automaticly updated release notes for v2.0.0-dev8

This reverts commit 7a197f516c.

.github/CONTRIBUTING.md

@@ -0,0 +1,29 @@
+# Contributing to ESPEasy
+
+:+1::tada: First off, thanks for taking the time to contribute! :tada::+1:
+
+## Issue tracker
+
+* The issue tracker is NOT a support forum. For support questions go to our forum: https://www.letscontrolit.com/forum/viewforum.php?f=1
+
+* Only post an issue if you're 100% sure you've hit a bug. If your not sure, post on the forum first to see if anyone can confirm it.
+
+This way we keep the issue tracker as short as possible, which saves our developers a lot of time.
+
+Also there are more people on the forum that can help you with support.
+
+## Pull requests
+
+ * Make sure your code compiles.
+ 
+ * Try to create different pull requests for different features/fixes. 
+ 
+ * Dont combine a lot of different stuff in one huge pull request.
+
+ * Incomplete or unstable plugins should have a PLUGIN_BUILD_DEV ifdef around them.
+ 
+ * New plugins that seem to be working correctly should have a PLUGIN_BUILD_TESTING around until they are tested enough.
+
+ * Also see our general guidelines at: https://www.letscontrolit.com/wiki/index.php/ESPEasyDevelopmentGuidelines
+ 
+ 

.github/issue_template.md

@@ -0,0 +1,14 @@
+### Steps to reproduce
+How can we trigger this problem?
+
+### Expected behavior
+Tell us what should happen?
+
+### Actual behavior
+Tell us what happens instead?
+
+### System configuration
+
+Hardware:
+
+Software or git version:

.gitmodules

@@ -1,9 +0,0 @@
-[submodule "lib/Adafruit_NeoPixel"]
-	path = lib/Adafruit_NeoPixel
-	url = https://github.com/adafruit/Adafruit_NeoPixel.git
-[submodule "lib/ArduinoJson"]
-	path = lib/ArduinoJson
-	url = https://github.com/bblanchon/ArduinoJson.git
-[submodule "lib/IRremoteESP8266"]
-	path = lib/IRremoteESP8266
-	url = https://github.com/sebastienwarin/IRremoteESP8266.git

README.md

@@ -9,3 +9,6 @@ Check here to learn how to use this branch and help us improving ESPEasy: http:/
 Binary development releases are here: https://github.com/letscontrolit/ESPEasy/releases
 
 Details and discussion are on the Experimental forum: http://www.letscontrolit.com/forum/viewtopic.php?f=18&t=2257&p=13600#p13600
+
+
+

dist/Plugin_sizes.txt

@@ -0,0 +1,63 @@
+plugin                        |cache IRAM |init RAM   |r.o. RAM   |uninit RAM |Flash ROM
+src/_C001.ino                 |0          |0          |272        |0          |3520
+src/_C002.ino                 |0          |4          |528        |32         |6064
+src/_C003.ino                 |0          |0          |64         |0          |1072
+src/_C004.ino                 |0          |0          |56         |8          |1280
+src/_C005.ino                 |0          |4          |56         |8          |1424
+src/_C006.ino                 |0          |0          |64         |0          |1296
+src/_C007.ino                 |0          |4          |32         |0          |1664
+src/_C008.ino                 |0          |0          |80         |0          |2272
+src/_C009.ino                 |0          |4          |352        |16         |4896
+src/_C010.ino                 |0          |0          |48         |0          |1136
+src/_C011.ino                 |0          |0          |152        |8          |5248
+src/_N001_Email.ino           |0          |0          |72         |8          |1808
+src/_N002_Buzzer.ino          |288        |12         |8          |264        |1184
+src/_P001_Switch.ino          |1028       |8          |104        |280        |7248
+src/_P002_ADC.ino             |0          |0          |16         |0          |336
+src/_P003_Pulse.ino           |167        |0          |144        |192        |2544
+src/_P004_Dallas.ino          |0          |0          |64         |16         |2496
+src/_P005_DHT.ino             |0          |0          |56         |8          |1520
+src/_P006_BMP085.ino          |0          |4          |48         |8          |2112
+src/_P007_PCF8591.ino         |0          |0          |8          |8          |400
+src/_P008_RFID.ino            |101        |0          |56         |8          |624
+src/_P009_MCP.ino             |0          |0          |104        |24         |3232
+src/_P010_BH1750.ino          |0          |0          |56         |8          |2688
+src/_P011_PME.ino             |0          |4          |96         |0          |3040
+src/_P012_LCD.ino             |0          |4          |120        |8          |3520
+src/_P013_HCSR04.ino          |90         |0          |64         |16         |1552
+src/_P014_SI7021.ino          |0          |4          |48         |0          |1824
+src/_P015_TSL2561.ino         |0          |0          |56         |8          |3488
+src/_P016_IR.ino              |288        |0          |72         |480        |3600
+src/_P017_PN532.ino           |0          |0          |88         |72         |2016
+src/_P018_Dust.ino            |0          |0          |56         |8          |512
+src/_P019_PCF8574.ino         |0          |0          |104        |24         |2848
+src/_P020_Ser2Net.ino         |0          |0          |88         |40         |3456
+src/_P021_Level.ino           |0          |4          |136        |24         |1872
+src/_P022_PCA9685.ino         |0          |4          |32         |0          |1216
+src/_P023_OLED.ino            |0          |4          |80         |0          |4448
+src/_P024_MLX90614.ino        |0          |4          |56         |8          |992
+src/_P025_ADS1115.ino         |0          |0          |72         |8          |1184
+src/_P026_Sysinfo.ino         |0          |0          |72         |8          |864
+src/_P027_INA219.ino          |0          |0          |56         |24         |1840
+src/_P028_BME280.ino          |128        |0          |48         |80         |3488
+src/_P029_Output.ino          |0          |4          |8          |8          |256
+src/_P030_BMP280.ino          |128        |0          |48         |48         |3024
+src/_P031_SHT1X.ino           |0          |0          |100        |0          |2176
+src/_P032_MS5611.ino          |0          |4          |88         |56         |2592
+src/_P033_Dummy.ino           |0          |4          |48         |0          |1168
+src/_P034_DHT12.ino           |0          |0          |16         |0          |656
+src/_P035_IRTX.ino            |0          |4          |64         |-8         |3840
+src/_P036_FrameOLED.ino       |0          |4          |96         |0          |33600
+src/_P037_MQTTImport.ino      |0          |0          |24         |40         |3536
+src/_P038_NeoPixel.ino        |128        |0          |56         |8          |1712
+src/_P039_Thermocouple.ino    |0          |0          |104        |8          |1536
+src/_P040_ID12.ino            |0          |4          |72         |8          |640
+src/_P041_NeoClock.ino        |128        |4          |128        |0          |3344
+src/_P042_Candle.ino          |128        |8          |160        |32         |8048
+src/_P043_ClkOutput.ino       |0          |0          |80         |0          |1456
+src/_P044_P1WifiGateway.ino   |0          |0          |80         |64         |4032
+src/_P045_MPU6050.ino         |0          |4          |216        |72         |4496
+src/_P046_VentusW266.ino      |325        |4          |184        |88         |3920
+src/_P047_i2c-soil-moisture-so|0          |4          |216        |8          |2144
+src/_P048_Motorshield_v2.ino  |0          |32         |208        |0          |5952
+src/_P049_MHZ19.ino           |380        |80         |184        |88         |3792

dist/Release_notes.txt

@@ -1,3 +1,181 @@
+-----------------------------
+Changes in release v2.0.0-dev8
+-----------------------------
+
+Release date: Mon Apr 24 13:21:32 CEST 2017
+
+DatuX (6):
+      Update README.md
+      Update README.md
+      Update README.md
+      Update CONTRIBUTING.md
+      Update CONTRIBUTING.md
+      Update README.md
+
+David Conran (2):
+      Update IRremoteESP8266 library url in .gitmodules
+      update sendSony() call to use repeats.
+
+Dirk Moeller (2):
+      new function, Plugin_004_DS_setResolution und Plugin_004_DS_getResolution
+      fix typo
+
+Edwin Eefting (36):
+      temporary disabled IR plugins, because of iram1_0_seg issues
+      initial version of memory analyser
+      moved arduinojson and liquidcrytal includes to correct plugins. reanbled IR-modules to solve memory issues
+      make the IRTX plugin work without the IR plugin
+      initial memory analyser and results
+      reduced memory usage _C001
+      reduced mem C001 C002
+      reduced ram usage C003 ... C011
+      reduce memory usage N001 N002
+      cleaned up servo stuff
+      recuded number of pulsecounters from 8 to 4 to save IRAM
+      contributing guidelines
+      fixed crash in C001 (when opening /controllers)
+      avoid static buffers in c001. addLog now also supports F(), so we dont need all those temporary variable definitions
+      removed unneccesay delays from c001
+      avoid unneccesary string conversions and static buffers in c001
+      fixed crashes caused by large MQTT packets
+      fixed lots of common issues that might cause crashes in c011. also see https://github.com/letscontrolit/ESPEasy/issues/117#issuecomment-293713370
+      added issue template to get cleaner bug reports
+      replaced all readstringuntil() with safeReadStringUntil()
+      starting working on stability reporting function
+      fixed stability issues in c009. probably caused by illegal PSTR usage, but i completly cleaned up all string handling
+      improved statusled handling in background tasks
+      converted submodule to normal directory. lib/Adafruit_Motor_Shield_V2 upstream commit ee4c4d334f498d54cdf80c9cc6f5bdec2533f8bf
+      now no longer a submodule lib/AS_BH1750, upstream version 092f0b1c5fa74eb2abe3d1b2925190d066e9506d
+      now no longer a submodule. lib/Adafruit_NeoPixel, upstream version v1.0.6
+      now no longer a submodule, lib/Adafruit_TCS34725 upstream version 1.0.1-13-g12be4c6
+      now no longer a submodule. lib/ArduinoJson upstream version v5.6.4
+      now no longer a submodule. lib/IRremoteESP8266 upstream version v1.0.2
+      oops moved lib/Adafruit_TCS34725 to wrong place
+      select env
+      Revert "Plugin_008-RFID extended with wiegand 34-bits and key-pad (4-bits per key) support". Now uses too much IRAM.
+      dont use arduino OTA in the dev env
+      escape html in the rules page, so that strings like &param do not cause problems. fixes issue #231
+      properly escape html in C011 generic http advanced.
+      fixed #239 due to improper PSTR. cleaned up string handling
+
+Emmanuel Tatto (1):
+      getBearing should be outside the FEATURE_ARDUINO_OTA condition (#207)
+
+Gerben Meijer (1):
+      Extend MH-Z19 sensor support
+
+JK (3):
+      More informative and intuitive status LED
+      Using 3 I/O-pins consequently
+      added union to TaskDevicePin1..3
+
+Jochen Krapf (1):
+      Added function isDeepSleepEnabled() (#177)
+
+adb76 (2):
+      Set BME280 to recommended values for climate / weather sensor
+      BME280: Ensure sensor is in sleep mode to set the config, fix small typo
+
+beic (13):
+      Menu correction, added BMP180 (#199)
+      Added detection for the HTU21D to I2C scenner
+      Environment naming will better fit in...
+      Environment naming will better fit in + HTU21D
+      Environment naming will better fit in... + naming
+      Environment naming will better fit in...
+      Environment naming will better fit in...
+      Environment naming will better fit in...
+      Environment naming will better fit in...
+      Environment naming will better fit in...
+      Little naming correction
+      Naming correction by Datasheet
+      Added detection for the SI1145 to I2C scenner
+
+dev0 (1):
+      _C009.ino: RFC conformity and removed obsolet code (#163)
+
+imthemichi (1):
+      Plugin_008-RFID extended with wiegand 34-bits and key-pad (4-bits per key) support
+
+jbaumann (1):
+      Addition of ESP8285 targets (#187)
+
+krikk (16):
+      motorshield library should be a submodule, enhanced the motorshield plugin... (#162)
+      http advanced: add replacement variable for systime, vcc, ip, sysload, uptime (#167)
+      corrected name for TSL2561, add option to use different sensor adress (#170)
+      re-did old pull requests (#172)
+      Tsl2561 rewrite (#174)
+      I2csoilmoisture fixed bug with sleep mode (#178)
+      Pulsecounter minor fix (#184)
+      rewrote bh1750 sensor based on better library... (#182)
+      cppcheck style fixes... (#186)
+      added i2c address selection to ino219 plugin (#192)
+      Motorshield plugin string fixes (#200) (reduced memory usage)
+      Support for Tcs34725 RGB Color Sensor (#195)
+      _P047_i2c-soil-moisture-sensor: allow change of sensor address (#201)
+      Httpadvanced crashfix + patch method (#204)
+      Bh1750: enhance to check for valid value (#208)
+      removed all unnecessary Strings due to new addLog with FlashStringHelper (#223)
+
+tedenda (1):
+      Update _P049_MHZ19.ino
+
+
+-----------------------------
+Changes in release v2.0.0-dev7
+-----------------------------
+
+Release date: Wed Mar 15 01:42:15 CET 2017
+
+Edwin Eefting (5):
+      timers can be disabled by setting them to 0 now. cleaned up event output logging. added timer out-of-bounds checks
+      added i2scanner via serial. removed spaces from Adafruit Motor Shield library so it works with arduino IDE
+      fixed Arduino IDE compilebug and added help to enable plugin sets in Arduino IDE
+      automaticly updated release notes for v2.0.0-dev7
+      fix in release-script (forgot to commit it last time)
+
+krikk (2):
+      code cleanup for HTTP advanced controller
+      show date in webinterface,  and changed password fields to type=password (#161)
+
+
+
+-----------------------------
+Changes in release v2.0.0-dev6
+-----------------------------
+
+Release date: Mon Mar 13 11:54:41 CET 2017
+
+Edwin Eefting (15):
+      created script to assist in creating releases
+      bug fix: plugin_id should not start with a 0. (compiler interprets this as octal!)
+      Revert "bug fix: plugin_id should not start with a 0. (compiler interprets this as octal!)"
+      bug fix: plugin_id should not start with a 0. (compiler interprets this as octal!)
+      added NDIR CO2 Sensor MH-Z19 plugin to TESTING plugin set
+      remove artificial sensor startup delays. (now all sensors are send immediatly after booting and wifi-connecting)
+      do hardwareinit() earlier so that outputs are set immeadiatly instead of waiting for connect. fixes https://github.com/letscontrolit/ESPEasy/issues/114
+      enable status light as soon as wifi is connected
+      use sizeof instead of magic numbers
+      Implemented speaker and tone functions from https://www.letscontrolit.com/forum/viewtopic.php?f=4&t=343&hilit=speaker&start=10
+      enabled Arduino OTA for dev-firmware only, to ease developing. minor output-tweaks
+      cold boot startup delay
+      major change: changed the timing of the first sensor read after initial boot. cleaned up and improved deep sleeping code.
+      added plugin to testing. remove useless value variable
+      automaticly updated release notes for v2.0.0-dev6
+
+Gerald (2):
+      HTTP Advanced, enhanced, so that only one http request is sent for one sensor (#156)
+      added missing sensor type, to fix problem with i2c soilmoisture sensor... (#157)
+
+Jochen Krapf (1):
+      cancel deep sleep loop by pulling the pin GPIO16(D0) to GND (#158)
+
+dzikus (1):
+      Added BMP280_CONFIG_SETTING to reduce the temperature of sensor and use oversampling filter (#155)
+
+
+
 -----------------------------
 Changes in release v2.0.0-dev5
 -----------------------------

lib/AS_BH1750/.gitignore

@@ -0,0 +1,13 @@
+# Compiled Object files
+*.slo
+*.lo
+*.o
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a

lib/AS_BH1750/AS_BH1750.cpp

@@ -0,0 +1,476 @@
+/*
+ This is a (Arduino) library for the BH1750FVI Digital Light Sensor.
+ 
+ Description:
+ http://www.rohm.com/web/global/products/-/product/BH1750FVI
+ 
+ Datasheet:
+ http://rohmfs.rohm.com/en/products/databook/datasheet/ic/sensor/light/bh1750fvi-e.pdf
+ 
+ Copyright (c) 2013 Alexander Schulz.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the GNU
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA	 02110-1301	 USA
+ */
+
+#include "AS_BH1750.h"
+
+// Debug-Flag
+#define BH1750_DEBUG 0
+
+/**
+ * Constructor.
+ * Erlaubt die I2C-Adresse des Sensors zu ändern. 
+ * Standardadresse: 0x23, Alternativadresse: 0x5C. 
+ * Es sind entsprechende Konstanten definiert: BH1750_DEFAULT_I2CADDR  und BH1750_SECOND_I2CADDR.
+ * Bei Nichtangabe wird die Standardadresse verwendet. 
+ * Um die Alternativadresse zu nutzen, muss der Sensorpin 'ADR' des Chips auf VCC gelegt werden.
+ */
+AS_BH1750::AS_BH1750(uint8_t address) {
+  _address = address;
+  _hardwareMode = 255;
+}
+
+/**
+ * Führt die anfängliche Initialisierung des Sensors.
+ * Mögliche Parameter: 
+ *  - Modus für die Sensorauflösung:
+ *    -- RESOLUTION_LOW:         Physische Sensormodus mit 4 lx Auflösung. Messzeit ca. 16ms. Bereich 0-54612.
+ *    -- RESOLUTION_NORMAL:      Physische Sensormodus mit 1 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+ *    -- RESOLUTION_HIGH:        Physische Sensormodus mit 0,5 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+ *                               (Die Messbereiche können durch Änderung des MTreg verschoben werden.)
+ *    -- RESOLUTION_AUTO_HIGH:   Die Werte im MTreg werden je nach Helligkeit automatisch so angepasst, 
+ *                               dass eine maximalmögliche Auflösung und Messbereich erziehlt werden.
+ *                               Die messbaren Werte fangen von 0,11 lx und gehen bis über 100000 lx.
+ *                               (ich weis nicht, wie genau die Werte in Grenzbereichen sind, 
+ *                               besonders bei hohen Werte habe ich da meine Zweifel.
+ *                               Die Werte scheinen jedoch weitgehend linear mit der steigenden Helligkeit zu wachsen.)
+ *                               Auflösung im Unteren Bereich ca. 0,13 lx, im mittleren 0,5 lx, im oberen etwa 1-2 lx.
+ *                               Die Messzeiten verlängern sich durch mehrfache Messungen und 
+ *                               die Änderungen von Measurement Time (MTreg) bis max. ca. 500 ms.
+ *   
+ * - AutoPowerDown: true = Der Sensor wird nach der Messung in den Stromsparmodus versetzt. 
+ *   Das spätere Aufwecken wird ggf. automatisch vorgenommen, braucht jedoch geringfügig mehr Zeit.
+ *
+ * Defaultwerte: RESOLUTION_AUTO_HIGH, true
+ *
+ */
+bool AS_BH1750::begin(sensors_resolution_t mode, bool autoPowerDown) {
+#if BH1750_DEBUG == 1
+  Serial.print("  sensors_resolution_mode (virtual): ");
+  Serial.println(mode, DEC);
+#endif
+  _virtualMode = mode;
+  _autoPowerDown = autoPowerDown;
+  
+  Wire.begin();
+
+  defineMTReg(BH1750_MTREG_DEFAULT); // eigentlich normalerweise unnötig, da standard
+
+  // Hardware-Modus zum gewünschten VitrualModus ermitteltn
+  switch (_virtualMode) {
+  case RESOLUTION_LOW:
+    _hardwareMode = autoPowerDown?BH1750_ONE_TIME_LOW_RES_MODE:BH1750_CONTINUOUS_LOW_RES_MODE;
+    break;
+  case RESOLUTION_NORMAL:
+    _hardwareMode = autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE:BH1750_CONTINUOUS_HIGH_RES_MODE;
+    break;
+  case RESOLUTION_HIGH:
+    _hardwareMode = autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE_2:BH1750_CONTINUOUS_HIGH_RES_MODE_2;
+    break;
+  case RESOLUTION_AUTO_HIGH:
+    _hardwareMode = BH1750_CONTINUOUS_LOW_RES_MODE;
+    break;
+  default:
+    // darf eigentlich nicht passieren...
+    _hardwareMode = 255;
+    break;
+  }
+
+#if BH1750_DEBUG == 1
+  Serial.print("hardware mode: ");
+  Serial.println(_hardwareMode, DEC);
+#endif
+
+  if(_hardwareMode==255) {
+    return false;
+  }
+
+  // Versuchen, den gewählten Hardwaremodus zu aktivieren
+  if(selectResolutionMode(_hardwareMode)){
+#if BH1750_DEBUG == 1
+    Serial.print("hardware mode defined successfully");
+    Serial.println(_hardwareMode, DEC);
+#endif
+    return true;
+  }
+
+  // Initialisierung fehlgeschlagen
+#if BH1750_DEBUG == 1
+  Serial.print("failure to aktivate hardware mode ");
+  Serial.println(_hardwareMode, DEC);
+#endif
+  _hardwareMode = 255;
+  return false;
+}
+
+/**
+ * Erlaub eine Prüfung, ob ein (ansprechbarer) BH1750-Sensor vorhanden ist.
+ */
+bool AS_BH1750::isPresent() {
+  // Check I2C Adresse
+  Wire.beginTransmission(_address);
+  if(Wire.endTransmission()!=0) {
+    return false; 
+  }
+
+  // Check device: ist es ein BH1750
+  if(!isInitialized()) {
+    // zuvor inaktiv, daher zu Testen schnelltes einmal-Mode aktivieren
+    //write8(BH1750_POWER_ON);
+    selectResolutionMode(BH1750_ONE_TIME_LOW_RES_MODE);
+    _hardwareMode=255;
+  } 
+  else {
+    // falls einmal-modus aktiv war, muss der Sensor geweckt werden
+    powerOn(); 
+  }
+
+  // Prüfen, ob Werte auch wirklich geliefert werden (letztes Modus, ggf. wird auto-PowerDown ausgeführt)
+  return (readLightLevel()>=0);
+}
+
+/**
+ * Weckt ein im PowerDown-Modus befindlichen Sensor auf (schadet auch dem 'wachen' Sensor nicht).
+ * Funktionier nur, wenn der Sensor bereits initialisiert wurde.
+ */
+void AS_BH1750::powerOn() {
+  if(!isInitialized()) {
+#if BH1750_DEBUG == 1
+    Serial.println("sensor not initialized");
+#endif
+    return;
+  }
+
+  _valueReaded=false;
+  //write8(BH1750_POWER_ON); //
+  //fDelayPtr(10); // Nötig?
+  // Scheinbar reicht das Setzen von HardwareMode auch ohne PowerON-Befehl aus
+  selectResolutionMode(_hardwareMode); // letzten Modus wieder aktivieren
+}
+
+/**
+ * Schickt den Sensor in Stromsparmodus.
+ * Funktionier nur, wenn der Sensor bereits initialisiert wurde.
+ */
+void AS_BH1750::powerDown() {
+  if(!isInitialized()) {
+#if BH1750_DEBUG == 1
+    Serial.println("sensor not initialized");
+#endif
+    return;
+  }
+
+  write8(BH1750_POWER_DOWN);
+}
+
+/**
+ * Sendet zum Sensor ein Befehl zum Auswahl von HardwareMode.
+ *
+ * Parameter:
+ * - mode: s.o. 
+ * - DelayFuncPtr: delay(n) Möglichkeit, eigene Delay-Funktion mitzugeben (z.B. um sleep-Modus zu verwenden).
+ * 
+ * Defaultwerte: delay()
+ *
+ */
+bool AS_BH1750::selectResolutionMode(uint8_t mode, DelayFuncPtr fDelayPtr) {
+#if BH1750_DEBUG == 1
+    Serial.print("selectResolutionMode: ");
+    Serial.println(mode, DEC);
+#endif
+  if(!isInitialized()) {
+    return false;
+#if BH1750_DEBUG == 1
+    Serial.println("sensor not initialized");
+#endif
+  }
+
+  _hardwareMode=mode;
+  _valueReaded=false;
+
+  // Prüfen, ob ein valides Modus vorliegt und im positiven Fall das gewünschte Modus aktivieren
+  switch (mode) {
+  case BH1750_CONTINUOUS_HIGH_RES_MODE:
+  case BH1750_CONTINUOUS_HIGH_RES_MODE_2:
+  case BH1750_CONTINUOUS_LOW_RES_MODE:
+  case BH1750_ONE_TIME_HIGH_RES_MODE:
+  case BH1750_ONE_TIME_HIGH_RES_MODE_2:
+  case BH1750_ONE_TIME_LOW_RES_MODE:
+    // Modus aktivieren
+    if(write8(mode)) {
+    // Kurze pause nötig, sonst wird das Modus nicht sicher Aktiviert
+    // (z.B. liefert Sensor im AutoHigh Modus abwechselnd übersteuerte Werte, etwa so: 54612.5, 68123.4, 54612.5, 69345.3,..)
+    fDelayPtr(5);
+      return true;
+    }
+    break;
+  default:
+    // Invalid measurement mode
+#if BH1750_DEBUG == 1
+    Serial.println("Invalid measurement mode");
+#endif
+    break;
+  }
+
+  return false;
+}
+
+/**
+ * Liefert aktuell gemessenen Wert für Helligkeit in lux (lx).
+ * Falls sich der Sensorf in Stromsparmodus befindet, wird er automatisch geweckt.
+ *
+ * Wurde der Sensor (noch) nicht initialisiert (begin), wird der Wert -1 geliefert.
+ */
+float AS_BH1750::readLightLevel(DelayFuncPtr fDelayPtr) {
+#if BH1750_DEBUG == 1
+    Serial.print("call: readLightLevel. virtualMode: ");
+    Serial.println(_virtualMode, DEC);
+#endif
+
+  if(!isInitialized()) {
+#if BH1750_DEBUG == 1
+    Serial.println("sensor not initialized");
+#endif
+    return -1;
+  }
+
+  // ggf. PowerOn  
+  if(_autoPowerDown && _valueReaded){
+    powerOn();
+  }
+
+  // Das Automatische Modus benötigt eine Sonderbehandlung.
+  // Zuerst wird die Helligkeit im LowRes-Modus gelesen, 
+  // je nach Bereich (dunkel, normal, sehr hell) werden die Werte von MTreg gesetzt und
+  // danach wird die eigentliche Messung vorgenommen.
+  /*
+     Die feste Grenzwerte verursachen möglicherweise einen 'Sprung' in der Messkurve. 
+   In diesem Fall wäre eine laufende Anpassung von MTreg in Grenzbereichen vermutlich besser.
+   Für meine Zwecke ist das jedoch ohne Bedeutung.
+   */
+  if(_virtualMode==RESOLUTION_AUTO_HIGH) {
+    defineMTReg(BH1750_MTREG_DEFAULT);
+    selectResolutionMode(BH1750_CONTINUOUS_LOW_RES_MODE, fDelayPtr);
+    fDelayPtr(16); // Lesezeit in LowResMode
+    uint16_t level = readRawLevel();
+#if BH1750_DEBUG == 1
+    Serial.print("AutoHighMode: check level read: ");
+    Serial.println(level, DEC);
+#endif
+    if(level<10) {
+#if BH1750_DEBUG == 1
+    Serial.println("level 0: dark");
+#endif    
+      // Dunkel, Empfindlichkeit auf Maximum. 
+      // Der Wert ist zufällig. Ab ca. 16000 wäre diese Vorgehnsweise möglich.
+      // Ich brauche diese Genauigkeit aber nur in den ganz dunklen Bereichen (zu erkennen, wann wirklich 'dunkel' ist).
+      defineMTReg(BH1750_MTREG_MAX);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE_2:BH1750_CONTINUOUS_HIGH_RES_MODE_2, fDelayPtr);
+      fDelayPtr(120*3.68); // TODO: Wert prüfen
+      //fDelayPtr(122);
+    }
+    else if(level<32767) {
+#if BH1750_DEBUG == 1
+    Serial.println("level 1: normal");
+#endif    
+      // Bis hierher reicht die 0,5 lx Modus. Normale Empfindlichkeit.
+      defineMTReg(BH1750_MTREG_DEFAULT);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE_2:BH1750_CONTINUOUS_HIGH_RES_MODE_2, fDelayPtr);
+      fDelayPtr(120); // TODO: Wert prüfen
+    } 
+    else if(level<60000) {
+#if BH1750_DEBUG == 1
+    Serial.println("level 2: bright");
+#endif    
+      // hoher Bereich, 1 lx Modus, normale Empfindlichkeit. Der Wert von 60000 ist mehr oder weniger zufällig, es mus einfach ein hoher Wert, nah an der Grenze sein.
+      defineMTReg(BH1750_MTREG_DEFAULT);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE:BH1750_CONTINUOUS_HIGH_RES_MODE, fDelayPtr);
+      fDelayPtr(120); // TODO: Wert prüfen
+    }
+    else {
+#if BH1750_DEBUG == 1
+    Serial.println("level 3: very bright");
+#endif    
+      // sehr hoher Bereich, Empfindlichkeit verringern
+      defineMTReg(32); // Min+1, bei dem Minimum aus Doku spielt der Sensor (zumindest meiner) verrückt: Die Werte sind ca. 1/10 von den Erwarteten.
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE:BH1750_CONTINUOUS_HIGH_RES_MODE, fDelayPtr);
+      fDelayPtr(120); // TODO: Wert prüfen
+    }
+  } 
+
+  // Hardware Wert lesen und in Lux umrechnen.
+  uint16_t raw = readRawLevel();
+  if(raw==65535) {
+    // Wert verdächtig hoch. Sensor prüfen. 
+    // Check I2C Adresse
+    Wire.beginTransmission(_address);
+    if(Wire.endTransmission()!=0) {
+      return -1; 
+    }
+  }
+  return convertRawValue(raw); 
+}
+
+/**
+ * Roh-Wert der Helligkeit auslesen. 
+ * Wertebereich 0-65535.
+ */
+uint16_t AS_BH1750::readRawLevel(void) {
+  uint16_t level;
+  Wire.beginTransmission(_address);
+  Wire.requestFrom(_address, 2);
+#if (ARDUINO >= 100)
+  level = Wire.read();
+  level <<= 8;
+  level |= Wire.read();
+#else
+  level = Wire.receive();
+  level <<= 8;
+  level |= Wire.receive();
+#endif
+  if(Wire.endTransmission()!=0) {
+#if BH1750_DEBUG == 1
+    Serial.println("I2C read error");
+#endif
+    return 65535; // Error marker
+  }
+
+#if BH1750_DEBUG == 1
+  Serial.print("Raw light level: ");
+  Serial.println(level);
+#endif
+
+  _valueReaded=true;
+
+  return level;
+}
+
+/**
+ * Rechnet Roh-Werte in Lux um.
+ */
+float AS_BH1750::convertRawValue(uint16_t raw) {
+  // Basisumrechnung
+  float flevel = raw/1.2;
+
+#if BH1750_DEBUG == 1
+  Serial.print("convert light level (1): ");
+  Serial.println(flevel);
+#endif
+
+  // MTreg-Einfluss berechnen
+  if(_MTreg!=BH1750_MTREG_DEFAULT) { // bei 69 ist der Faktor = 1
+    flevel = flevel * _MTregFactor;
+#if BH1750_DEBUG == 1
+    Serial.print("convert light level (2): ");
+    Serial.println(flevel);
+#endif
+  }
+
+  // je nach Modus ist eine weitere Umrechnung nötig
+  switch (_hardwareMode) {
+  case BH1750_CONTINUOUS_HIGH_RES_MODE_2:
+  case BH1750_ONE_TIME_HIGH_RES_MODE_2:
+    flevel = flevel/2;
+#if BH1750_DEBUG == 1
+    Serial.print("convert light level (3): ");
+    Serial.println(flevel);
+#endif
+    break;
+  default:
+    // nothing to do
+    break;
+  }
+
+#if BH1750_DEBUG == 1
+  Serial.print("Light level: ");
+  Serial.println(flevel);
+#endif
+
+  return flevel;
+}
+
+/**
+ * MTreg setzen. Definiert Empfindlichkeit des Sensors.
+ * Min.Wert (BH1750_MTREG_MIN) =  31 (Empfindlichkeit: default*0,45)
+ * Max.Wert (BH1750_MTREG_MAX) = 254 (Empfindlichkeit: default*3,68)
+ * Default (BH1750_MTREG_DEFAULT) = 69.
+ * Mit der Empfindlichkeit verändert sich die Lesezeit (höhere Empfindlichkeit bedeutet längere Zeitspanne).
+ */
+void AS_BH1750::defineMTReg(uint8_t val) {
+  if(val<BH1750_MTREG_MIN) {
+    val = BH1750_MTREG_MIN;
+  }
+  if(val>BH1750_MTREG_MAX) {
+    val = BH1750_MTREG_MAX;
+  }
+  if(val!=_MTreg) {
+    _MTreg = val;
+    _MTregFactor = (float)BH1750_MTREG_DEFAULT / _MTreg;
+
+    // Change Measurement time
+    // Übertragung in zwei Schritten: 3 Bit und 5 Bit, jeweils mit einem Prefix.
+    //   High bit: 01000_MT[7,6,5]
+    //   Low bit:  011_MT[4,3,2,1,0]
+    uint8_t hiByte = val>>5;
+    hiByte |= 0b01000000;
+#if BH1750_DEBUG == 1
+    Serial.print("MGTreg high byte: ");
+    Serial.println(hiByte, BIN);
+#endif
+    write8(hiByte);
+    //fDelayPtr(10);
+    // Pause nötig?
+    uint8_t loByte = val&0b00011111;
+    loByte |= 0b01100000;
+#if BH1750_DEBUG == 1
+    Serial.print("MGTreg low byte: ");
+    Serial.println(loByte, BIN);
+#endif
+    write8(hiByte);
+    //fDelayPtr(10);
+  }
+}
+
+/**
+ * Gibt an, ob der Sensor initialisiert ist.
+ */
+bool AS_BH1750::isInitialized() {
+  return _hardwareMode!=255; 
+}
+
+/**
+ * Schreibt ein Byte auf I2C Bus (auf die Adresse des Sensors).
+ */
+bool AS_BH1750::write8(uint8_t d) {
+  Wire.beginTransmission(_address);
+#if (ARDUINO >= 100)
+  Wire.write(d);
+#else
+  Wire.send(d);
+#endif
+  return (Wire.endTransmission()==0);
+}
+
+

lib/AS_BH1750/AS_BH1750.h

@@ -0,0 +1,183 @@
+/*
+ This is a (Arduino) library for the BH1750FVI Digital Light Sensor.
+ 
+ Description:
+ http://www.rohm.com/web/global/products/-/product/BH1750FVI
+ 
+ Datasheet:
+ http://rohmfs.rohm.com/en/products/databook/datasheet/ic/sensor/light/bh1750fvi-e.pdf
+ 
+ Copyright (c) 2013 Alexander Schulz.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the GNU
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA	 02110-1301	 USA
+ */
+
+#ifndef AS_BH1750_h
+#define AS_BH1750_h
+
+#if (ARDUINO >= 100)
+#include <Arduino.h>
+#else
+#include <WProgram.h>
+#endif
+#include "Wire.h"
+
+// Mögliche I2C Adressen
+#define BH1750_DEFAULT_I2CADDR 0x23
+#define BH1750_SECOND_I2CADDR 0x5C
+
+// MTreg Werte
+// Default
+#define BH1750_MTREG_DEFAULT 69
+// Sensitivity : default = 0.45
+#define BH1750_MTREG_MIN 31
+// Sensitivity : default = 3.68
+#define BH1750_MTREG_MAX 254
+
+// Hardware Modi
+// No active state
+#define BH1750_POWER_DOWN 0x00
+
+// Wating for measurment command
+#define BH1750_POWER_ON 0x01
+
+// Reset data register value - not accepted in POWER_DOWN mode
+#define BH1750_RESET 0x07
+
+// Start measurement at 1lx resolution. Measurement time is approx 120ms.
+#define BH1750_CONTINUOUS_HIGH_RES_MODE  0x10
+
+// Start measurement at 0.5lx resolution. Measurement time is approx 120ms.
+#define BH1750_CONTINUOUS_HIGH_RES_MODE_2  0x11
+
+// Start measurement at 4lx resolution. Measurement time is approx 16ms.
+#define BH1750_CONTINUOUS_LOW_RES_MODE  0x13
+
+// Start measurement at 1lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_HIGH_RES_MODE  0x20
+
+// Start measurement at 0.5lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_HIGH_RES_MODE_2  0x21
+
+// Start measurement at 1lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_LOW_RES_MODE  0x23
+
+/** Virtual Modi */
+typedef enum
+{
+  RESOLUTION_LOW         = (1), /** 4lx resolution. Measurement time is approx 16ms. */  
+  RESOLUTION_NORMAL      = (2), /** 1lx resolution. Measurement time is approx 120ms. */
+  RESOLUTION_HIGH        = (3), /** 0,5lx resolution. Measurement time is approx 120ms. */
+  RESOLUTION_AUTO_HIGH   = (99) /** 0,11-1lx resolution. Measurement time is above 250ms. */
+  }  
+  sensors_resolution_t;
+
+typedef void (*DelayFuncPtr)(unsigned long);
+typedef unsigned long (*TimeFuncPtr)(void);
+
+/**
+ * BH1750 driver class.
+ */
+class AS_BH1750 {
+public:
+  /**
+   * Constructor.
+   * Erlaubt die I2C-Adresse des Sensors zu ändern. 
+   * Standardadresse: 0x23, Alternativadresse: 0x5C. 
+   * Es sind entsprechende Konstanten definiert: BH1750_DEFAULT_I2CADDR  und BH1750_SECOND_I2CADDR.
+   * Bei Nichtangabe wird die Standardadresse verwendet. 
+   * Um die Alternativadresse zu nutzen, muss der Sensorpin 'ADR' des Chips auf VCC gelegt werden.
+   */
+  AS_BH1750(uint8_t address = BH1750_DEFAULT_I2CADDR);
+
+  /**
+   * Führt die anfängliche Initialisierung des Sensors.
+   * Mögliche Parameter: 
+   *  - Modus für die Sensorauflösung:
+   *    -- RESOLUTION_LOW:         Physische Sensormodus mit 4 lx Auflösung. Messzeit ca. 16ms. Bereich 0-54612.
+   *    -- RESOLUTION_NORMAL:      Physische Sensormodus mit 1 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+   *    -- RESOLUTION_HIGH:        Physische Sensormodus mit 0,5 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+   *                               (Die Messbereiche können durch Änderung des MTreg verschoben werden.)
+   *    -- RESOLUTION_AUTO_HIGH:   Die Werte im MTreg werden je nach Helligkeit automatisch so angepasst, 
+   *                               dass eine maximalmögliche Auflösung und Messbereich erziehlt werden.
+   *                               Die messbaren Werte fangen von 0,11 lx und gehen bis über 100000 lx.
+   *                               (ich weis nicht, wie genau die Werte in Grenzbereichen sind, 
+   *                               besonders bei hohen Werte habe ich meine Zweifel.)
+   *                               Auflösung im Unteren Bereich 0,13 lx, im mittleren 0,5 lx, im oberen 1-2 lx.
+   *                               Die Messzeiten verlängern sich durch mehrfache Messungen und 
+   *                               die Änderungen von Measurement Time (MTreg) bis max. ca. 500 ms.
+   *   
+   * - AutoPowerDown: true = Der Sensor wird nach der Messung in den Stromsparmodus versetzt. 
+   *   Das spätere Aufwecken wird ggf. automatisch vorgenommen, braucht jedoch geringfügig mehr Zeit.
+   *
+   * Defaultwerte: RESOLUTION_AUTO_HIGH, true, delay()
+   *
+   */
+  bool begin(sensors_resolution_t mode = RESOLUTION_AUTO_HIGH, bool autoPowerDown = true);
+
+  /**
+   * Erlaub eine Prüfung, ob ein (ansprechbarer) BH1750-Sensor vorhanden ist.
+   */
+  bool isPresent(void);
+
+  /**
+   * Liefert aktuell gemessenen Wert für Helligkeit in lux (lx).
+   * Falls sich der Sensorf in Stromsparmodus befindet, wird er automatisch geweckt.
+   *
+   * Wurde der Sensor (noch) nicht initialisiert (begin), wird der Wert -1 geliefert.
+   *
+   * Mögliche Parameter: 
+   *
+   * - DelayFuncPtr: delay(n) Möglichkeit, eigene Delay-Funktion mitzugeben (z.B. um sleep-Modus zu verwenden).
+   * 
+   * Defaultwerte: delay()
+   *
+   */
+  float readLightLevel(DelayFuncPtr fDelayPtr = &delay);
+
+  /**
+   * Schickt den Sensor in Stromsparmodus.
+   * Funktionier nur, wenn der Sensor bereits initialisiert wurde.
+   */
+  void powerDown(void);
+
+private:
+  int _address;
+  uint8_t _hardwareMode;
+
+  uint8_t _MTreg;
+  float _MTregFactor;
+
+  sensors_resolution_t _virtualMode;
+  bool _autoPowerDown;
+
+  bool _valueReaded;
+
+  bool selectResolutionMode(uint8_t mode, DelayFuncPtr fDelayPtr = &delay);
+  void defineMTReg(uint8_t val);
+  void powerOn(void);
+  void reset(void);
+  uint16_t readRawLevel(void);
+  float convertRawValue(uint16_t raw);
+  bool isInitialized();
+  bool write8(uint8_t data);
+};
+
+#endif
+
+

lib/AS_BH1750/AS_BH1750A.cpp

@@ -0,0 +1,705 @@
+/*
+ This is a (Arduino) library for the BH1750FVI Digital Light Sensor.
+ 
+ Description:
+ http://www.rohm.com/web/global/products/-/product/BH1750FVI
+ 
+ Datasheet:
+ http://rohmfs.rohm.com/en/products/databook/datasheet/ic/sensor/light/bh1750fvi-e.pdf
+ 
+ Copyright (c) 2013 Alexander Schulz.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the GNU
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA	 02110-1301	 USA
+ */
+
+#include "AS_BH1750A.h"
+
+// Debug-Flag
+#define BH1750_DEBUG 0
+
+/**
+ * Constructor.
+ * Erlaubt die I2C-Adresse des Sensors zu ändern. 
+ * Standardadresse: 0x23, Alternativadresse: 0x5C. 
+ * Es sind entsprechende Konstanten definiert: BH1750_DEFAULT_I2CADDR  und BH1750_SECOND_I2CADDR.
+ * Bei Nichtangabe wird die Standardadresse verwendet. 
+ * Um die Alternativadresse zu nutzen, muss der Sensorpin 'ADR' des Chips auf VCC gelegt werden.
+ */
+AS_BH1750A::AS_BH1750A(uint8_t address) {
+  _address = address;
+  _hardwareMode = 255;
+}
+
+/**
+ * Führt die anfängliche Initialisierung des Sensors.
+ * Mögliche Parameter: 
+ *  - Modus für die Sensorauflösung:
+ *    -- RESOLUTION_LOW:         Physische Sensormodus mit 4 lx Auflösung. Messzeit ca. 16ms. Bereich 0-54612.
+ *    -- RESOLUTION_NORMAL:      Physische Sensormodus mit 1 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+ *    -- RESOLUTION_HIGH:        Physische Sensormodus mit 0,5 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+ *                               (Die Messbereiche können durch Änderung des MTreg verschoben werden.)
+ *    -- RESOLUTION_AUTO_HIGH:   Die Werte im MTreg werden je nach Helligkeit automatisch so angepasst, 
+ *                               dass eine maximalmögliche Auflösung und Messbereich erziehlt werden.
+ *                               Die messbaren Werte fangen von 0,11 lx und gehen bis über 100000 lx.
+ *                               (ich weis nicht, wie genau die Werte in Grenzbereichen sind, 
+ *                               besonders bei hohen Werte habe ich da meine Zweifel.
+ *                               Die Werte scheinen jedoch weitgehend linear mit der steigenden Helligkeit zu wachsen.)
+ *                               Auflösung im Unteren Bereich ca. 0,13 lx, im mittleren 0,5 lx, im oberen etwa 1-2 lx.
+ *                               Die Messzeiten verlängern sich durch mehrfache Messungen und 
+ *                               die Änderungen von Measurement Time (MTreg) bis max. ca. 500 ms.
+ *   
+ * - AutoPowerDown: true = Der Sensor wird nach der Messung in den Stromsparmodus versetzt. 
+ *   Das spätere Aufwecken wird ggf. automatisch vorgenommen, braucht jedoch geringfügig mehr Zeit.
+ *
+ * Defaultwerte: RESOLUTION_AUTO_HIGH, true
+ *
+ */
+bool AS_BH1750A::begin(sensors_resolution_t mode, bool autoPowerDown) {
+#if BH1750_DEBUG == 1
+  Serial.print("  sensors_resolution_mode (virtual): ");
+  Serial.println(mode, DEC);
+#endif
+  _virtualMode = mode;
+  _autoPowerDown = autoPowerDown;
+  
+  Wire.begin();
+
+  defineMTReg(BH1750_MTREG_DEFAULT); // eigentlich normalerweise unnötig, da standard
+
+  // Hardware-Modus zum gewünschten VitrualModus ermitteltn
+  switch (_virtualMode) {
+  case RESOLUTION_LOW:
+    _hardwareMode = autoPowerDown?BH1750_ONE_TIME_LOW_RES_MODE:BH1750_CONTINUOUS_LOW_RES_MODE;
+    break;
+  case RESOLUTION_NORMAL:
+    _hardwareMode = autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE:BH1750_CONTINUOUS_HIGH_RES_MODE;
+    break;
+  case RESOLUTION_HIGH:
+    _hardwareMode = autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE_2:BH1750_CONTINUOUS_HIGH_RES_MODE_2;
+    break;
+  case RESOLUTION_AUTO_HIGH:
+    _hardwareMode = BH1750_CONTINUOUS_LOW_RES_MODE;
+    break;
+  default:
+    // darf eigentlich nicht passieren...
+    _hardwareMode = 255;
+    break;
+  }
+
+#if BH1750_DEBUG == 1
+  Serial.print("hardware mode: ");
+  Serial.println(_hardwareMode, DEC);
+#endif
+
+  if(_hardwareMode==255) {
+    return false;
+  }
+
+  // Versuchen, den gewählten Hardwaremodus zu aktivieren
+  if(selectResolutionMode(_hardwareMode)){
+#if BH1750_DEBUG == 1
+    Serial.print("hardware mode defined successfully");
+    Serial.println(_hardwareMode, DEC);
+#endif
+    return true;
+  }
+
+  // Initialisierung fehlgeschlagen
+#if BH1750_DEBUG == 1
+  Serial.print("failure to aktivate hardware mode ");
+  Serial.println(_hardwareMode, DEC);
+#endif
+  _hardwareMode = 255;
+  return false;
+}
+
+/**
+ * Erlaub eine Prüfung, ob ein (ansprechbarer) BH1750-Sensor vorhanden ist.
+ */
+bool AS_BH1750A::isPresent() {
+  // Check I2C Adresse
+  Wire.beginTransmission(_address);
+  if(Wire.endTransmission()!=0) {
+    return false; 
+  }
+
+  // Check device: ist es ein BH1750
+  if(!isInitialized()) {
+    // zuvor inaktiv, daher zu Testen schnelltes einmal-Mode aktivieren
+    //write8(BH1750_POWER_ON);
+    selectResolutionMode(BH1750_ONE_TIME_LOW_RES_MODE);
+    delay(5);// Hier muss man in jedem Fall warten, daher die kurze Pause erstmal ok 
+    _hardwareMode=255;
+  } 
+  else {
+    // falls einmal-modus aktiv war, muss der Sensor geweckt werden
+    powerOn(); 
+    unsigned long dd = getModeDelay(); if(dd>0) {delay(dd);}
+    //delay(getModeDelay()); // s.o.
+  }
+
+  // Prüfen, ob Werte auch wirklich geliefert werden (letztes Modus, ggf. wird auto-PowerDown ausgeführt)
+  return (readLightLevel()>=0);
+}
+
+/**
+ * Weckt ein im PowerDown-Modus befindlichen Sensor auf (schadet auch dem 'wachen' Sensor nicht).
+ * Funktionier nur, wenn der Sensor bereits initialisiert wurde.
+ */
+void AS_BH1750A::powerOn() {
+  if(!isInitialized()) {
+#if BH1750_DEBUG == 1
+    Serial.println("sensor not initialized");
+#endif
+    return;
+  }
+
+  _valueReaded=false;
+  //write8(BH1750_POWER_ON); //
+  //fDelayPtr(10); // Nötig?
+  // Scheinbar reicht das Setzen von HardwareMode auch ohne PowerON-Befehl aus
+  selectResolutionMode(_hardwareMode); // letzten Modus wieder aktivieren
+}
+
+/**
+ * Schickt den Sensor in Stromsparmodus.
+ * Funktionier nur, wenn der Sensor bereits initialisiert wurde.
+ */
+void AS_BH1750A::powerDown() {
+  if(!isInitialized()) {
+#if BH1750_DEBUG == 1
+    Serial.println("sensor not initialized");
+#endif
+    return;
+  }
+
+  write8(BH1750_POWER_DOWN);
+}
+
+/**
+ * Sendet zum Sensor ein Befehl zum Auswahl von HardwareMode.
+ *
+ * Parameter:
+ * - mode: s.o. 
+ * - DelayFuncPtr: delay(n) Möglichkeit, eigene Delay-Funktion mitzugeben (z.B. um sleep-Modus zu verwenden).
+ * 
+ * Defaultwerte: delay()
+ *
+ */
+bool AS_BH1750A::selectResolutionMode(uint8_t mode) {
+#if BH1750_DEBUG == 1
+    Serial.print("selectResolutionMode: ");
+    Serial.println(mode, DEC);
+#endif
+  if(!isInitialized()) {
+    return false;
+#if BH1750_DEBUG == 1
+    Serial.println("sensor not initialized");
+#endif
+  }
+
+  _hardwareMode=mode;
+  _valueReaded=false;
+
+  // Prüfen, ob ein valides Modus vorliegt und im positiven Fall das gewünschte Modus aktivieren
+  switch (mode) {
+  case BH1750_CONTINUOUS_HIGH_RES_MODE:
+  case BH1750_CONTINUOUS_HIGH_RES_MODE_2:
+  case BH1750_CONTINUOUS_LOW_RES_MODE:
+  case BH1750_ONE_TIME_HIGH_RES_MODE:
+  case BH1750_ONE_TIME_HIGH_RES_MODE_2:
+  case BH1750_ONE_TIME_LOW_RES_MODE:
+    // Modus aktivieren
+    if(write8(mode)) {
+    // Kurze pause nötig, sonst wird das Modus nicht sicher Aktiviert
+    // (z.B. liefert Sensor im AutoHigh Modus abwechselnd übersteuerte Werte, etwa so: 54612.5, 68123.4, 54612.5, 69345.3,..)
+    //fDelayPtr(5); => Aufrufer soll 5ms extra warten
+      return true;
+    }
+    break;
+  default:
+    // Invalid measurement mode
+#if BH1750_DEBUG == 1
+    Serial.println("Invalid measurement mode");
+#endif
+    break;
+  }
+
+  return false;
+}
+
+/**
+ * Liefert aktuell gemessenen Wert für Helligkeit in lux (lx).
+ * Falls sich der Sensorf in Stromsparmodus befindet, wird er automatisch geweckt.
+ *
+ * Wurde der Sensor (noch) nicht initialisiert (begin), wird der Wert -1 geliefert.
+ */
+/*float AS_BH1750A::readLightLevel_alt(DelayFuncPtr fDelayPtr) {
+#if BH1750_DEBUG == 1
+    Serial.print("call: readLightLevel. virtualMode: ");
+    Serial.println(_virtualMode, DEC);
+#endif
+
+  if(!isInitialized()) {
+#if BH1750_DEBUG == 1
+    Serial.println("sensor not initialized");
+#endif
+    return -1;
+  }
+
+  // ggf. PowerOn  
+  if(_autoPowerDown && _valueReaded){
+    powerOn();
+    unsigned long dd = getModeDelay(); if(dd>0) {delay(dd);}
+  }
+
+  // Das Automatische Modus benötigt eine Sonderbehandlung.
+  // Zuerst wird die Helligkeit im LowRes-Modus gelesen, 
+  // je nach Bereich (dunkel, normal, sehr hell) werden die Werte von MTreg gesetzt und
+  // danach wird die eigentliche Messung vorgenommen.
+  
+  // Die feste Grenzwerte verursachen möglicherweise einen 'Sprung' in der Messkurve. 
+  // In diesem Fall wäre eine laufende Anpassung von MTreg in Grenzbereichen vermutlich besser.
+  // Für meine Zwecke ist das jedoch ohne Bedeutung.
+   
+  if(_virtualMode==RESOLUTION_AUTO_HIGH) {
+    defineMTReg(BH1750_MTREG_DEFAULT);
+    selectResolutionMode(BH1750_CONTINUOUS_LOW_RES_MODE);
+    //fDelayPtr(16+5); // Lesezeit in LowResMode
+    fDelayPtr(getModeDelay());
+    uint16_t level = readRawLevel();
+#if BH1750_DEBUG == 1
+    Serial.print("AutoHighMode: check level read: ");
+    Serial.println(level, DEC);
+#endif
+    if(level<10) {
+#if BH1750_DEBUG == 1
+    Serial.println("level 0: dark");
+#endif    
+      // Dunkel, Empfindlichkeit auf Maximum. 
+      // Der Wert ist zufällig. Ab ca. 16000 wäre diese Vorgehnsweise möglich.
+      // Ich brauche diese Genauigkeit aber nur in den ganz dunklen Bereichen (zu erkennen, wann wirklich 'dunkel' ist).
+      defineMTReg(BH1750_MTREG_MAX);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE_2:BH1750_CONTINUOUS_HIGH_RES_MODE_2);
+      //fDelayPtr(120*3.68+5); // TODO: Wert prüfen
+      fDelayPtr(getModeDelay());
+      //fDelayPtr(122);
+    }
+    else if(level<32767) {
+#if BH1750_DEBUG == 1
+    Serial.println("level 1: normal");
+#endif    
+      // Bis hierher reicht die 0,5 lx Modus. Normale Empfindlichkeit.
+      defineMTReg(BH1750_MTREG_DEFAULT);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE_2:BH1750_CONTINUOUS_HIGH_RES_MODE_2);
+      //fDelayPtr(120+5); // TODO: Wert prüfen
+      fDelayPtr(getModeDelay());
+    } 
+    else if(level<60000) {
+#if BH1750_DEBUG == 1
+    Serial.println("level 2: bright");
+#endif    
+      // hoher Bereich, 1 lx Modus, normale Empfindlichkeit. Der Wert von 60000 ist mehr oder weniger zufällig, es mus einfach ein hoher Wert, nah an der Grenze sein.
+      defineMTReg(BH1750_MTREG_DEFAULT);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE:BH1750_CONTINUOUS_HIGH_RES_MODE);
+      //fDelayPtr(120+5); // TODO: Wert prüfen
+      fDelayPtr(getModeDelay());
+    }
+    else {
+#if BH1750_DEBUG == 1
+    Serial.println("level 3: very bright");
+#endif    
+      // sehr hoher Bereich, Empfindlichkeit verringern
+      defineMTReg(32); // Min+1, bei dem Minimum aus Doku spielt der Sensor (zumindest meiner) verrückt: Die Werte sind ca. 1/10 von den Erwarteten.
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE:BH1750_CONTINUOUS_HIGH_RES_MODE);
+      //fDelayPtr(120+5); // TODO: Wert prüfen
+      fDelayPtr(getModeDelay());
+    }
+  } 
+
+  // Hardware Wert lesen und in Lux umrechnen.
+  uint16_t raw = readRawLevel();
+  if(raw==65535) {
+    // Wert verdächtig hoch. Sensor prüfen. 
+    // Check I2C Adresse
+    Wire.beginTransmission(_address);
+    if(Wire.endTransmission()!=0) {
+      return -1; 
+    }
+  }
+  return convertRawValue(raw);
+}*/
+
+/**
+ * Roh-Wert der Helligkeit auslesen. 
+ * Wertebereich 0-65535.
+ */
+uint16_t AS_BH1750A::readRawLevel(void) {
+  uint16_t level;
+  Wire.beginTransmission(_address);
+  Wire.requestFrom(_address, 2);
+#if (ARDUINO >= 100)
+  level = Wire.read();
+  level <<= 8;
+  level |= Wire.read();
+#else
+  level = Wire.receive();
+  level <<= 8;
+  level |= Wire.receive();
+#endif
+  if(Wire.endTransmission()!=0) {
+#if BH1750_DEBUG == 1
+    Serial.println("I2C read error");
+#endif
+    return 65535; // Error marker
+  }
+
+#if BH1750_DEBUG == 1
+  Serial.print("Raw light level: ");
+  Serial.println(level);
+#endif
+
+  _valueReaded=true;
+
+  return level;
+}
+
+/**
+ * Rechnet Roh-Werte in Lux um.
+ */
+float AS_BH1750A::convertRawValue(uint16_t raw) {
+  // Basisumrechnung
+  float flevel = raw/1.2;
+
+#if BH1750_DEBUG == 1
+  Serial.print("convert light level (1): ");
+  Serial.println(flevel);
+#endif
+
+  // MTreg-Einfluss berechnen
+  if(_MTreg!=BH1750_MTREG_DEFAULT) { // bei 69 ist der Faktor = 1
+    flevel = flevel * _MTregFactor;
+#if BH1750_DEBUG == 1
+    Serial.print("convert light level (2): ");
+    Serial.println(flevel);
+#endif
+  }
+
+  // je nach Modus ist eine weitere Umrechnung nötig
+  switch (_hardwareMode) {
+  case BH1750_CONTINUOUS_HIGH_RES_MODE_2:
+  case BH1750_ONE_TIME_HIGH_RES_MODE_2:
+    flevel = flevel/2;
+#if BH1750_DEBUG == 1
+    Serial.print("convert light level (3): ");
+    Serial.println(flevel);
+#endif
+    break;
+  default:
+    // nothing to do
+    break;
+  }
+
+#if BH1750_DEBUG == 1
+  Serial.print("Light level: ");
+  Serial.println(flevel);
+#endif
+
+  return flevel;
+}
+
+/**
+ * MTreg setzen. Definiert Empfindlichkeit des Sensors.
+ * Min.Wert (BH1750_MTREG_MIN) =  31 (Empfindlichkeit: default*0,45)
+ * Max.Wert (BH1750_MTREG_MAX) = 254 (Empfindlichkeit: default*3,68)
+ * Default (BH1750_MTREG_DEFAULT) = 69.
+ * Mit der Empfindlichkeit verändert sich die Lesezeit (höhere Empfindlichkeit bedeutet längere Zeitspanne).
+ */
+void AS_BH1750A::defineMTReg(uint8_t val) {
+  if(val<BH1750_MTREG_MIN) {
+    val = BH1750_MTREG_MIN;
+  }
+  if(val>BH1750_MTREG_MAX) {
+    val = BH1750_MTREG_MAX;
+  }
+  if(val!=_MTreg) {
+    _MTreg = val;
+    _MTregFactor = (float)BH1750_MTREG_DEFAULT / _MTreg;
+
+    // Change Measurement time
+    // Übertragung in zwei Schritten: 3 Bit und 5 Bit, jeweils mit einem Prefix.
+    //   High bit: 01000_MT[7,6,5]
+    //   Low bit:  011_MT[4,3,2,1,0]
+    uint8_t hiByte = val>>5;
+    hiByte |= 0b01000000;
+#if BH1750_DEBUG == 1
+    Serial.print("MGTreg high byte: ");
+    Serial.println(hiByte, BIN);
+#endif
+    write8(hiByte);
+    //fDelayPtr(10);
+    // Pause nötig?
+    uint8_t loByte = val&0b00011111;
+    loByte |= 0b01100000;
+#if BH1750_DEBUG == 1
+    Serial.print("MGTreg low byte: ");
+    Serial.println(loByte, BIN);
+#endif
+    write8(hiByte);
+    //fDelayPtr(10);
+  }
+}
+
+/**
+ * Gibt an, ob der Sensor initialisiert ist.
+ */
+bool AS_BH1750A::isInitialized() {
+  return _hardwareMode!=255; 
+}
+
+/**
+ * Schreibt ein Byte auf I2C Bus (auf die Adresse des Sensors).
+ */
+bool AS_BH1750A::write8(uint8_t d) {
+  Wire.beginTransmission(_address);
+#if (ARDUINO >= 100)
+  Wire.write(d);
+#else
+  Wire.send(d);
+#endif
+  return (Wire.endTransmission()==0);
+}
+
+
+float AS_BH1750A::readLightLevel(DelayFuncPtr fDelayPtr, TimeFuncPtr fTimePtr) {
+  startMeasurementAsync(fTimePtr);
+  while(!isMeasurementReady()) {
+    fDelayPtr(_nextDelay);
+  }
+  return readLightLevelAsync();
+}
+
+/*float AS_BH1750A::checkAndReadLightLevelAsync(TimeFuncPtr fTimePtr) {
+  //Serial.print("--stage: ");
+  //Serial.println(_stage);
+  if(_stage==0 || _stage>=100) {
+    if(startMeasurementAsync(fTimePtr)) return -100;
+    return -1; // Marker "nicht vorhanden"
+  } else if(_stage==99) {
+    _stage=100;
+    return readLightLevelAsync();
+  }
+  return readLightLevelAsync();
+}*/
+
+unsigned long AS_BH1750A::nextDelay(void) {
+  return _nextDelay;
+}
+//void AS_BH1750A::reset(void) {
+//_stage==0;
+//}
+
+bool AS_BH1750A::startMeasurementAsync(TimeFuncPtr fTimePtr) {
+  _fTimePtr = fTimePtr;
+  _stage = 0;
+  _nextDelay = 0;
+  int _lastResult = -1;
+  _lastTimestamp=fTimePtr();
+  return readLightLevelAsync()!=-1;
+}
+
+bool AS_BH1750A::isMeasurementReady(void) {
+  return readLightLevelAsync() >= -1; // -1 ist 'not initialized'-Marker (prevent hangs)
+}
+
+bool AS_BH1750A::delayExpired() {
+  unsigned long timestamp = _fTimePtr();
+
+  // Zeitdifferenz
+  unsigned long delayTime = 0;
+  // Auf Ueberlauf pruefen
+  if (timestamp < _lastTimestamp)
+  {
+    // Ueberlauf: Delay ist Zeit zum MaxWert plus Zeit ab Null
+    delayTime = MAX_U_LONG - _lastTimestamp + timestamp;
+  } else {
+    // Kein Ueberlauf: einfache Differenz
+    delayTime = timestamp - _lastTimestamp;
+  }
+
+  return (delayTime >= _nextDelay);
+}
+
+float AS_BH1750A::readLightLevelAsync() {
+  if(_stage>=99) return _lastResult;
+  
+  if(_stage==0) {
+    #if BH1750_DEBUG == 1
+      Serial.print("call: readLightLevel. virtualMode: ");
+      Serial.println(_virtualMode, DEC);
+    #endif
+
+    if(!isInitialized()) {
+    #if BH1750_DEBUG == 1
+      Serial.println("sensor not initialized");
+    #endif
+      return -1;
+    }
+
+    // ggf. PowerOn  
+    if(_autoPowerDown && _valueReaded){
+      powerOn();
+      _nextDelay = getModeDelay();
+      // TEST delay(getModeDelay());_stage=99;
+      return -100;
+    } else {
+      _nextDelay = 0;
+    }
+    _stage++;
+
+  }
+  
+  // Das Automatische Modus benötigt eine Sonderbehandlung.
+  // Zuerst wird die Helligkeit im LowRes-Modus gelesen, 
+  // je nach Bereich (dunkel, normal, sehr hell) werden die Werte von MTreg gesetzt und
+  // danach wird die eigentliche Messung vorgenommen.
+  /*
+     Die feste Grenzwerte verursachen möglicherweise einen 'Sprung' in der Messkurve. 
+   In diesem Fall wäre eine laufende Anpassung von MTreg in Grenzbereichen vermutlich besser.
+   Für meine Zwecke ist das jedoch ohne Bedeutung.
+   */
+  if(_virtualMode==RESOLUTION_AUTO_HIGH) {
+    selectAutoMode();
+  } else {
+    if(delayExpired()) {_stage=99;} // Fertig
+  }
+  if(_stage<99) return -100; // Marker: wait for next step
+
+  // Hardware Wert lesen und in Lux umrechnen.
+  uint16_t raw = readRawLevel();
+  if(raw==65535) {
+    // Wert verdächtig hoch. Sensor prüfen. 
+    // Check I2C Adresse
+    Wire.beginTransmission(_address);
+    if(Wire.endTransmission()!=0) {
+      return -1; 
+    }
+  }
+  
+  _lastResult = convertRawValue(raw);
+  return _lastResult;
+}
+
+void AS_BH1750A::selectAutoMode() {
+
+  //if(!delayExpired()) return;
+   
+  if(_stage==1) {   
+    defineMTReg(BH1750_MTREG_DEFAULT);
+    selectResolutionMode(BH1750_CONTINUOUS_LOW_RES_MODE);
+    //fDelayPtr(16+5); // Lesezeit in LowResMode
+    //fDelayPtr(getModeDelay());
+    _nextDelay=getModeDelay();
+    _stage++;
+    return;
+  }
+  
+  if(!delayExpired()) return;
+
+  if(_stage==2) {
+    uint16_t level = readRawLevel();
+    #if BH1750_DEBUG == 1
+    Serial.print("AutoHighMode: check level read: ");
+    Serial.println(level, DEC);
+    #endif
+    if(level<10) {
+    #if BH1750_DEBUG == 1
+    Serial.println("level 0: dark");
+    #endif    
+      // Dunkel, Empfindlichkeit auf Maximum. 
+      // Der Wert ist zufällig. Ab ca. 16000 wäre diese Vorgehnsweise möglich.
+      // Ich brauche diese Genauigkeit aber nur in den ganz dunklen Bereichen (zu erkennen, wann wirklich 'dunkel' ist).
+      defineMTReg(BH1750_MTREG_MAX);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE_2:BH1750_CONTINUOUS_HIGH_RES_MODE_2);
+      //fDelayPtr(120*3.68+5); // TODO: Wert prüfen
+      //fDelayPtr(getModeDelay());
+      _nextDelay=getModeDelay();
+      //fDelayPtr(122);
+    } else if(level<32767) {
+    #if BH1750_DEBUG == 1
+    Serial.println("level 1: normal");
+    #endif    
+      // Bis hierher reicht die 0,5 lx Modus. Normale Empfindlichkeit.
+      defineMTReg(BH1750_MTREG_DEFAULT);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE_2:BH1750_CONTINUOUS_HIGH_RES_MODE_2);
+      //fDelayPtr(120+5); // TODO: Wert prüfen
+      //fDelayPtr(getModeDelay());
+      _nextDelay=getModeDelay();
+    } else if(level<60000) {
+    #if BH1750_DEBUG == 1
+    Serial.println("level 2: bright");
+    #endif    
+      // hoher Bereich, 1 lx Modus, normale Empfindlichkeit. Der Wert von 60000 ist mehr oder weniger zufällig, es mus einfach ein hoher Wert, nah an der Grenze sein.
+      defineMTReg(BH1750_MTREG_DEFAULT);
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE:BH1750_CONTINUOUS_HIGH_RES_MODE);
+      //fDelayPtr(120+5); // TODO: Wert prüfen
+      //fDelayPtr(getModeDelay());
+      _nextDelay=getModeDelay();
+    } else {
+    #if BH1750_DEBUG == 1
+    Serial.println("level 3: very bright");
+    #endif    
+      // sehr hoher Bereich, Empfindlichkeit verringern
+      defineMTReg(32); // Min+1, bei dem Minimum aus Doku spielt der Sensor (zumindest meiner) verrückt: Die Werte sind ca. 1/10 von den Erwarteten.
+      selectResolutionMode(_autoPowerDown?BH1750_ONE_TIME_HIGH_RES_MODE:BH1750_CONTINUOUS_HIGH_RES_MODE);
+      //fDelayPtr(120+5); // TODO: Wert prüfen
+      //fDelayPtr(getModeDelay());
+      _nextDelay=getModeDelay();
+    }
+    
+    _stage++;
+    return;
+  }
+    
+  _stage = 99; // fertig
+
+}
+
+unsigned long AS_BH1750A::getModeDelay() {
+
+  float ml;
+  
+  if(_MTreg<=BH1750_MTREG_MIN+1) { ml = 0.45; }
+  else if(_MTreg<=BH1750_MTREG_DEFAULT+1) { ml = 1.0; }
+  else { ml = 3.68; }
+  
+  switch (_hardwareMode) {
+  case BH1750_CONTINUOUS_HIGH_RES_MODE:
+  case BH1750_ONE_TIME_HIGH_RES_MODE:
+    return ml*120+5;
+    
+  case BH1750_ONE_TIME_HIGH_RES_MODE_2:
+  case BH1750_CONTINUOUS_HIGH_RES_MODE_2:
+    return ml*120+5;
+    
+  case BH1750_CONTINUOUS_LOW_RES_MODE:
+  case BH1750_ONE_TIME_LOW_RES_MODE:
+    return ml*16+5;
+  
+  default:
+    return 0;
+  }
+
+}

lib/AS_BH1750/AS_BH1750A.h

@@ -0,0 +1,207 @@
+/*
+ This is a (Arduino) library for the BH1750FVI Digital Light Sensor.
+ 
+ Description:
+ http://www.rohm.com/web/global/products/-/product/BH1750FVI
+ 
+ Datasheet:
+ http://rohmfs.rohm.com/en/products/databook/datasheet/ic/sensor/light/bh1750fvi-e.pdf
+ 
+ Copyright (c) 2013 Alexander Schulz.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the GNU
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA	 02110-1301	 USA
+ */
+
+#ifndef AS_BH1750A_h
+#define AS_BH1750A_h
+
+#if (ARDUINO >= 100)
+#include <Arduino.h>
+#else
+#include <WProgram.h>
+#endif
+#include "Wire.h"
+
+// Mögliche I2C Adressen
+#define BH1750_DEFAULT_I2CADDR 0x23
+#define BH1750_SECOND_I2CADDR 0x5C
+
+// MTreg Werte
+// Default
+#define BH1750_MTREG_DEFAULT 69
+// Sensitivity : default = 0.45
+#define BH1750_MTREG_MIN 31
+// Sensitivity : default = 3.68
+#define BH1750_MTREG_MAX 254
+
+// Hardware Modi
+// No active state
+#define BH1750_POWER_DOWN 0x00
+
+// Wating for measurment command
+#define BH1750_POWER_ON 0x01
+
+// Reset data register value - not accepted in POWER_DOWN mode
+#define BH1750_RESET 0x07
+
+// Start measurement at 1lx resolution. Measurement time is approx 120ms.
+#define BH1750_CONTINUOUS_HIGH_RES_MODE  0x10
+
+// Start measurement at 0.5lx resolution. Measurement time is approx 120ms.
+#define BH1750_CONTINUOUS_HIGH_RES_MODE_2  0x11
+
+// Start measurement at 4lx resolution. Measurement time is approx 16ms.
+#define BH1750_CONTINUOUS_LOW_RES_MODE  0x13
+
+// Start measurement at 1lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_HIGH_RES_MODE  0x20
+
+// Start measurement at 0.5lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_HIGH_RES_MODE_2  0x21
+
+// Start measurement at 1lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_LOW_RES_MODE  0x23
+
+#define MAX_U_LONG 4294967295;
+
+/** Virtual Modi */
+typedef enum
+{
+  RESOLUTION_LOW         = (1), /** 4lx resolution. Measurement time is approx 16ms. */  
+  RESOLUTION_NORMAL      = (2), /** 1lx resolution. Measurement time is approx 120ms. */
+  RESOLUTION_HIGH        = (3), /** 0,5lx resolution. Measurement time is approx 120ms. */
+  RESOLUTION_AUTO_HIGH   = (99) /** 0,11-1lx resolution. Measurement time is above 250ms. */
+  }  
+  sensors_resolution_t;
+
+typedef void (*DelayFuncPtr)(unsigned long);
+typedef unsigned long (*TimeFuncPtr)(void);
+
+/**
+ * BH1750 driver class.
+ */
+class AS_BH1750A {
+public:
+  /**
+   * Constructor.
+   * Erlaubt die I2C-Adresse des Sensors zu ändern. 
+   * Standardadresse: 0x23, Alternativadresse: 0x5C. 
+   * Es sind entsprechende Konstanten definiert: BH1750_DEFAULT_I2CADDR  und BH1750_SECOND_I2CADDR.
+   * Bei Nichtangabe wird die Standardadresse verwendet. 
+   * Um die Alternativadresse zu nutzen, muss der Sensorpin 'ADR' des Chips auf VCC gelegt werden.
+   */
+  AS_BH1750A(uint8_t address = BH1750_DEFAULT_I2CADDR);
+
+  /**
+   * Führt die anfängliche Initialisierung des Sensors.
+   * Mögliche Parameter: 
+   *  - Modus für die Sensorauflösung:
+   *    -- RESOLUTION_LOW:         Physische Sensormodus mit 4 lx Auflösung. Messzeit ca. 16ms. Bereich 0-54612.
+   *    -- RESOLUTION_NORMAL:      Physische Sensormodus mit 1 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+   *    -- RESOLUTION_HIGH:        Physische Sensormodus mit 0,5 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+   *                               (Die Messbereiche können durch Änderung des MTreg verschoben werden.)
+   *    -- RESOLUTION_AUTO_HIGH:   Die Werte im MTreg werden je nach Helligkeit automatisch so angepasst, 
+   *                               dass eine maximalmögliche Auflösung und Messbereich erziehlt werden.
+   *                               Die messbaren Werte fangen von 0,11 lx und gehen bis über 100000 lx.
+   *                               (ich weis nicht, wie genau die Werte in Grenzbereichen sind, 
+   *                               besonders bei hohen Werte habe ich meine Zweifel.)
+   *                               Auflösung im Unteren Bereich 0,13 lx, im mittleren 0,5 lx, im oberen 1-2 lx.
+   *                               Die Messzeiten verlängern sich durch mehrfache Messungen und 
+   *                               die Änderungen von Measurement Time (MTreg) bis max. ca. 500 ms.
+   *   
+   * - AutoPowerDown: true = Der Sensor wird nach der Messung in den Stromsparmodus versetzt. 
+   *   Das spätere Aufwecken wird ggf. automatisch vorgenommen, braucht jedoch geringfügig mehr Zeit.
+   *
+   * Defaultwerte: RESOLUTION_AUTO_HIGH, true, delay()
+   *
+   */
+  bool begin(sensors_resolution_t mode = RESOLUTION_AUTO_HIGH, bool autoPowerDown = true);
+
+  /**
+   * Erlaub eine Prüfung, ob ein (ansprechbarer) BH1750-Sensor vorhanden ist.
+   */
+  bool isPresent(void);
+
+  /**
+   * Liefert aktuell gemessenen Wert für Helligkeit in lux (lx).
+   * Falls sich der Sensorf in Stromsparmodus befindet, wird er automatisch geweckt.
+   *
+   * Wurde der Sensor (noch) nicht initialisiert (begin), wird der Wert -1 geliefert.
+   *
+   * Mögliche Parameter: 
+   *
+   * - DelayFuncPtr: delay(n) Möglichkeit, eigene Delay-Funktion mitzugeben (z.B. um sleep-Modus zu verwenden).
+   * 
+   * Defaultwerte: delay()
+   *
+   */
+  float readLightLevel(DelayFuncPtr fDelayPtr = &delay, TimeFuncPtr fTimePtr = &millis);
+
+  bool startMeasurementAsync(TimeFuncPtr fTimePtr = &millis);
+  bool isMeasurementReady(void);
+  float readLightLevelAsync();
+  
+  //float checkAndReadLightLevelAsync(TimeFuncPtr fTimePtr);
+
+  //void reset(void);
+  unsigned long nextDelay(void);
+
+  /**
+   * Schickt den Sensor in Stromsparmodus.
+   * Funktionier nur, wenn der Sensor bereits initialisiert wurde.
+   */
+  void powerDown(void);
+
+//bool delayExpired(); // TEST
+
+private:
+  int _address;
+  uint8_t _hardwareMode;
+
+  uint8_t _MTreg;
+  float _MTregFactor;
+
+  sensors_resolution_t _virtualMode;
+  bool _autoPowerDown;
+
+  bool _valueReaded;
+
+  bool selectResolutionMode(uint8_t mode);
+  void defineMTReg(uint8_t val);
+  void powerOn();
+  //void reset(void);
+  uint16_t readRawLevel(void);
+  float convertRawValue(uint16_t raw);
+  bool isInitialized();
+  bool write8(uint8_t data);
+  
+  TimeFuncPtr _fTimePtr;
+  int _stage = 0;
+  int _nextDelay = 0;
+  int _lastTimestamp = 0;
+  float _lastResult = -100;
+  bool delayExpired();
+  void selectAutoMode();
+  
+  // TEST
+  //float readLightLevel_alt(DelayFuncPtr fDelayPtr = &delay);
+  unsigned long getModeDelay();
+  
+};
+
+#endif

lib/AS_BH1750/LICENSE

@@ -0,0 +1,502 @@
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+
+  If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+    a (Arduino) library for the BH1750FVI Digital Light Sensor
+    Copyright (C) 2013  Alex Hexenmeister
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  {signature of Ty Coon}, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!

lib/AS_BH1750/README.md

@@ -0,0 +1,37 @@
+AS_BH1750
+=========
+
+a (Arduino) library for the BH1750FVI Digital Light Sensor.
+
+(http://s6z.de/joomla3/index.php/arduino/sensoren/15-umgebungslichtsensor-bh1750)
+
+
+Features:
+
+ - unterstützt beide möglichen I2C-Adressen des Sensors:
+   Standardadresse: 0x23, Alternativadresse: 0x5C. 
+   Es sind entsprechende Konstanten definiert: BH1750_DEFAULT_I2CADDR und BH1750_SECOND_I2CADDR.
+ 
+ - alle Hardware-Auflösungsmodi:
+   * RESOLUTION_LOW:         Physische Sensormodus mit 4 lx Auflösung. Messzeit ca. 16ms. Bereich 0-54612. 
+   * RESOLUTION_NORMAL:      Physische Sensormodus mit 1 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+   * RESOLUTION_HIGH:        Physische Sensormodus mit 0,5 lx Auflösung. Messzeit ca. 120ms. Bereich 0-54612.
+
+ - Virtueller Modus:
+   * RESOLUTION_AUTO_HIGH:   Die Werte im MTreg ('Measurement Time'-Register) werden je nach Helligkeit 
+                              automatisch so angepasst, dass eine maximalmögliche Auflösung 
+                              und Messbereich erziehlt werden.
+                              Die messbaren Werte fangen von 0,11 lx und gehen bis über 100000 lx.
+                              (ich weis nicht, wie genau die Werte in Grenzbereichen sind, 
+                              besonders bei hohen Werte habe ich da meine Zweifel. 
+                              Die Werte scheinen jedoch weitgehend linear mit der steigenden Helligkeit zu wachsen.)
+                              Auflösung im Unteren Bereich ca. 0,13 lx, im mittleren 0,5 lx, im oberen etwa 1-2 lx.
+                              Die Messzeiten verlängern sich durch mehrfache Messungen und 
+                              die Änderungen von Measurement Time (MTreg) bis max. ca. 500 ms.
+ 
+ - Methode zur Änderung von 'Measurement Time'-Registers. Damit kann die Empfindlichkeit beeinflusst werden.
+ 
+ - auto power down: Der Sensor wird nach der Messung in den Stromsparmodus versetzt. 
+   Das spätere Aufwecken wird ggf. automatisch vorgenommen, braucht jedoch geringfügig mehr Zeit.
+
+ Defaultwerte: Modus = RESOLUTION_AUTO_HIGH, AutoPowerDown = true

lib/AS_BH1750/examples/BH1750Simple/BH1750Simple.ino

@@ -0,0 +1,68 @@
+/*
+ *  Example of AS_BH1750 library usage.
+ *  
+ *  This example initalises the BH1750 object using the default
+ *  adaptive auto-high-resolution mode and then makes 
+ *  a light level reading about every second.
+ *  (the sensitivity and resolution are automatically adapted 
+ *  the current light conditions)
+ *  
+ *  Wiring:
+ *  VCC-5v
+ *  GND-GND
+ *  SCL-SCL(analog pin 5)
+ *  SDA-SDA(analog pin 4)
+ *  ADD-NC or GND
+ *
+ *  Copyright (c) 2013 Alexander Schulz.  All right reserved.
+ *  
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <Wire.h>
+#include <AS_BH1750.h>
+
+AS_BH1750 sensor;
+
+void setup(){
+  Serial.begin(9600);
+  delay(50);
+  
+  // for normal sensor resolution (1 lx resolution, 0-65535 lx, 120ms, no PowerDown) use: sensor.begin(RESOLUTION_NORMAL, false);
+  // Initialize sensor. if sensor is not present, false is returned
+  if(sensor.begin()) {
+    Serial.println("Sensor initialized");
+  } 
+  else {
+    Serial.println("Sensor not present");
+  }
+  
+  /*
+  // to check the sensor present
+  if(sensor.isPresent()) {
+    Serial.println("Sensor present");
+  } 
+  else {
+    Serial.println("Sensor not present");
+  }*/
+}
+
+void loop() {
+  float lux = sensor.readLightLevel();
+  Serial.print("Light level: ");
+  Serial.print(lux);
+  Serial.println(" lx");
+  delay(1000);
+}
+

lib/AS_BH1750/examples/LightMeter_LCD/LightMeter_LCD.ino

@@ -0,0 +1,96 @@
+#include <Wire.h>
+#include <AS_BH1750.h>
+#include <LiquidCrystal.h>
+
+/* 
+ * LightMeter_LCD
+ * 
+ * Version 1.2
+ * Datum: 05.08.2013
+ * 
+ * Das Programm benutzt den BH1750 (Umgebiungslichtsensor)
+ * und zeigt die Werte in Lux auf einem 16x2-Symbol-LCD.
+ * 
+ * Verdrahtung (UNO, Nano...)
+ * 
+ * BH1750:
+ *     Sensor SCL pin an A5
+ *     Sensor SDA pin an A4
+ *     Sensor VDD pin an 5V
+ *     Sensor GND pin an GND
+ *     Sensor ADDR pin frei
+ *  
+ * LCD in 4-Bit-Modus:
+ *     LCD RS pin an digital pin 8
+ *     LCD RW pin an digital pin 13
+ *     LCD Enable pin an digital pin 9
+ *     LCD D4 pin an digital pin 4
+ *     LCD D5 pin an digital pin 5
+ *     LCD D6 pin an digital pin 6
+ *     LCD D7 pin an digital pin 7
+ * 
+ *
+ *   Copyright (c) 2013 Alexander Schulz.  All right reserved.
+ *  
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ * 
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+AS_BH1750 lightMeter;
+
+// Setup LCD-Shield
+LiquidCrystal lcd(8, 13, 9, 4, 5, 6, 7);
+
+void setup() {
+  // Display initialisieren
+  lcd.clear(); 
+  lcd.begin(16, 2); // 16x2 Zeichen
+  lcd.setCursor(0,0); 
+  lcd.print("LightMeter v1.0"); 
+  lcd.setCursor(0,1); 
+  lcd.print("Initializing..."); 
+  delay(1000);
+  lcd.clear();
+
+  if(!lightMeter.begin()){
+    // Prüfen, ob Sensor vorhanden ist
+    lcd.clear();
+    lcd.setCursor(0,0); 
+    lcd.print("BH1750 not found");
+    lcd.setCursor(0,1); 
+    lcd.print("check wiring!");
+    while (1) {
+      delay(1000);
+    }
+  }
+
+}
+
+void loop() {
+  char clux[9];
+
+  // Werte auslesen und aufbereiten
+  float lux = lightMeter.readLightLevel();
+  dtostrf(lux, 8, 1, clux);
+
+  lcd.setCursor(0,0); 
+  lcd.print("Light level: ");
+  lcd.setCursor(5,1); 
+  lcd.print(clux);
+  lcd.print(" lx");
+
+  delay(500);
+}
+
+
+

lib/AS_BH1750/keywords.txt

@@ -0,0 +1,30 @@
+#######################################
+# Syntax Coloring Map For BH1750
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+AS_BH1750            KEYWORD1
+sensors_resolution_t KEYWORD1
+
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+begin          KEYWORD2
+isPresent      KEYWORD2
+readLightLevel KEYWORD2
+powerDown      KEYWORD2
+
+
+#######################################
+# Instances (KEYWORD2)
+#######################################
+
+
+#######################################
+# Constants (LITERAL1)
+#######################################

lib/Adafruit Motor Shield V2/.library.json

@@ -1,47 +0,0 @@
-{
-    "description": "Library for the Adafruit Motor Shield V2 for Arduino. It supports DC motors & stepper motors with microstepping as well as stacking-support.", 
-    "repository": {
-        "url": "https://github.com/adafruit/Adafruit_Motor_Shield_V2_Library", 
-        "type": "git"
-    }, 
-    "platforms": [
-        "atmelavr", 
-        "atmelsam", 
-        "espressif8266", 
-        "intel_arc32", 
-        "microchippic32", 
-        "nordicnrf51", 
-        "teensy", 
-        "timsp430"
-    ], 
-    "export": {
-        "exclude": [
-            "extras", 
-            "docs", 
-            "tests", 
-            "test", 
-            "*.doxyfile", 
-            "*.pdf"
-        ], 
-        "include": null
-    }, 
-    "authors": [
-        {
-            "maintainer": true, 
-            "name": "Adafruit", 
-            "url": null, 
-            "email": "info@adafruit.com"
-        }
-    ], 
-    "keywords": [
-        "device", 
-        "control"
-    ], 
-    "id": 783, 
-    "name": "Adafruit Motor Shield V2 Library", 
-    "frameworks": [
-        "arduino"
-    ], 
-    "version": "1.0.4", 
-    "homepage": null
-}

lib/Adafruit_Motor_Shield_V2/.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,46 @@
+Thank you for opening an issue on an Adafruit Arduino library repository.  To
+improve the speed of resolution please review the following guidelines and
+common troubleshooting steps below before creating the issue:
+
+- **Do not use GitHub issues for troubleshooting projects and issues.**  Instead use
+  the forums at http://forums.adafruit.com to ask questions and troubleshoot why
+  something isn't working as expected.  In many cases the problem is a common issue
+  that you will more quickly receive help from the forum community.  GitHub issues
+  are meant for known defects in the code.  If you don't know if there is a defect
+  in the code then start with troubleshooting on the forum first.
+
+- **If following a tutorial or guide be sure you didn't miss a step.** Carefully
+  check all of the steps and commands to run have been followed.  Consult the
+  forum if you're unsure or have questions about steps in a guide/tutorial.
+
+- **For Arduino projects check these very common issues to ensure they don't apply**:
+
+  - For uploading sketches or communicating with the board make sure you're using
+    a **USB data cable** and **not** a **USB charge-only cable**.  It is sometimes
+    very hard to tell the difference between a data and charge cable!  Try using the
+    cable with other devices or swapping to another cable to confirm it is not
+    the problem.
+
+  - **Be sure you are supplying adequate power to the board.**  Check the specs of
+    your board and plug in an external power supply.  In many cases just
+    plugging a board into your computer is not enough to power it and other
+    peripherals.
+
+  - **Double check all soldering joints and connections.**  Flakey connections
+    cause many mysterious problems.  See the [guide to excellent soldering](https://learn.adafruit.com/adafruit-guide-excellent-soldering/tools) for examples of good solder joints.
+
+  - **Ensure you are using an official Arduino or Adafruit board.** We can't
+    guarantee a clone board will have the same functionality and work as expected
+    with this code and don't support them.
+
+If you're sure this issue is a defect in the code and checked the steps above
+please fill in the following fields to provide enough troubleshooting information.
+You may delete the guideline and text above to just leave the following details:
+
+- Arduino board:  **INSERT ARDUINO BOARD NAME/TYPE HERE**
+
+- Arduino IDE version (found in Arduino -> About Arduino menu):  **INSERT ARDUINO
+  VERSION HERE**
+
+- List the steps to reproduce the problem below (if possible attach a sketch or
+  copy the sketch code in too): **LIST REPRO STEPS BELOW**

lib/Adafruit_Motor_Shield_V2/.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,26 @@
+Thank you for creating a pull request to contribute to Adafruit's GitHub code!
+Before you open the request please review the following guidelines and tips to
+help it be more easily integrated:
+
+- **Describe the scope of your change--i.e. what the change does and what parts
+  of the code were modified.**  This will help us understand any risks of integrating
+  the code.
+
+- **Describe any known limitations with your change.**  For example if the change
+  doesn't apply to a supported platform of the library please mention it.
+
+- **Please run any tests or examples that can exercise your modified code.**  We
+  strive to not break users of the code and running tests/examples helps with this
+  process.
+
+Thank you again for contributing!  We will try to test and integrate the change
+as soon as we can, but be aware we have many GitHub repositories to manage and
+can't immediately respond to every request.  There is no need to bump or check in
+on a pull request (it will clutter the discussion of the request).
+
+Also don't be worried if the request is closed or not integrated--sometimes the
+priorities of Adafruit's GitHub code (education, ease of use) might not match the
+priorities of the pull request.  Don't fret, the open source community thrives on
+forks and GitHub makes it easy to keep your changes in a forked repo.
+
+After reviewing the guidelines above you can delete this text from the pull request.

lib/Adafruit_Motor_Shield_V2/Adafruit_MotorShield.cpp

@@ -234,6 +234,7 @@ void Adafruit_StepperMotor::step(uint16_t steps, uint8_t dir,  uint8_t style) {
     //Serial.println("step!"); Serial.println(uspers);
     ret = onestep(dir, style);
     delayMicroseconds(uspers);
+    yield(); // required for ESP8266
   }
 }
 

lib/Adafruit_Motor_Shield_V2/README.md

@@ -10,18 +10,20 @@ It will only work with https://www.adafruit.com/products/1438
 
 ## Compatibility
 
-MCU               | Tested Works | Doesn't Work | Not Tested  | Notes
------------------ | :----------: | :----------: | :---------: | -----
-Atmega328 @ 16MHz |      X       |             |            | 
-Atmega328 @ 12MHz |      X       |             |            | 
+MCU                | Tested Works | Doesn't Work | Not Tested  | Notes
+------------------ | :----------: | :----------: | :---------: | -----
+Atmega328 @ 16MHz  |      X       |             |            | 
+Atmega328 @ 12MHz  |      X       |             |            | 
 Atmega32u4 @ 16MHz |      X       |             |            | 
-Atmega32u4 @ 8MHz |      X       |             |            | 
-ESP8266           |             |             |     X       | 
+Atmega32u4 @ 8MHz  |      X       |             |            | 
+ESP8266            |             |             |     X       | 
 Atmega2560 @ 16MHz |      X       |             |            | 
-ATSAM3X8E         |             |      X       |            | 
-ATSAM21D          |             |      X       |            | 
-ATtiny85 @ 16MHz  |             |             |     X       | 
-ATtiny85 @ 8MHz   |             |             |     X       | 
+ATSAM3X8E          |             |      X       |            | 
+ATSAM21D           |             |      X       |            | 
+ATtiny85 @ 16MHz   |             |             |     X       | 
+ATtiny85 @ 8MHz    |             |             |     X       | 
+Intel Curie @ 32MHz |             |             |     X       | 
+STM32F2            |             |             |     X       | 
 
   * ATmega328 @ 16MHz : Arduino UNO, Adafruit Pro Trinket 5V, Adafruit Metro 328, Adafruit Metro Mini
   * ATmega328 @ 12MHz : Adafruit Pro Trinket 3V

lib/Adafruit_NeoPixel/.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,46 @@
+Thank you for opening an issue on an Adafruit Arduino library repository.  To
+improve the speed of resolution please review the following guidelines and
+common troubleshooting steps below before creating the issue:
+
+- **Do not use GitHub issues for troubleshooting projects and issues.**  Instead use
+  the forums at http://forums.adafruit.com to ask questions and troubleshoot why
+  something isn't working as expected.  In many cases the problem is a common issue
+  that you will more quickly receive help from the forum community.  GitHub issues
+  are meant for known defects in the code.  If you don't know if there is a defect
+  in the code then start with troubleshooting on the forum first.
+
+- **If following a tutorial or guide be sure you didn't miss a step.** Carefully
+  check all of the steps and commands to run have been followed.  Consult the
+  forum if you're unsure or have questions about steps in a guide/tutorial.
+
+- **For Arduino projects check these very common issues to ensure they don't apply**:
+
+  - For uploading sketches or communicating with the board make sure you're using
+    a **USB data cable** and **not** a **USB charge-only cable**.  It is sometimes
+    very hard to tell the difference between a data and charge cable!  Try using the
+    cable with other devices or swapping to another cable to confirm it is not
+    the problem.
+
+  - **Be sure you are supplying adequate power to the board.**  Check the specs of
+    your board and plug in an external power supply.  In many cases just
+    plugging a board into your computer is not enough to power it and other
+    peripherals.
+
+  - **Double check all soldering joints and connections.**  Flakey connections
+    cause many mysterious problems.  See the [guide to excellent soldering](https://learn.adafruit.com/adafruit-guide-excellent-soldering/tools) for examples of good solder joints.
+
+  - **Ensure you are using an official Arduino or Adafruit board.** We can't
+    guarantee a clone board will have the same functionality and work as expected
+    with this code and don't support them.
+
+If you're sure this issue is a defect in the code and checked the steps above
+please fill in the following fields to provide enough troubleshooting information.
+You may delete the guideline and text above to just leave the following details:
+
+- Arduino board:  **INSERT ARDUINO BOARD NAME/TYPE HERE**
+
+- Arduino IDE version (found in Arduino -> About Arduino menu):  **INSERT ARDUINO
+  VERSION HERE**
+
+- List the steps to reproduce the problem below (if possible attach a sketch or
+  copy the sketch code in too): **LIST REPRO STEPS BELOW**

lib/Adafruit_NeoPixel/.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,26 @@
+Thank you for creating a pull request to contribute to Adafruit's GitHub code!
+Before you open the request please review the following guidelines and tips to
+help it be more easily integrated:
+
+- **Describe the scope of your change--i.e. what the change does and what parts
+  of the code were modified.**  This will help us understand any risks of integrating
+  the code.
+
+- **Describe any known limitations with your change.**  For example if the change
+  doesn't apply to a supported platform of the library please mention it.
+
+- **Please run any tests or examples that can exercise your modified code.**  We
+  strive to not break users of the code and running tests/examples helps with this
+  process.
+
+Thank you again for contributing!  We will try to test and integrate the change
+as soon as we can, but be aware we have many GitHub repositories to manage and
+can't immediately respond to every request.  There is no need to bump or check in
+on a pull request (it will clutter the discussion of the request).
+
+Also don't be worried if the request is closed or not integrated--sometimes the
+priorities of Adafruit's GitHub code (education, ease of use) might not match the
+priorities of the pull request.  Don't fret, the open source community thrives on
+forks and GitHub makes it easy to keep your changes in a forked repo.
+
+After reviewing the guidelines above you can delete this text from the pull request.

lib/Adafruit_NeoPixel/.travis.yml

@@ -0,0 +1,11 @@
+language: c
+sudo: false
+before_install:
+  - source <(curl -SLs https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/install.sh)
+script:
+  - build_main_platforms
+  - build_platform trinket
+notifications:
+  email:
+    on_success: change
+    on_failure: change

lib/Adafruit_NeoPixel/Adafruit_NeoPixel.h

@@ -0,0 +1,181 @@
+/*--------------------------------------------------------------------
+  This file is part of the Adafruit NeoPixel library.
+
+  NeoPixel is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation, either version 3 of
+  the License, or (at your option) any later version.
+
+  NeoPixel is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with NeoPixel.  If not, see
+  <http://www.gnu.org/licenses/>.
+  --------------------------------------------------------------------*/
+
+#ifndef ADAFRUIT_NEOPIXEL_H
+#define ADAFRUIT_NEOPIXEL_H
+
+#if (ARDUINO >= 100)
+ #include <Arduino.h>
+#else
+ #include <WProgram.h>
+ #include <pins_arduino.h>
+#endif
+
+// The order of primary colors in the NeoPixel data stream can vary
+// among device types, manufacturers and even different revisions of
+// the same item.  The third parameter to the Adafruit_NeoPixel
+// constructor encodes the per-pixel byte offsets of the red, green
+// and blue primaries (plus white, if present) in the data stream --
+// the following #defines provide an easier-to-use named version for
+// each permutation.  e.g. NEO_GRB indicates a NeoPixel-compatible
+// device expecting three bytes per pixel, with the first byte
+// containing the green value, second containing red and third
+// containing blue.  The in-memory representation of a chain of
+// NeoPixels is the same as the data-stream order; no re-ordering of
+// bytes is required when issuing data to the chain.
+
+// Bits 5,4 of this value are the offset (0-3) from the first byte of
+// a pixel to the location of the red color byte.  Bits 3,2 are the
+// green offset and 1,0 are the blue offset.  If it is an RGBW-type
+// device (supporting a white primary in addition to R,G,B), bits 7,6
+// are the offset to the white byte...otherwise, bits 7,6 are set to
+// the same value as 5,4 (red) to indicate an RGB (not RGBW) device.
+// i.e. binary representation:
+// 0bWWRRGGBB for RGBW devices
+// 0bRRRRGGBB for RGB
+
+// RGB NeoPixel permutations; white and red offsets are always same
+// Offset:         W          R          G          B
+#define NEO_RGB  ((0 << 6) | (0 << 4) | (1 << 2) | (2))
+#define NEO_RBG  ((0 << 6) | (0 << 4) | (2 << 2) | (1))
+#define NEO_GRB  ((1 << 6) | (1 << 4) | (0 << 2) | (2))
+#define NEO_GBR  ((2 << 6) | (2 << 4) | (0 << 2) | (1))
+#define NEO_BRG  ((1 << 6) | (1 << 4) | (2 << 2) | (0))
+#define NEO_BGR  ((2 << 6) | (2 << 4) | (1 << 2) | (0))
+
+// RGBW NeoPixel permutations; all 4 offsets are distinct
+// Offset:         W          R          G          B
+#define NEO_WRGB ((0 << 6) | (1 << 4) | (2 << 2) | (3))
+#define NEO_WRBG ((0 << 6) | (1 << 4) | (3 << 2) | (2))
+#define NEO_WGRB ((0 << 6) | (2 << 4) | (1 << 2) | (3))
+#define NEO_WGBR ((0 << 6) | (3 << 4) | (1 << 2) | (2))
+#define NEO_WBRG ((0 << 6) | (2 << 4) | (3 << 2) | (1))
+#define NEO_WBGR ((0 << 6) | (3 << 4) | (2 << 2) | (1))
+
+#define NEO_RWGB ((1 << 6) | (0 << 4) | (2 << 2) | (3))
+#define NEO_RWBG ((1 << 6) | (0 << 4) | (3 << 2) | (2))
+#define NEO_RGWB ((2 << 6) | (0 << 4) | (1 << 2) | (3))
+#define NEO_RGBW ((3 << 6) | (0 << 4) | (1 << 2) | (2))
+#define NEO_RBWG ((2 << 6) | (0 << 4) | (3 << 2) | (1))
+#define NEO_RBGW ((3 << 6) | (0 << 4) | (2 << 2) | (1))
+
+#define NEO_GWRB ((1 << 6) | (2 << 4) | (0 << 2) | (3))
+#define NEO_GWBR ((1 << 6) | (3 << 4) | (0 << 2) | (2))
+#define NEO_GRWB ((2 << 6) | (1 << 4) | (0 << 2) | (3))
+#define NEO_GRBW ((3 << 6) | (1 << 4) | (0 << 2) | (2))
+#define NEO_GBWR ((2 << 6) | (3 << 4) | (0 << 2) | (1))
+#define NEO_GBRW ((3 << 6) | (2 << 4) | (0 << 2) | (1))
+
+#define NEO_BWRG ((1 << 6) | (2 << 4) | (3 << 2) | (0))
+#define NEO_BWGR ((1 << 6) | (3 << 4) | (2 << 2) | (0))
+#define NEO_BRWG ((2 << 6) | (1 << 4) | (3 << 2) | (0))
+#define NEO_BRGW ((3 << 6) | (1 << 4) | (2 << 2) | (0))
+#define NEO_BGWR ((2 << 6) | (3 << 4) | (1 << 2) | (0))
+#define NEO_BGRW ((3 << 6) | (2 << 4) | (1 << 2) | (0))
+
+// Add NEO_KHZ400 to the color order value to indicate a 400 KHz
+// device.  All but the earliest v1 NeoPixels expect an 800 KHz data
+// stream, this is the default if unspecified.  Because flash space
+// is very limited on ATtiny devices (e.g. Trinket, Gemma), v1
+// NeoPixels aren't handled by default on those chips, though it can
+// be enabled by removing the ifndef/endif below -- but code will be
+// bigger.  Conversely, can disable the NEO_KHZ400 line on other MCUs
+// to remove v1 support and save a little space.
+
+#define NEO_KHZ800 0x0000 // 800 KHz datastream
+#ifndef __AVR_ATtiny85__
+#define NEO_KHZ400 0x0100 // 400 KHz datastream
+#endif
+
+// If 400 KHz support is enabled, the third parameter to the constructor
+// requires a 16-bit value (in order to select 400 vs 800 KHz speed).
+// If only 800 KHz is enabled (as is default on ATtiny), an 8-bit value
+// is sufficient to encode pixel color order, saving some space.
+
+#ifdef NEO_KHZ400
+typedef uint16_t neoPixelType;
+#else
+typedef uint8_t  neoPixelType;
+#endif
+
+class Adafruit_NeoPixel {
+
+ public:
+
+  // Constructor: number of LEDs, pin number, LED type
+  Adafruit_NeoPixel(uint16_t n, uint8_t p=6, neoPixelType t=NEO_GRB + NEO_KHZ800);
+  Adafruit_NeoPixel(void);
+  ~Adafruit_NeoPixel();
+
+  void
+    begin(void),
+    show(void),
+    setPin(uint8_t p),
+    setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b),
+    setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b, uint8_t w),
+    setPixelColor(uint16_t n, uint32_t c),
+    setBrightness(uint8_t),
+    clear(),
+    updateLength(uint16_t n),
+    updateType(neoPixelType t);
+  uint8_t
+   *getPixels(void) const,
+    getBrightness(void) const;
+  int8_t
+    getPin(void) { return pin; };
+  uint16_t
+    numPixels(void) const;
+  static uint32_t
+    Color(uint8_t r, uint8_t g, uint8_t b),
+    Color(uint8_t r, uint8_t g, uint8_t b, uint8_t w);
+  uint32_t
+    getPixelColor(uint16_t n) const;
+  inline bool
+    canShow(void) { return (micros() - endTime) >= 50L; }
+
+ private:
+
+  boolean
+#ifdef NEO_KHZ400  // If 400 KHz NeoPixel support enabled...
+    is800KHz,      // ...true if 800 KHz pixels
+#endif
+    begun;         // true if begin() previously called
+  uint16_t
+    numLEDs,       // Number of RGB LEDs in strip
+    numBytes;      // Size of 'pixels' buffer below (3 or 4 bytes/pixel)
+  int8_t
+    pin;           // Output pin number (-1 if not yet set)
+  uint8_t
+    brightness,
+   *pixels,        // Holds LED color values (3 or 4 bytes each)
+    rOffset,       // Index of red byte within each 3- or 4-byte pixel
+    gOffset,       // Index of green byte
+    bOffset,       // Index of blue byte
+    wOffset;       // Index of white byte (same as rOffset if no white)
+  uint32_t
+    endTime;       // Latch timing reference
+#ifdef __AVR__
+  volatile uint8_t
+    *port;         // Output PORT register
+  uint8_t
+    pinMask;       // Output PORT bitmask
+#endif
+
+};
+
+#endif // ADAFRUIT_NEOPIXEL_H

lib/Adafruit_NeoPixel/COPYING

@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
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+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
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+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

lib/Adafruit_NeoPixel/README.md

@@ -0,0 +1,11 @@
+# Adafruit NeoPixel Library [![Build Status](https://travis-ci.org/adafruit/Adafruit_NeoPixel.svg?branch=master)](https://travis-ci.org/adafruit/Adafruit_NeoPixel)
+
+Arduino library for controlling single-wire-based LED pixels and strip such as the [Adafruit 60 LED/meter Digital LED strip][strip], the [Adafruit FLORA RGB Smart Pixel][flora], the [Adafruit Breadboard-friendly RGB Smart Pixel][pixel], the [Adafruit NeoPixel Stick][stick], and the [Adafruit NeoPixel Shield][shield].
+
+After downloading, rename folder to 'Adafruit_NeoPixel' and install in Arduino Libraries folder. Restart Arduino IDE, then open File->Sketchbook->Library->Adafruit_NeoPixel->strandtest sketch.
+
+[flora]:  http://adafruit.com/products/1060
+[strip]:  http://adafruit.com/products/1138
+[pixel]:  http://adafruit.com/products/1312
+[stick]:  http://adafruit.com/products/1426
+[shield]: http://adafruit.com/products/1430

lib/Adafruit_NeoPixel/esp8266.c

@@ -0,0 +1,67 @@
+// This is a mash-up of the Due show() code + insights from Michael Miller's
+// ESP8266 work for the NeoPixelBus library: github.com/Makuna/NeoPixelBus
+// Needs to be a separate .c file to enforce ICACHE_RAM_ATTR execution.
+
+#ifdef ESP8266
+
+#include <Arduino.h>
+#include <eagle_soc.h>
+
+static uint32_t _getCycleCount(void) __attribute__((always_inline));
+static inline uint32_t _getCycleCount(void) {
+  uint32_t ccount;
+  __asm__ __volatile__("rsr %0,ccount":"=a" (ccount));
+  return ccount;
+}
+
+void ICACHE_RAM_ATTR espShow(
+ uint8_t pin, uint8_t *pixels, uint32_t numBytes, boolean is800KHz) {
+
+#define CYCLES_800_T0H  (F_CPU / 2500000) // 0.4us
+#define CYCLES_800_T1H  (F_CPU / 1250000) // 0.8us
+#define CYCLES_800      (F_CPU /  800000) // 1.25us per bit
+#define CYCLES_400_T0H  (F_CPU / 2000000) // 0.5uS
+#define CYCLES_400_T1H  (F_CPU /  833333) // 1.2us
+#define CYCLES_400      (F_CPU /  400000) // 2.5us per bit
+
+  uint8_t *p, *end, pix, mask;
+  uint32_t t, time0, time1, period, c, startTime, pinMask;
+
+  pinMask   = _BV(pin);
+  p         =  pixels;
+  end       =  p + numBytes;
+  pix       = *p++;
+  mask      = 0x80;
+  startTime = 0;
+
+#ifdef NEO_KHZ400
+  if(is800KHz) {
+#endif
+    time0  = CYCLES_800_T0H;
+    time1  = CYCLES_800_T1H;
+    period = CYCLES_800;
+#ifdef NEO_KHZ400
+  } else { // 400 KHz bitstream
+    time0  = CYCLES_400_T0H;
+    time1  = CYCLES_400_T1H;
+    period = CYCLES_400;
+  }
+#endif
+
+  for(t = time0;; t = time0) {
+    if(pix & mask) t = time1;                             // Bit high duration
+    while(((c = _getCycleCount()) - startTime) < period); // Wait for bit start
+    GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, pinMask);       // Set high
+    startTime = c;                                        // Save start time
+    while(((c = _getCycleCount()) - startTime) < t);      // Wait high duration
+    GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, pinMask);       // Set low
+    if(!(mask >>= 1)) {                                   // Next bit/byte
+      if(p >= end) break;
+      pix  = *p++;
+      mask = 0x80;
+    }
+  }
+  while((_getCycleCount() - startTime) < period); // Wait for last bit
+}
+
+#endif // ESP8266

lib/Adafruit_NeoPixel/examples/RGBWstrandtest/RGBWstrandtest.ino

@@ -0,0 +1,263 @@
+#include <Adafruit_NeoPixel.h>
+#ifdef __AVR__
+  #include <avr/power.h>
+#endif
+
+#define PIN 6
+
+#define NUM_LEDS 60
+
+#define BRIGHTNESS 50
+
+Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LEDS, PIN, NEO_GRBW + NEO_KHZ800);
+
+int gamma[] = {
+    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  2,  2,  2,  2,  2,  2,  2,
+    2,  3,  3,  3,  3,  3,  3,  3,  4,  4,  4,  4,  4,  5,  5,  5,
+    5,  6,  6,  6,  6,  7,  7,  7,  7,  8,  8,  8,  9,  9,  9, 10,
+   10, 10, 11, 11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16,
+   17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 24, 24, 25,
+   25, 26, 27, 27, 28, 29, 29, 30, 31, 32, 32, 33, 34, 35, 35, 36,
+   37, 38, 39, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 50,
+   51, 52, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68,
+   69, 70, 72, 73, 74, 75, 77, 78, 79, 81, 82, 83, 85, 86, 87, 89,
+   90, 92, 93, 95, 96, 98, 99,101,102,104,105,107,109,110,112,114,
+  115,117,119,120,122,124,126,127,129,131,133,135,137,138,140,142,
+  144,146,148,150,152,154,156,158,160,162,164,167,169,171,173,175,
+  177,180,182,184,186,189,191,193,196,198,200,203,205,208,210,213,
+  215,218,220,223,225,228,231,233,236,239,241,244,247,249,252,255 };
+
+
+void setup() {
+  Serial.begin(115200);
+  // This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket
+  #if defined (__AVR_ATtiny85__)
+    if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
+  #endif
+  // End of trinket special code
+  strip.setBrightness(BRIGHTNESS);
+  strip.begin();
+  strip.show(); // Initialize all pixels to 'off'
+}
+
+void loop() {
+  // Some example procedures showing how to display to the pixels:
+  colorWipe(strip.Color(255, 0, 0), 50); // Red
+  colorWipe(strip.Color(0, 255, 0), 50); // Green
+  colorWipe(strip.Color(0, 0, 255), 50); // Blue
+  colorWipe(strip.Color(0, 0, 0, 255), 50); // White
+
+  whiteOverRainbow(20,75,5);  
+
+  pulseWhite(5); 
+
+  // fullWhite();
+  // delay(2000);
+
+  rainbowFade2White(3,3,1);
+
+
+}
+
+// Fill the dots one after the other with a color
+void colorWipe(uint32_t c, uint8_t wait) {
+  for(uint16_t i=0; i<strip.numPixels(); i++) {
+    strip.setPixelColor(i, c);
+    strip.show();
+    delay(wait);
+  }
+}
+
+void pulseWhite(uint8_t wait) {
+  for(int j = 0; j < 256 ; j++){
+      for(uint16_t i=0; i<strip.numPixels(); i++) {
+          strip.setPixelColor(i, strip.Color(0,0,0, gamma[j] ) );
+        }
+        delay(wait);
+        strip.show();
+      }
+
+  for(int j = 255; j >= 0 ; j--){
+      for(uint16_t i=0; i<strip.numPixels(); i++) {
+          strip.setPixelColor(i, strip.Color(0,0,0, gamma[j] ) );
+        }
+        delay(wait);
+        strip.show();
+      }
+}
+
+
+void rainbowFade2White(uint8_t wait, int rainbowLoops, int whiteLoops) {
+  float fadeMax = 100.0;
+  int fadeVal = 0;
+  uint32_t wheelVal;
+  int redVal, greenVal, blueVal;
+
+  for(int k = 0 ; k < rainbowLoops ; k ++){
+    
+    for(int j=0; j<256; j++) { // 5 cycles of all colors on wheel
+
+      for(int i=0; i< strip.numPixels(); i++) {
+
+        wheelVal = Wheel(((i * 256 / strip.numPixels()) + j) & 255);
+
+        redVal = red(wheelVal) * float(fadeVal/fadeMax);
+        greenVal = green(wheelVal) * float(fadeVal/fadeMax);
+        blueVal = blue(wheelVal) * float(fadeVal/fadeMax);
+
+        strip.setPixelColor( i, strip.Color( redVal, greenVal, blueVal ) );
+
+      }
+
+      //First loop, fade in!
+      if(k == 0 && fadeVal < fadeMax-1) {
+          fadeVal++;
+      }
+
+      //Last loop, fade out!
+      else if(k == rainbowLoops - 1 && j > 255 - fadeMax ){
+          fadeVal--;
+      }
+
+        strip.show();
+        delay(wait);
+    }
+  
+  }
+
+
+
+  delay(500);
+
+
+  for(int k = 0 ; k < whiteLoops ; k ++){
+
+    for(int j = 0; j < 256 ; j++){
+
+        for(uint16_t i=0; i < strip.numPixels(); i++) {
+            strip.setPixelColor(i, strip.Color(0,0,0, gamma[j] ) );
+          }
+          strip.show();
+        }
+
+        delay(2000);
+    for(int j = 255; j >= 0 ; j--){
+
+        for(uint16_t i=0; i < strip.numPixels(); i++) {
+            strip.setPixelColor(i, strip.Color(0,0,0, gamma[j] ) );
+          }
+          strip.show();
+        }
+  }
+
+  delay(500);
+
+
+}
+
+void whiteOverRainbow(uint8_t wait, uint8_t whiteSpeed, uint8_t whiteLength ) {
+  
+  if(whiteLength >= strip.numPixels()) whiteLength = strip.numPixels() - 1;
+
+  int head = whiteLength - 1;
+  int tail = 0;
+
+  int loops = 3;
+  int loopNum = 0;
+
+  static unsigned long lastTime = 0;
+
+
+  while(true){
+    for(int j=0; j<256; j++) {
+      for(uint16_t i=0; i<strip.numPixels(); i++) {
+        if((i >= tail && i <= head) || (tail > head && i >= tail) || (tail > head && i <= head) ){
+          strip.setPixelColor(i, strip.Color(0,0,0, 255 ) );
+        }
+        else{
+          strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
+        }
+        
+      }
+
+      if(millis() - lastTime > whiteSpeed) {
+        head++;
+        tail++;
+        if(head == strip.numPixels()){
+          loopNum++;
+        }
+        lastTime = millis();
+      }
+
+      if(loopNum == loops) return;
+    
+      head%=strip.numPixels();
+      tail%=strip.numPixels();
+        strip.show();
+        delay(wait);
+    }
+  }
+  
+}
+void fullWhite() {
+  
+    for(uint16_t i=0; i<strip.numPixels(); i++) {
+        strip.setPixelColor(i, strip.Color(0,0,0, 255 ) );
+    }
+      strip.show();
+}
+
+
+// Slightly different, this makes the rainbow equally distributed throughout
+void rainbowCycle(uint8_t wait) {
+  uint16_t i, j;
+
+  for(j=0; j<256 * 5; j++) { // 5 cycles of all colors on wheel
+    for(i=0; i< strip.numPixels(); i++) {
+      strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
+    }
+    strip.show();
+    delay(wait);
+  }
+}
+
+void rainbow(uint8_t wait) {
+  uint16_t i, j;
+
+  for(j=0; j<256; j++) {
+    for(i=0; i<strip.numPixels(); i++) {
+      strip.setPixelColor(i, Wheel((i+j) & 255));
+    }
+    strip.show();
+    delay(wait);
+  }
+}
+
+// Input a value 0 to 255 to get a color value.
+// The colours are a transition r - g - b - back to r.
+uint32_t Wheel(byte WheelPos) {
+  WheelPos = 255 - WheelPos;
+  if(WheelPos < 85) {
+    return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3,0);
+  }
+  if(WheelPos < 170) {
+    WheelPos -= 85;
+    return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3,0);
+  }
+  WheelPos -= 170;
+  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0,0);
+}
+
+uint8_t red(uint32_t c) {
+  return (c >> 8);
+}
+uint8_t green(uint32_t c) {
+  return (c >> 16);
+}
+uint8_t blue(uint32_t c) {
+  return (c);
+}
+
+

lib/Adafruit_NeoPixel/examples/buttoncycler/buttoncycler.ino

@@ -0,0 +1,165 @@
+// This is a demonstration on how to use an input device to trigger changes on your neo pixels.
+// You should wire a momentary push button to connect from ground to a digital IO pin.  When you
+// press the button it will change to a new pixel animation.  Note that you need to press the
+// button once to start the first animation!
+
+#include <Adafruit_NeoPixel.h>
+
+#define BUTTON_PIN   2    // Digital IO pin connected to the button.  This will be
+                          // driven with a pull-up resistor so the switch should
+                          // pull the pin to ground momentarily.  On a high -> low
+                          // transition the button press logic will execute.
+
+#define PIXEL_PIN    6    // Digital IO pin connected to the NeoPixels.
+
+#define PIXEL_COUNT 16
+
+// Parameter 1 = number of pixels in strip,  neopixel stick has 8
+// Parameter 2 = pin number (most are valid)
+// Parameter 3 = pixel type flags, add together as needed:
+//   NEO_RGB     Pixels are wired for RGB bitstream
+//   NEO_GRB     Pixels are wired for GRB bitstream, correct for neopixel stick
+//   NEO_KHZ400  400 KHz bitstream (e.g. FLORA pixels)
+//   NEO_KHZ800  800 KHz bitstream (e.g. High Density LED strip), correct for neopixel stick
+Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, NEO_GRB + NEO_KHZ800);
+
+bool oldState = HIGH;
+int showType = 0;
+
+void setup() {
+  pinMode(BUTTON_PIN, INPUT_PULLUP);
+  strip.begin();
+  strip.show(); // Initialize all pixels to 'off'
+}
+
+void loop() {
+  // Get current button state.
+  bool newState = digitalRead(BUTTON_PIN);
+
+  // Check if state changed from high to low (button press).
+  if (newState == LOW && oldState == HIGH) {
+    // Short delay to debounce button.
+    delay(20);
+    // Check if button is still low after debounce.
+    newState = digitalRead(BUTTON_PIN);
+    if (newState == LOW) {
+      showType++;
+      if (showType > 9)
+        showType=0;
+      startShow(showType);
+    }
+  }
+
+  // Set the last button state to the old state.
+  oldState = newState;
+}
+
+void startShow(int i) {
+  switch(i){
+    case 0: colorWipe(strip.Color(0, 0, 0), 50);    // Black/off
+            break;
+    case 1: colorWipe(strip.Color(255, 0, 0), 50);  // Red
+            break;
+    case 2: colorWipe(strip.Color(0, 255, 0), 50);  // Green
+            break;
+    case 3: colorWipe(strip.Color(0, 0, 255), 50);  // Blue
+            break;
+    case 4: theaterChase(strip.Color(127, 127, 127), 50); // White
+            break;
+    case 5: theaterChase(strip.Color(127,   0,   0), 50); // Red
+            break;
+    case 6: theaterChase(strip.Color(  0,   0, 127), 50); // Blue
+            break;
+    case 7: rainbow(20);
+            break;
+    case 8: rainbowCycle(20);
+            break;
+    case 9: theaterChaseRainbow(50);
+            break;
+  }
+}
+
+// Fill the dots one after the other with a color
+void colorWipe(uint32_t c, uint8_t wait) {
+  for(uint16_t i=0; i<strip.numPixels(); i++) {
+    strip.setPixelColor(i, c);
+    strip.show();
+    delay(wait);
+  }
+}
+
+void rainbow(uint8_t wait) {
+  uint16_t i, j;
+
+  for(j=0; j<256; j++) {
+    for(i=0; i<strip.numPixels(); i++) {
+      strip.setPixelColor(i, Wheel((i+j) & 255));
+    }
+    strip.show();
+    delay(wait);
+  }
+}
+
+// Slightly different, this makes the rainbow equally distributed throughout
+void rainbowCycle(uint8_t wait) {
+  uint16_t i, j;
+
+  for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel
+    for(i=0; i< strip.numPixels(); i++) {
+      strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
+    }
+    strip.show();
+    delay(wait);
+  }
+}
+
+//Theatre-style crawling lights.
+void theaterChase(uint32_t c, uint8_t wait) {
+  for (int j=0; j<10; j++) {  //do 10 cycles of chasing
+    for (int q=0; q < 3; q++) {
+      for (int i=0; i < strip.numPixels(); i=i+3) {
+        strip.setPixelColor(i+q, c);    //turn every third pixel on
+      }
+      strip.show();
+
+      delay(wait);
+
+      for (int i=0; i < strip.numPixels(); i=i+3) {
+        strip.setPixelColor(i+q, 0);        //turn every third pixel off
+      }
+    }
+  }
+}
+
+//Theatre-style crawling lights with rainbow effect
+void theaterChaseRainbow(uint8_t wait) {
+  for (int j=0; j < 256; j++) {     // cycle all 256 colors in the wheel
+    for (int q=0; q < 3; q++) {
+      for (int i=0; i < strip.numPixels(); i=i+3) {
+        strip.setPixelColor(i+q, Wheel( (i+j) % 255));    //turn every third pixel on
+      }
+      strip.show();
+
+      delay(wait);
+
+      for (int i=0; i < strip.numPixels(); i=i+3) {
+        strip.setPixelColor(i+q, 0);        //turn every third pixel off
+      }
+    }
+  }
+}
+
+// Input a value 0 to 255 to get a color value.
+// The colours are a transition r - g - b - back to r.
+uint32_t Wheel(byte WheelPos) {
+  WheelPos = 255 - WheelPos;
+  if(WheelPos < 85) {
+    return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
+  }
+  if(WheelPos < 170) {
+    WheelPos -= 85;
+    return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
+  }
+  WheelPos -= 170;
+  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
+}

lib/Adafruit_NeoPixel/examples/simple/simple.ino

@@ -0,0 +1,47 @@
+// NeoPixel Ring simple sketch (c) 2013 Shae Erisson
+// released under the GPLv3 license to match the rest of the AdaFruit NeoPixel library
+
+#include <Adafruit_NeoPixel.h>
+#ifdef __AVR__
+  #include <avr/power.h>
+#endif
+
+// Which pin on the Arduino is connected to the NeoPixels?
+// On a Trinket or Gemma we suggest changing this to 1
+#define PIN            6
+
+// How many NeoPixels are attached to the Arduino?
+#define NUMPIXELS      16
+
+// When we setup the NeoPixel library, we tell it how many pixels, and which pin to use to send signals.
+// Note that for older NeoPixel strips you might need to change the third parameter--see the strandtest
+// example for more information on possible values.
+Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
+
+int delayval = 500; // delay for half a second
+
+void setup() {
+  // This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket
+#if defined (__AVR_ATtiny85__)
+  if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
+#endif
+  // End of trinket special code
+
+  pixels.begin(); // This initializes the NeoPixel library.
+}
+
+void loop() {
+
+  // For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one.
+
+  for(int i=0;i<NUMPIXELS;i++){
+
+    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
+    pixels.setPixelColor(i, pixels.Color(0,150,0)); // Moderately bright green color.
+
+    pixels.show(); // This sends the updated pixel color to the hardware.
+
+    delay(delayval); // Delay for a period of time (in milliseconds).
+
+  }
+}

lib/Adafruit_NeoPixel/examples/strandtest/strandtest.ino

@@ -0,0 +1,134 @@
+#include <Adafruit_NeoPixel.h>
+#ifdef __AVR__
+  #include <avr/power.h>
+#endif
+
+#define PIN 6
+
+// Parameter 1 = number of pixels in strip
+// Parameter 2 = Arduino pin number (most are valid)
+// Parameter 3 = pixel type flags, add together as needed:
+//   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
+//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
+//   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)
+//   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
+//   NEO_RGBW    Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
+Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, PIN, NEO_GRB + NEO_KHZ800);
+
+// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across
+// pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input
+// and minimize distance between Arduino and first pixel.  Avoid connecting
+// on a live circuit...if you must, connect GND first.
+
+void setup() {
+  // This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket
+  #if defined (__AVR_ATtiny85__)
+    if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
+  #endif
+  // End of trinket special code
+
+
+  strip.begin();
+  strip.show(); // Initialize all pixels to 'off'
+}
+
+void loop() {
+  // Some example procedures showing how to display to the pixels:
+  colorWipe(strip.Color(255, 0, 0), 50); // Red
+  colorWipe(strip.Color(0, 255, 0), 50); // Green
+  colorWipe(strip.Color(0, 0, 255), 50); // Blue
+//colorWipe(strip.Color(0, 0, 0, 255), 50); // White RGBW
+  // Send a theater pixel chase in...
+  theaterChase(strip.Color(127, 127, 127), 50); // White
+  theaterChase(strip.Color(127, 0, 0), 50); // Red
+  theaterChase(strip.Color(0, 0, 127), 50); // Blue
+
+  rainbow(20);
+  rainbowCycle(20);
+  theaterChaseRainbow(50);
+}
+
+// Fill the dots one after the other with a color
+void colorWipe(uint32_t c, uint8_t wait) {
+  for(uint16_t i=0; i<strip.numPixels(); i++) {
+    strip.setPixelColor(i, c);
+    strip.show();
+    delay(wait);
+  }
+}
+
+void rainbow(uint8_t wait) {
+  uint16_t i, j;
+
+  for(j=0; j<256; j++) {
+    for(i=0; i<strip.numPixels(); i++) {
+      strip.setPixelColor(i, Wheel((i+j) & 255));
+    }
+    strip.show();
+    delay(wait);
+  }
+}
+
+// Slightly different, this makes the rainbow equally distributed throughout
+void rainbowCycle(uint8_t wait) {
+  uint16_t i, j;
+
+  for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel
+    for(i=0; i< strip.numPixels(); i++) {
+      strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
+    }
+    strip.show();
+    delay(wait);
+  }
+}
+
+//Theatre-style crawling lights.
+void theaterChase(uint32_t c, uint8_t wait) {
+  for (int j=0; j<10; j++) {  //do 10 cycles of chasing
+    for (int q=0; q < 3; q++) {
+      for (uint16_t i=0; i < strip.numPixels(); i=i+3) {
+        strip.setPixelColor(i+q, c);    //turn every third pixel on
+      }
+      strip.show();
+
+      delay(wait);
+
+      for (uint16_t i=0; i < strip.numPixels(); i=i+3) {
+        strip.setPixelColor(i+q, 0);        //turn every third pixel off
+      }
+    }
+  }
+}
+
+//Theatre-style crawling lights with rainbow effect
+void theaterChaseRainbow(uint8_t wait) {
+  for (int j=0; j < 256; j++) {     // cycle all 256 colors in the wheel
+    for (int q=0; q < 3; q++) {
+      for (uint16_t i=0; i < strip.numPixels(); i=i+3) {
+        strip.setPixelColor(i+q, Wheel( (i+j) % 255));    //turn every third pixel on
+      }
+      strip.show();
+
+      delay(wait);
+
+      for (uint16_t i=0; i < strip.numPixels(); i=i+3) {
+        strip.setPixelColor(i+q, 0);        //turn every third pixel off
+      }
+    }
+  }
+}
+
+// Input a value 0 to 255 to get a color value.
+// The colours are a transition r - g - b - back to r.
+uint32_t Wheel(byte WheelPos) {
+  WheelPos = 255 - WheelPos;
+  if(WheelPos < 85) {
+    return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
+  }
+  if(WheelPos < 170) {
+    WheelPos -= 85;
+    return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
+  }
+  WheelPos -= 170;
+  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
+}

lib/Adafruit_NeoPixel/keywords.txt

@@ -0,0 +1,29 @@
+#######################################
+# Syntax Coloring Map For Adafruit_NeoPixel
+####################################### 
+# Class
+#######################################
+
+Adafruit_NeoPixel	KEYWORD1
+
+#######################################
+# Methods and Functions 
+#######################################	
+
+setPixelColor	KEYWORD2
+setPin			KEYWORD2
+setBrightness	KEYWORD2
+numPixels		KEYWORD2
+getPixelColor	KEYWORD2
+Color			KEYWORD2
+
+#######################################
+# Constants
+#######################################
+ 
+NEO_GRB			LITERAL1
+NEO_COLMASK		LITERAL1
+NEO_KHZ800		LITERAL1
+NEO_SPDMASK		LITERAL1
+NEO_RGB			LITERAL1
+NEO_KHZ400		LITERAL1

lib/Adafruit_NeoPixel/library.properties

@@ -0,0 +1,9 @@
+name=Adafruit NeoPixel
+version=1.0.6
+author=Adafruit
+maintainer=Adafruit <info@adafruit.com>
+sentence=Arduino library for controlling single-wire-based LED pixels and strip.
+paragraph=Arduino library for controlling single-wire-based LED pixels and strip.
+category=Display
+url=https://github.com/adafruit/Adafruit_NeoPixel
+architectures=*

lib/Adafruit_TCS34725/.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,46 @@
+Thank you for opening an issue on an Adafruit Arduino library repository.  To
+improve the speed of resolution please review the following guidelines and
+common troubleshooting steps below before creating the issue:
+
+- **Do not use GitHub issues for troubleshooting projects and issues.**  Instead use
+  the forums at http://forums.adafruit.com to ask questions and troubleshoot why
+  something isn't working as expected.  In many cases the problem is a common issue
+  that you will more quickly receive help from the forum community.  GitHub issues
+  are meant for known defects in the code.  If you don't know if there is a defect
+  in the code then start with troubleshooting on the forum first.
+
+- **If following a tutorial or guide be sure you didn't miss a step.** Carefully
+  check all of the steps and commands to run have been followed.  Consult the
+  forum if you're unsure or have questions about steps in a guide/tutorial.
+
+- **For Arduino projects check these very common issues to ensure they don't apply**:
+
+  - For uploading sketches or communicating with the board make sure you're using
+    a **USB data cable** and **not** a **USB charge-only cable**.  It is sometimes
+    very hard to tell the difference between a data and charge cable!  Try using the
+    cable with other devices or swapping to another cable to confirm it is not
+    the problem.
+
+  - **Be sure you are supplying adequate power to the board.**  Check the specs of
+    your board and plug in an external power supply.  In many cases just
+    plugging a board into your computer is not enough to power it and other
+    peripherals.
+
+  - **Double check all soldering joints and connections.**  Flakey connections
+    cause many mysterious problems.  See the [guide to excellent soldering](https://learn.adafruit.com/adafruit-guide-excellent-soldering/tools) for examples of good solder joints.
+
+  - **Ensure you are using an official Arduino or Adafruit board.** We can't
+    guarantee a clone board will have the same functionality and work as expected
+    with this code and don't support them.
+
+If you're sure this issue is a defect in the code and checked the steps above
+please fill in the following fields to provide enough troubleshooting information.
+You may delete the guideline and text above to just leave the following details:
+
+- Arduino board:  **INSERT ARDUINO BOARD NAME/TYPE HERE**
+
+- Arduino IDE version (found in Arduino -> About Arduino menu):  **INSERT ARDUINO
+  VERSION HERE**
+
+- List the steps to reproduce the problem below (if possible attach a sketch or
+  copy the sketch code in too): **LIST REPRO STEPS BELOW**

lib/Adafruit_TCS34725/.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,26 @@
+Thank you for creating a pull request to contribute to Adafruit's GitHub code!
+Before you open the request please review the following guidelines and tips to
+help it be more easily integrated:
+
+- **Describe the scope of your change--i.e. what the change does and what parts
+  of the code were modified.**  This will help us understand any risks of integrating
+  the code.
+
+- **Describe any known limitations with your change.**  For example if the change
+  doesn't apply to a supported platform of the library please mention it.
+
+- **Please run any tests or examples that can exercise your modified code.**  We
+  strive to not break users of the code and running tests/examples helps with this
+  process.
+
+Thank you again for contributing!  We will try to test and integrate the change
+as soon as we can, but be aware we have many GitHub repositories to manage and
+can't immediately respond to every request.  There is no need to bump or check in
+on a pull request (it will clutter the discussion of the request).
+
+Also don't be worried if the request is closed or not integrated--sometimes the
+priorities of Adafruit's GitHub code (education, ease of use) might not match the
+priorities of the pull request.  Don't fret, the open source community thrives on
+forks and GitHub makes it easy to keep your changes in a forked repo.
+
+After reviewing the guidelines above you can delete this text from the pull request.

lib/Adafruit_TCS34725/Adafruit_TCS34725.cpp

@@ -0,0 +1,334 @@
+/**************************************************************************/
+/*!
+    @file     Adafruit_TCS34725.cpp
+    @author   KTOWN (Adafruit Industries)
+    @license  BSD (see license.txt)
+
+    Driver for the TCS34725 digital color sensors.
+
+    Adafruit invests time and resources providing this open source code,
+    please support Adafruit and open-source hardware by purchasing
+    products from Adafruit!
+
+    @section  HISTORY
+
+    v1.0 - First release
+*/
+/**************************************************************************/
+#ifdef __AVR
+  #include <avr/pgmspace.h>
+#elif defined(ESP8266)
+  #include <pgmspace.h>
+#endif
+#include <stdlib.h>
+#include <math.h>
+
+#include "Adafruit_TCS34725.h"
+
+/*========================================================================*/
+/*                          PRIVATE FUNCTIONS                             */
+/*========================================================================*/
+
+/**************************************************************************/
+/*!
+    @brief  Implements missing powf function
+*/
+/**************************************************************************/
+float powf(const float x, const float y)
+{
+  return (float)(pow((double)x, (double)y));
+}
+
+/**************************************************************************/
+/*!
+    @brief  Writes a register and an 8 bit value over I2C
+*/
+/**************************************************************************/
+void Adafruit_TCS34725::write8 (uint8_t reg, uint32_t value)
+{
+  Wire.beginTransmission(TCS34725_ADDRESS);
+  #if ARDUINO >= 100
+  Wire.write(TCS34725_COMMAND_BIT | reg);
+  Wire.write(value & 0xFF);
+  #else
+  Wire.send(TCS34725_COMMAND_BIT | reg);
+  Wire.send(value & 0xFF);
+  #endif
+  Wire.endTransmission();
+}
+
+/**************************************************************************/
+/*!
+    @brief  Reads an 8 bit value over I2C
+*/
+/**************************************************************************/
+uint8_t Adafruit_TCS34725::read8(uint8_t reg)
+{
+  Wire.beginTransmission(TCS34725_ADDRESS);
+  #if ARDUINO >= 100
+  Wire.write(TCS34725_COMMAND_BIT | reg);
+  #else
+  Wire.send(TCS34725_COMMAND_BIT | reg);
+  #endif
+  Wire.endTransmission();
+
+  Wire.requestFrom(TCS34725_ADDRESS, 1);
+  #if ARDUINO >= 100
+  return Wire.read();
+  #else
+  return Wire.receive();
+  #endif
+}
+
+/**************************************************************************/
+/*!
+    @brief  Reads a 16 bit values over I2C
+*/
+/**************************************************************************/
+uint16_t Adafruit_TCS34725::read16(uint8_t reg)
+{
+  uint16_t x; uint16_t t;
+
+  Wire.beginTransmission(TCS34725_ADDRESS);
+  #if ARDUINO >= 100
+  Wire.write(TCS34725_COMMAND_BIT | reg);
+  #else
+  Wire.send(TCS34725_COMMAND_BIT | reg);
+  #endif
+  Wire.endTransmission();
+
+  Wire.requestFrom(TCS34725_ADDRESS, 2);
+  #if ARDUINO >= 100
+  t = Wire.read();
+  x = Wire.read();
+  #else
+  t = Wire.receive();
+  x = Wire.receive();
+  #endif
+  x <<= 8;
+  x |= t;
+  return x;
+}
+
+/**************************************************************************/
+/*!
+    Enables the device
+*/
+/**************************************************************************/
+void Adafruit_TCS34725::enable(void)
+{
+  write8(TCS34725_ENABLE, TCS34725_ENABLE_PON);
+  delay(3);
+  write8(TCS34725_ENABLE, TCS34725_ENABLE_PON | TCS34725_ENABLE_AEN);  
+}
+
+/**************************************************************************/
+/*!
+    Disables the device (putting it in lower power sleep mode)
+*/
+/**************************************************************************/
+void Adafruit_TCS34725::disable(void)
+{
+  /* Turn the device off to save power */
+  uint8_t reg = 0;
+  reg = read8(TCS34725_ENABLE);
+  write8(TCS34725_ENABLE, reg & ~(TCS34725_ENABLE_PON | TCS34725_ENABLE_AEN));
+}
+
+/*========================================================================*/
+/*                            CONSTRUCTORS                                */
+/*========================================================================*/
+
+/**************************************************************************/
+/*!
+    Constructor
+*/
+/**************************************************************************/
+Adafruit_TCS34725::Adafruit_TCS34725(tcs34725IntegrationTime_t it, tcs34725Gain_t gain) 
+{
+  _tcs34725Initialised = false;
+  _tcs34725IntegrationTime = it;
+  _tcs34725Gain = gain;
+}
+
+/*========================================================================*/
+/*                           PUBLIC FUNCTIONS                             */
+/*========================================================================*/
+
+/**************************************************************************/
+/*!
+    Initializes I2C and configures the sensor (call this function before
+    doing anything else)
+*/
+/**************************************************************************/
+boolean Adafruit_TCS34725::begin(void) 
+{
+  Wire.begin();
+  
+  /* Make sure we're actually connected */
+  uint8_t x = read8(TCS34725_ID);
+  if ((x != 0x44) && (x != 0x10))
+  {
+    return false;
+  }
+  _tcs34725Initialised = true;
+
+  /* Set default integration time and gain */
+  setIntegrationTime(_tcs34725IntegrationTime);
+  setGain(_tcs34725Gain);
+
+  /* Note: by default, the device is in power down mode on bootup */
+  enable();
+
+  return true;
+}
+  
+/**************************************************************************/
+/*!
+    Sets the integration time for the TC34725
+*/
+/**************************************************************************/
+void Adafruit_TCS34725::setIntegrationTime(tcs34725IntegrationTime_t it)
+{
+  if (!_tcs34725Initialised) begin();
+
+  /* Update the timing register */
+  write8(TCS34725_ATIME, it);
+
+  /* Update value placeholders */
+  _tcs34725IntegrationTime = it;
+}
+
+/**************************************************************************/
+/*!
+    Adjusts the gain on the TCS34725 (adjusts the sensitivity to light)
+*/
+/**************************************************************************/
+void Adafruit_TCS34725::setGain(tcs34725Gain_t gain)
+{
+  if (!_tcs34725Initialised) begin();
+
+  /* Update the timing register */
+  write8(TCS34725_CONTROL, gain);
+
+  /* Update value placeholders */
+  _tcs34725Gain = gain;
+}
+
+/**************************************************************************/
+/*!
+    @brief  Reads the raw red, green, blue and clear channel values
+*/
+/**************************************************************************/
+void Adafruit_TCS34725::getRawData (uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *c)
+{
+  if (!_tcs34725Initialised) begin();
+
+  *c = read16(TCS34725_CDATAL);
+  *r = read16(TCS34725_RDATAL);
+  *g = read16(TCS34725_GDATAL);
+  *b = read16(TCS34725_BDATAL);
+  
+  /* Set a delay for the integration time */
+  switch (_tcs34725IntegrationTime)
+  {
+    case TCS34725_INTEGRATIONTIME_2_4MS:
+      delay(3);
+      break;
+    case TCS34725_INTEGRATIONTIME_24MS:
+      delay(24);
+      break;
+    case TCS34725_INTEGRATIONTIME_50MS:
+      delay(50);
+      break;
+    case TCS34725_INTEGRATIONTIME_101MS:
+      delay(101);
+      break;
+    case TCS34725_INTEGRATIONTIME_154MS:
+      delay(154);
+      break;
+    case TCS34725_INTEGRATIONTIME_700MS:
+      delay(700);
+      break;
+  }
+}
+
+/**************************************************************************/
+/*!
+    @brief  Converts the raw R/G/B values to color temperature in degrees
+            Kelvin
+*/
+/**************************************************************************/
+uint16_t Adafruit_TCS34725::calculateColorTemperature(uint16_t r, uint16_t g, uint16_t b)
+{
+  float X, Y, Z;      /* RGB to XYZ correlation      */
+  float xc, yc;       /* Chromaticity co-ordinates   */
+  float n;            /* McCamy's formula            */
+  float cct;
+
+  /* 1. Map RGB values to their XYZ counterparts.    */
+  /* Based on 6500K fluorescent, 3000K fluorescent   */
+  /* and 60W incandescent values for a wide range.   */
+  /* Note: Y = Illuminance or lux                    */
+  X = (-0.14282F * r) + (1.54924F * g) + (-0.95641F * b);
+  Y = (-0.32466F * r) + (1.57837F * g) + (-0.73191F * b);
+  Z = (-0.68202F * r) + (0.77073F * g) + ( 0.56332F * b);
+
+  /* 2. Calculate the chromaticity co-ordinates      */
+  xc = (X) / (X + Y + Z);
+  yc = (Y) / (X + Y + Z);
+
+  /* 3. Use McCamy's formula to determine the CCT    */
+  n = (xc - 0.3320F) / (0.1858F - yc);
+
+  /* Calculate the final CCT */
+  cct = (449.0F * powf(n, 3)) + (3525.0F * powf(n, 2)) + (6823.3F * n) + 5520.33F;
+
+  /* Return the results in degrees Kelvin */
+  return (uint16_t)cct;
+}
+
+/**************************************************************************/
+/*!
+    @brief  Converts the raw R/G/B values to lux
+*/
+/**************************************************************************/
+uint16_t Adafruit_TCS34725::calculateLux(uint16_t r, uint16_t g, uint16_t b)
+{
+  float illuminance;
+
+  /* This only uses RGB ... how can we integrate clear or calculate lux */
+  /* based exclusively on clear since this might be more reliable?      */
+  illuminance = (-0.32466F * r) + (1.57837F * g) + (-0.73191F * b);
+
+  return (uint16_t)illuminance;
+}
+
+
+void Adafruit_TCS34725::setInterrupt(boolean i) {
+  uint8_t r = read8(TCS34725_ENABLE);
+  if (i) {
+    r |= TCS34725_ENABLE_AIEN;
+  } else {
+    r &= ~TCS34725_ENABLE_AIEN;
+  }
+  write8(TCS34725_ENABLE, r);
+}
+
+void Adafruit_TCS34725::clearInterrupt(void) {
+  Wire.beginTransmission(TCS34725_ADDRESS);
+  #if ARDUINO >= 100
+  Wire.write(TCS34725_COMMAND_BIT | 0x66);
+  #else
+  Wire.send(TCS34725_COMMAND_BIT | 0x66);
+  #endif
+  Wire.endTransmission();
+}
+
+
+void Adafruit_TCS34725::setIntLimits(uint16_t low, uint16_t high) {
+   write8(0x04, low & 0xFF);
+   write8(0x05, low >> 8);
+   write8(0x06, high & 0xFF);
+   write8(0x07, high >> 8);
+}

lib/Adafruit_TCS34725/Adafruit_TCS34725.h

@@ -0,0 +1,144 @@
+/**************************************************************************/
+/*! 
+    @file     Adafruit_TCS34725.h
+    @author   KTOWN (Adafruit Industries)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, Adafruit Industries
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+    1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holders nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/**************************************************************************/
+#ifndef _TCS34725_H_
+#define _TCS34725_H_
+
+#if ARDUINO >= 100
+ #include <Arduino.h>
+#else
+ #include <WProgram.h>
+#endif
+
+#include <Wire.h>
+
+#define TCS34725_ADDRESS          (0x29)
+
+#define TCS34725_COMMAND_BIT      (0x80)
+
+#define TCS34725_ENABLE           (0x00)
+#define TCS34725_ENABLE_AIEN      (0x10)    /* RGBC Interrupt Enable */
+#define TCS34725_ENABLE_WEN       (0x08)    /* Wait enable - Writing 1 activates the wait timer */
+#define TCS34725_ENABLE_AEN       (0x02)    /* RGBC Enable - Writing 1 actives the ADC, 0 disables it */
+#define TCS34725_ENABLE_PON       (0x01)    /* Power on - Writing 1 activates the internal oscillator, 0 disables it */
+#define TCS34725_ATIME            (0x01)    /* Integration time */
+#define TCS34725_WTIME            (0x03)    /* Wait time (if TCS34725_ENABLE_WEN is asserted) */
+#define TCS34725_WTIME_2_4MS      (0xFF)    /* WLONG0 = 2.4ms   WLONG1 = 0.029s */
+#define TCS34725_WTIME_204MS      (0xAB)    /* WLONG0 = 204ms   WLONG1 = 2.45s  */
+#define TCS34725_WTIME_614MS      (0x00)    /* WLONG0 = 614ms   WLONG1 = 7.4s   */
+#define TCS34725_AILTL            (0x04)    /* Clear channel lower interrupt threshold */
+#define TCS34725_AILTH            (0x05)
+#define TCS34725_AIHTL            (0x06)    /* Clear channel upper interrupt threshold */
+#define TCS34725_AIHTH            (0x07)
+#define TCS34725_PERS             (0x0C)    /* Persistence register - basic SW filtering mechanism for interrupts */
+#define TCS34725_PERS_NONE        (0b0000)  /* Every RGBC cycle generates an interrupt                                */
+#define TCS34725_PERS_1_CYCLE     (0b0001)  /* 1 clean channel value outside threshold range generates an interrupt   */
+#define TCS34725_PERS_2_CYCLE     (0b0010)  /* 2 clean channel values outside threshold range generates an interrupt  */
+#define TCS34725_PERS_3_CYCLE     (0b0011)  /* 3 clean channel values outside threshold range generates an interrupt  */
+#define TCS34725_PERS_5_CYCLE     (0b0100)  /* 5 clean channel values outside threshold range generates an interrupt  */
+#define TCS34725_PERS_10_CYCLE    (0b0101)  /* 10 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_15_CYCLE    (0b0110)  /* 15 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_20_CYCLE    (0b0111)  /* 20 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_25_CYCLE    (0b1000)  /* 25 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_30_CYCLE    (0b1001)  /* 30 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_35_CYCLE    (0b1010)  /* 35 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_40_CYCLE    (0b1011)  /* 40 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_45_CYCLE    (0b1100)  /* 45 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_50_CYCLE    (0b1101)  /* 50 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_55_CYCLE    (0b1110)  /* 55 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_PERS_60_CYCLE    (0b1111)  /* 60 clean channel values outside threshold range generates an interrupt */
+#define TCS34725_CONFIG           (0x0D)
+#define TCS34725_CONFIG_WLONG     (0x02)    /* Choose between short and long (12x) wait times via TCS34725_WTIME */
+#define TCS34725_CONTROL          (0x0F)    /* Set the gain level for the sensor */
+#define TCS34725_ID               (0x12)    /* 0x44 = TCS34721/TCS34725, 0x4D = TCS34723/TCS34727 */
+#define TCS34725_STATUS           (0x13)
+#define TCS34725_STATUS_AINT      (0x10)    /* RGBC Clean channel interrupt */
+#define TCS34725_STATUS_AVALID    (0x01)    /* Indicates that the RGBC channels have completed an integration cycle */
+#define TCS34725_CDATAL           (0x14)    /* Clear channel data */
+#define TCS34725_CDATAH           (0x15)
+#define TCS34725_RDATAL           (0x16)    /* Red channel data */
+#define TCS34725_RDATAH           (0x17)
+#define TCS34725_GDATAL           (0x18)    /* Green channel data */
+#define TCS34725_GDATAH           (0x19)
+#define TCS34725_BDATAL           (0x1A)    /* Blue channel data */
+#define TCS34725_BDATAH           (0x1B)
+
+typedef enum
+{
+  TCS34725_INTEGRATIONTIME_2_4MS  = 0xFF,   /**<  2.4ms - 1 cycle    - Max Count: 1024  */
+  TCS34725_INTEGRATIONTIME_24MS   = 0xF6,   /**<  24ms  - 10 cycles  - Max Count: 10240 */
+  TCS34725_INTEGRATIONTIME_50MS   = 0xEB,   /**<  50ms  - 20 cycles  - Max Count: 20480 */
+  TCS34725_INTEGRATIONTIME_101MS  = 0xD5,   /**<  101ms - 42 cycles  - Max Count: 43008 */
+  TCS34725_INTEGRATIONTIME_154MS  = 0xC0,   /**<  154ms - 64 cycles  - Max Count: 65535 */
+  TCS34725_INTEGRATIONTIME_700MS  = 0x00    /**<  700ms - 256 cycles - Max Count: 65535 */
+}
+tcs34725IntegrationTime_t;
+
+typedef enum
+{
+  TCS34725_GAIN_1X                = 0x00,   /**<  No gain  */
+  TCS34725_GAIN_4X                = 0x01,   /**<  4x gain  */
+  TCS34725_GAIN_16X               = 0x02,   /**<  16x gain */
+  TCS34725_GAIN_60X               = 0x03    /**<  60x gain */
+}
+tcs34725Gain_t;
+
+class Adafruit_TCS34725 {
+ public:
+  Adafruit_TCS34725(tcs34725IntegrationTime_t = TCS34725_INTEGRATIONTIME_2_4MS, tcs34725Gain_t = TCS34725_GAIN_1X);
+  
+  boolean  begin(void);
+  void     setIntegrationTime(tcs34725IntegrationTime_t it);
+  void     setGain(tcs34725Gain_t gain);
+  void     getRawData(uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *c);
+  uint16_t calculateColorTemperature(uint16_t r, uint16_t g, uint16_t b);
+  uint16_t calculateLux(uint16_t r, uint16_t g, uint16_t b);
+  void     write8 (uint8_t reg, uint32_t value);
+  uint8_t  read8 (uint8_t reg);
+  uint16_t read16 (uint8_t reg);
+  void setInterrupt(boolean flag);
+  void clearInterrupt(void);
+  void setIntLimits(uint16_t l, uint16_t h);
+  void     enable(void);
+
+ private:
+  boolean _tcs34725Initialised;
+  tcs34725Gain_t _tcs34725Gain;
+  tcs34725IntegrationTime_t _tcs34725IntegrationTime; 
+  
+  void     disable(void);
+};
+
+#endif

lib/Adafruit_TCS34725/README.md

@@ -0,0 +1,21 @@
+#Adafruit TCS34725 Color Sensor Driver #
+
+This driver is for the Adafruit TCS34725 Breakout.
+    ------> http://www.adafruit.com/products/1334
+
+## About this Driver ##
+
+These modules use I2C to communicate, 2 pins are required to  
+interface
+
+Adafruit invests time and resources providing this open source code, 
+please support Adafruit and open-source hardware by purchasing 
+products from Adafruit!
+
+Written by Kevin (KTOWN) Townsend for Adafruit Industries.
+BSD license, check license.txt for more information
+All text above must be included in any redistribution
+
+To download. click the ZIP button in the top bar, and check this tutorial
+for instructions on how to install: 
+http://learn.adafruit.com/adafruit-all-about-arduino-libraries-install-use

lib/Adafruit_TCS34725/examples/colorview/colorview.ino

@@ -0,0 +1,88 @@
+#include <Wire.h>
+#include "Adafruit_TCS34725.h"
+
+// Pick analog outputs, for the UNO these three work well
+// use ~560  ohm resistor between Red & Blue, ~1K for green (its brighter)
+#define redpin 3
+#define greenpin 5
+#define bluepin 6
+// for a common anode LED, connect the common pin to +5V
+// for common cathode, connect the common to ground
+
+// set to false if using a common cathode LED
+#define commonAnode true
+
+// our RGB -> eye-recognized gamma color
+byte gammatable[256];
+
+
+Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_50MS, TCS34725_GAIN_4X);
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("Color View Test!");
+
+  if (tcs.begin()) {
+    Serial.println("Found sensor");
+  } else {
+    Serial.println("No TCS34725 found ... check your connections");
+    while (1); // halt!
+  }
+  
+  // use these three pins to drive an LED
+  pinMode(redpin, OUTPUT);
+  pinMode(greenpin, OUTPUT);
+  pinMode(bluepin, OUTPUT);
+  
+  // thanks PhilB for this gamma table!
+  // it helps convert RGB colors to what humans see
+  for (int i=0; i<256; i++) {
+    float x = i;
+    x /= 255;
+    x = pow(x, 2.5);
+    x *= 255;
+      
+    if (commonAnode) {
+      gammatable[i] = 255 - x;
+    } else {
+      gammatable[i] = x;      
+    }
+    //Serial.println(gammatable[i]);
+  }
+}
+
+
+void loop() {
+  uint16_t clear, red, green, blue;
+
+  tcs.setInterrupt(false);      // turn on LED
+
+  delay(60);  // takes 50ms to read 
+  
+  tcs.getRawData(&red, &green, &blue, &clear);
+
+  tcs.setInterrupt(true);  // turn off LED
+  
+  Serial.print("C:\t"); Serial.print(clear);
+  Serial.print("\tR:\t"); Serial.print(red);
+  Serial.print("\tG:\t"); Serial.print(green);
+  Serial.print("\tB:\t"); Serial.print(blue);
+
+  // Figure out some basic hex code for visualization
+  uint32_t sum = clear;
+  float r, g, b;
+  r = red; r /= sum;
+  g = green; g /= sum;
+  b = blue; b /= sum;
+  r *= 256; g *= 256; b *= 256;
+  Serial.print("\t");
+  Serial.print((int)r, HEX); Serial.print((int)g, HEX); Serial.print((int)b, HEX);
+  Serial.println();
+
+  //Serial.print((int)r ); Serial.print(" "); Serial.print((int)g);Serial.print(" ");  Serial.println((int)b );
+
+  analogWrite(redpin, gammatable[(int)r]);
+  analogWrite(greenpin, gammatable[(int)g]);
+  analogWrite(bluepin, gammatable[(int)b]);
+}
+

lib/Adafruit_TCS34725/examples/colorview/processing/colorview/colorview.pde

@@ -0,0 +1,80 @@
+/* For use with the colorview Arduino example sketch 
+   Update the Serial() new call to match your serial port
+   e.g. COM4, /dev/usbserial, etc!
+*/
+
+
+import processing.serial.*;
+import java.awt.datatransfer.*;
+import java.awt.Toolkit;
+
+Serial port;
+ 
+void setup(){
+ size(200,200);
+ port = new Serial(this, "COM4", 9600); //remember to replace COM20 with the appropriate serial port on your computer
+}
+ 
+ 
+String buff = "";
+
+int wRed, wGreen, wBlue, wClear;
+String hexColor = "ffffff";
+ 
+
+void draw(){
+ background(wRed,wGreen,wBlue);
+ // check for serial, and process
+ while (port.available() > 0) {
+   serialEvent(port.read());
+ }
+}
+ 
+void serialEvent(int serial) {
+ if(serial != '\n') {
+   buff += char(serial);
+ } else {
+   //println(buff);
+   
+   int cRed = buff.indexOf("R");
+   int cGreen = buff.indexOf("G");
+   int cBlue = buff.indexOf("B");
+   int clear = buff.indexOf("C");
+   if(clear >=0){
+     String val = buff.substring(clear+3);
+     val = val.split("\t")[0]; 
+     wClear = Integer.parseInt(val.trim());
+   } else { return; }
+   
+   if(cRed >=0){
+     String val = buff.substring(cRed+3);
+     val = val.split("\t")[0]; 
+     wRed = Integer.parseInt(val.trim());
+   } else { return; }
+   
+   if(cGreen >=0) {
+     String val = buff.substring(cGreen+3);
+     val = val.split("\t")[0]; 
+     wGreen = Integer.parseInt(val.trim());
+   } else { return; }
+   
+   if(cBlue >=0) {
+     String val = buff.substring(cBlue+3);
+     val = val.split("\t")[0]; 
+     wBlue = Integer.parseInt(val.trim());
+   } else { return; }
+   
+   print("Red: "); print(wRed);
+   print("\tGrn: "); print(wGreen);
+   print("\tBlue: "); print(wBlue);
+   print("\tClr: "); println(wClear);
+   
+   wRed *= 255; wRed /= wClear;
+   wGreen *= 255; wGreen /= wClear; 
+   wBlue *= 255; wBlue /= wClear; 
+
+   hexColor = hex(color(wRed, wGreen, wBlue), 6);
+   println(hexColor);
+   buff = "";
+ }
+}

lib/Adafruit_TCS34725/examples/interrupt/interrupt.ino

@@ -0,0 +1,69 @@
+#include <Wire.h>
+#include <Adafruit_TCS34725.h>
+
+
+/* Initialise with specific int time and gain values */
+Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_700MS, TCS34725_GAIN_1X);
+const int interruptPin = 2;
+volatile boolean state = false;
+
+
+//Interrupt Service Routine
+void isr() 
+{
+  state = true;
+}
+
+
+/* tcs.getRawData() does a delay(Integration_Time) after the sensor readout.
+We don't need to wait for the next integration cycle because we receive an interrupt when the integration cycle is complete*/
+void getRawData_noDelay(uint16_t *r, uint16_t *g, uint16_t *b, uint16_t *c)
+{
+  *c = tcs.read16(TCS34725_CDATAL);
+  *r = tcs.read16(TCS34725_RDATAL);
+  *g = tcs.read16(TCS34725_GDATAL);
+  *b = tcs.read16(TCS34725_BDATAL);
+}
+
+
+void setup() {
+  pinMode(interruptPin, INPUT_PULLUP); //TCS interrupt output is Active-LOW and Open-Drain
+  attachInterrupt(digitalPinToInterrupt(interruptPin), isr, FALLING);
+
+  Serial.begin(9600);
+  
+  if (tcs.begin()) {
+    Serial.println("Found sensor");
+  } else {
+    Serial.println("No TCS34725 found ... check your connections");
+    while (1);
+  }
+  
+  // Set persistence filter to generate an interrupt for every RGB Cycle, regardless of the integration limits
+  tcs.write8(TCS34725_PERS, TCS34725_PERS_NONE); 
+  tcs.setInterrupt(true);
+  
+  Serial.flush();
+}
+
+
+void loop() {
+  if (state) {
+    uint16_t r, g, b, c, colorTemp, lux;
+    getRawData_noDelay(&r, &g, &b, &c);
+    colorTemp = tcs.calculateColorTemperature(r, g, b);
+    lux = tcs.calculateLux(r, g, b);
+    
+    Serial.print("Color Temp: "); Serial.print(colorTemp, DEC); Serial.print(" K - ");
+    Serial.print("Lux: "); Serial.print(lux, DEC); Serial.print(" - ");
+    Serial.print("R: "); Serial.print(r, DEC); Serial.print(" ");
+    Serial.print("G: "); Serial.print(g, DEC); Serial.print(" ");
+    Serial.print("B: "); Serial.print(b, DEC); Serial.print(" ");
+    Serial.print("C: "); Serial.print(c, DEC); Serial.print(" ");
+    Serial.println(" ");
+    Serial.flush();
+
+    tcs.clearInterrupt();
+    state = false;
+  }
+}

lib/Adafruit_TCS34725/examples/tcs34725/tcs34725.pde

@@ -0,0 +1,44 @@
+#include <Wire.h>
+#include "Adafruit_TCS34725.h"
+
+/* Example code for the Adafruit TCS34725 breakout library */
+
+/* Connect SCL    to analog 5
+   Connect SDA    to analog 4
+   Connect VDD    to 3.3V DC
+   Connect GROUND to common ground */
+   
+/* Initialise with default values (int time = 2.4ms, gain = 1x) */
+// Adafruit_TCS34725 tcs = Adafruit_TCS34725();
+
+/* Initialise with specific int time and gain values */
+Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_700MS, TCS34725_GAIN_1X);
+
+void setup(void) {
+  Serial.begin(9600);
+  
+  if (tcs.begin()) {
+    Serial.println("Found sensor");
+  } else {
+    Serial.println("No TCS34725 found ... check your connections");
+    while (1);
+  }
+  
+  // Now we're ready to get readings!
+}
+
+void loop(void) {
+  uint16_t r, g, b, c, colorTemp, lux;
+  
+  tcs.getRawData(&r, &g, &b, &c);
+  colorTemp = tcs.calculateColorTemperature(r, g, b);
+  lux = tcs.calculateLux(r, g, b);
+  
+  Serial.print("Color Temp: "); Serial.print(colorTemp, DEC); Serial.print(" K - ");
+  Serial.print("Lux: "); Serial.print(lux, DEC); Serial.print(" - ");
+  Serial.print("R: "); Serial.print(r, DEC); Serial.print(" ");
+  Serial.print("G: "); Serial.print(g, DEC); Serial.print(" ");
+  Serial.print("B: "); Serial.print(b, DEC); Serial.print(" ");
+  Serial.print("C: "); Serial.print(c, DEC); Serial.print(" ");
+  Serial.println(" ");
+}

lib/Adafruit_TCS34725/examples/tcs34725autorange/tcs34725autorange.ino

@@ -0,0 +1,211 @@
+#include <Wire.h>
+#include "Adafruit_TCS34725.h"
+
+//
+// An experimental wrapper class that implements the improved lux and color temperature from 
+// TAOS and a basic autorange mechanism.
+//
+// Written by ductsoup, public domain
+//
+
+// RGB Color Sensor with IR filter and White LED - TCS34725
+// I2C 7-bit address 0x29, 8-bit address 0x52
+//
+// http://www.adafruit.com/product/1334
+// http://learn.adafruit.com/adafruit-color-sensors/overview
+// http://www.adafruit.com/datasheets/TCS34725.pdf
+// http://www.ams.com/eng/Products/Light-Sensors/Color-Sensor/TCS34725
+// http://www.ams.com/eng/content/view/download/265215 <- DN40, calculations
+// http://www.ams.com/eng/content/view/download/181895 <- DN39, some thoughts on autogain
+// http://www.ams.com/eng/content/view/download/145158 <- DN25 (original Adafruit calculations)
+//
+// connect LED to digital 4 or GROUND for ambient light sensing
+// connect SCL to analog 5
+// connect SDA to analog 4
+// connect Vin to 3.3-5V DC
+// connect GROUND to common ground
+
+// some magic numbers for this device from the DN40 application note
+#define TCS34725_R_Coef 0.136 
+#define TCS34725_G_Coef 1.000
+#define TCS34725_B_Coef -0.444
+#define TCS34725_GA 1.0
+#define TCS34725_DF 310.0
+#define TCS34725_CT_Coef 3810.0
+#define TCS34725_CT_Offset 1391.0
+
+// Autorange class for TCS34725
+class tcs34725 {
+public:
+  tcs34725(void);
+
+  boolean begin(void);
+  void getData(void);  
+
+  boolean isAvailable, isSaturated;
+  uint16_t againx, atime, atime_ms;
+  uint16_t r, g, b, c;
+  uint16_t ir; 
+  uint16_t r_comp, g_comp, b_comp, c_comp;
+  uint16_t saturation, saturation75;
+  float cratio, cpl, ct, lux, maxlux;
+  
+private:
+  struct tcs_agc {
+    tcs34725Gain_t ag;
+    tcs34725IntegrationTime_t at;
+    uint16_t mincnt;
+    uint16_t maxcnt;
+  };
+  static const tcs_agc agc_lst[];
+  uint16_t agc_cur;
+
+  void setGainTime(void);  
+  Adafruit_TCS34725 tcs;    
+};
+//
+// Gain/time combinations to use and the min/max limits for hysteresis 
+// that avoid saturation. They should be in order from dim to bright. 
+//
+// Also set the first min count and the last max count to 0 to indicate 
+// the start and end of the list. 
+//
+const tcs34725::tcs_agc tcs34725::agc_lst[] = {
+  { TCS34725_GAIN_60X, TCS34725_INTEGRATIONTIME_700MS,     0, 20000 },
+  { TCS34725_GAIN_60X, TCS34725_INTEGRATIONTIME_154MS,  4990, 63000 },
+  { TCS34725_GAIN_16X, TCS34725_INTEGRATIONTIME_154MS, 16790, 63000 },
+  { TCS34725_GAIN_4X,  TCS34725_INTEGRATIONTIME_154MS, 15740, 63000 },
+  { TCS34725_GAIN_1X,  TCS34725_INTEGRATIONTIME_154MS, 15740, 0 }
+};
+tcs34725::tcs34725() : agc_cur(0), isAvailable(0), isSaturated(0) {
+}
+
+// initialize the sensor
+boolean tcs34725::begin(void) {
+  tcs = Adafruit_TCS34725(agc_lst[agc_cur].at, agc_lst[agc_cur].ag);
+  if ((isAvailable = tcs.begin())) 
+    setGainTime();
+  return(isAvailable);
+}
+
+// Set the gain and integration time
+void tcs34725::setGainTime(void) {
+  tcs.setGain(agc_lst[agc_cur].ag);
+  tcs.setIntegrationTime(agc_lst[agc_cur].at);
+  atime = int(agc_lst[agc_cur].at);
+  atime_ms = ((256 - atime) * 2.4);  
+  switch(agc_lst[agc_cur].ag) {
+  case TCS34725_GAIN_1X: 
+    againx = 1; 
+    break;
+  case TCS34725_GAIN_4X: 
+    againx = 4; 
+    break;
+  case TCS34725_GAIN_16X: 
+    againx = 16; 
+    break;
+  case TCS34725_GAIN_60X: 
+    againx = 60; 
+    break;
+  }        
+}
+
+// Retrieve data from the sensor and do the calculations
+void tcs34725::getData(void) {
+  // read the sensor and autorange if necessary
+  tcs.getRawData(&r, &g, &b, &c);
+  while(1) {
+    if (agc_lst[agc_cur].maxcnt && c > agc_lst[agc_cur].maxcnt) 
+      agc_cur++;
+    else if (agc_lst[agc_cur].mincnt && c < agc_lst[agc_cur].mincnt)
+      agc_cur--;
+    else break;
+
+    setGainTime(); 
+    delay((256 - atime) * 2.4 * 2); // shock absorber
+    tcs.getRawData(&r, &g, &b, &c);
+    break;    
+  }
+
+  // DN40 calculations
+  ir = (r + g + b > c) ? (r + g + b - c) / 2 : 0;
+  r_comp = r - ir;
+  g_comp = g - ir;
+  b_comp = b - ir;
+  c_comp = c - ir;   
+  cratio = float(ir) / float(c);
+
+  saturation = ((256 - atime) > 63) ? 65535 : 1024 * (256 - atime);
+  saturation75 = (atime_ms < 150) ? (saturation - saturation / 4) : saturation;
+  isSaturated = (atime_ms < 150 && c > saturation75) ? 1 : 0;
+  cpl = (atime_ms * againx) / (TCS34725_GA * TCS34725_DF); 
+  maxlux = 65535 / (cpl * 3);
+
+  lux = (TCS34725_R_Coef * float(r_comp) + TCS34725_G_Coef * float(g_comp) + TCS34725_B_Coef * float(b_comp)) / cpl;
+  ct = TCS34725_CT_Coef * float(b_comp) / float(r_comp) + TCS34725_CT_Offset;
+}
+
+tcs34725 rgb_sensor;
+
+void setup(void) {
+  Serial.begin(115200);
+  rgb_sensor.begin();
+  pinMode(4, OUTPUT);
+  digitalWrite(4, LOW); // @gremlins Bright light, bright light!
+}
+
+void loop(void) {
+  rgb_sensor.getData();
+  Serial.print(F("Gain:")); 
+  Serial.print(rgb_sensor.againx); 
+  Serial.print(F("x "));
+  Serial.print(F("Time:")); 
+  Serial.print(rgb_sensor.atime_ms); 
+  Serial.print(F("ms (0x")); 
+  Serial.print(rgb_sensor.atime, HEX);   
+  Serial.println(F(")"));
+  
+  Serial.print(F("Raw R:")); 
+  Serial.print(rgb_sensor.r); 
+  Serial.print(F(" G:")); 
+  Serial.print(rgb_sensor.g); 
+  Serial.print(F(" B:")); 
+  Serial.print(rgb_sensor.b); 
+  Serial.print(F(" C:")); 
+  Serial.println(rgb_sensor.c); 
+
+  Serial.print(F("IR:")); 
+  Serial.print(rgb_sensor.ir); 
+  Serial.print(F(" CRATIO:"));
+  Serial.print(rgb_sensor.cratio); 
+  Serial.print(F(" Sat:"));
+  Serial.print(rgb_sensor.saturation); 
+  Serial.print(F(" Sat75:"));
+  Serial.print(rgb_sensor.saturation75); 
+  Serial.print(F(" "));
+  Serial.println(rgb_sensor.isSaturated ? "*SATURATED*" : "");
+
+  Serial.print(F("CPL:")); 
+  Serial.print(rgb_sensor.cpl);
+  Serial.print(F(" Max lux:")); 
+  Serial.println(rgb_sensor.maxlux);
+
+  Serial.print(F("Compensated R:")); 
+  Serial.print(rgb_sensor.r_comp); 
+  Serial.print(F(" G:")); 
+  Serial.print(rgb_sensor.g_comp); 
+  Serial.print(F(" B:")); 
+  Serial.print(rgb_sensor.b_comp); 
+  Serial.print(F(" C:")); 
+  Serial.println(rgb_sensor.c_comp); 
+  
+  Serial.print(F("Lux:")); 
+  Serial.print(rgb_sensor.lux);
+  Serial.print(F(" CT:")); 
+  Serial.print(rgb_sensor.ct);
+  Serial.println(F("K")); 
+  
+  Serial.println();
+  
+  delay(2000);
+}

lib/Adafruit_TCS34725/library.properties

@@ -0,0 +1,9 @@
+name=Adafruit TCS34725
+version=1.0.1
+author=Adafruit
+maintainer=Adafruit <info@adafruit.com>
+sentence=Driver for Adafruit's TCS34725 RGB Color Sensor Breakout
+paragraph=Driver for Adafruit's TCS34725 RGB Color Sensor Breakout
+category=Sensors
+url=https://github.com/adafruit/Adafruit_TCS34725
+architectures=*

lib/ArduinoJson/.clang-format

@@ -0,0 +1,5 @@
+# http://clang.llvm.org/docs/ClangFormatStyleOptions.html
+
+BasedOnStyle: Google
+Standard: Cpp03
+AllowShortFunctionsOnASingleLine: Empty

lib/ArduinoJson/.gitattributes

@@ -0,0 +1 @@
+*.sh text eol=lf

lib/ArduinoJson/.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,11 @@
+<!--
+Thanks for using ArduinoJson :-)
+
+Before opening an issue, please make sure you've read these:
+https://github.com/bblanchon/ArduinoJson/wiki/FAQ
+https://github.com/bblanchon/ArduinoJson/wiki/Avoiding-pitfalls
+
+Next, make sure you provide all the relevant information: platform, code snippet, and error messages.
+
+Please be concise!
+-->

lib/ArduinoJson/.gitignore

@@ -0,0 +1,8 @@
+.DS_Store
+/.idea
+/build
+/bin
+/lib
+/sftp-config.json
+.tags
+.tags_sorted_by_file

lib/ArduinoJson/.travis.yml

@@ -0,0 +1,118 @@
+sudo: false
+language: cpp
+matrix:
+  include:
+    - compiler: gcc
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['g++-4.4']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=g++-4.4
+    - compiler: gcc
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['g++-4.5']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=g++-4.5
+    - compiler: gcc
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['g++-4.6']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=g++-4.6
+    - compiler: gcc
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['g++-4.7']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=g++-4.7
+    - compiler: gcc
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['g++-4.8']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=g++-4.8
+    - compiler: gcc
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['g++-4.9']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=g++-4.9
+    - compiler: gcc
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['g++-5']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=g++-5
+    - compiler: clang
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=clang++
+    - compiler: clang
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5']
+          packages: ['clang-3.5']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=clang++-3.5
+    - compiler: clang
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test','llvm-toolchain-precise-3.6']
+          packages: ['clang-3.6']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=clang++-3.6
+    - compiler: clang
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test','llvm-toolchain-precise-3.7']
+          packages: ['clang-3.7']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=clang++-3.7
+    - compiler: clang
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test','llvm-toolchain-precise-3.8']
+          packages: ['clang-3.8']
+      env: SCRIPT=cmake CMAKE_CXX_COMPILER=clang++-3.8
+    - compiler: gcc
+      env: SCRIPT=coverage
+    - os: osx
+      osx_image: beta-xcode6.1
+      compiler: clang
+      env: SCRIPT=cmake-osx
+    - os: osx
+      osx_image: beta-xcode6.2
+      compiler: clang
+      env: SCRIPT=cmake-osx
+    - os: osx
+      osx_image: beta-xcode6.3
+      compiler: clang
+      env: SCRIPT=cmake-osx
+    - os: osx
+      osx_image: xcode6.4
+      compiler: clang
+      env: SCRIPT=cmake-osx
+    - os: osx
+      osx_image: xcode7
+      compiler: clang
+      env: SCRIPT=cmake-osx
+    - os: osx
+      osx_image: xcode7.1
+      compiler: clang
+      env: SCRIPT=cmake-osx
+    - os: osx
+      osx_image: xcode7.2
+      compiler: clang
+      env: SCRIPT=cmake-osx
+    - os: osx
+      osx_image: xcode7.3
+      compiler: clang
+      env: SCRIPT=cmake-osx
+    - env: SCRIPT=arduino VERSION=1.5.8 BOARD=arduino:avr:uno
+    - env: SCRIPT=arduino VERSION=1.6.7 BOARD=arduino:avr:uno
+    - env: SCRIPT=arduino VERSION=1.6.8 BOARD=arduino:avr:uno
+    - env: SCRIPT=arduino VERSION=1.6.9 BOARD=arduino:avr:uno
+    - env: SCRIPT=platformio BOARD=uno
+    - env: SCRIPT=platformio BOARD=due
+    - env: SCRIPT=platformio BOARD=esp01
+    - env: SCRIPT=platformio BOARD=teensy31
+cache:
+  directories:
+    - "~/.platformio"
+script: scripts/travis/$SCRIPT.sh

lib/ArduinoJson/ArduinoJson.h

@@ -0,0 +1,8 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#include "include/ArduinoJson.h"

lib/ArduinoJson/CHANGELOG.md

@@ -0,0 +1,303 @@
+ArduinoJson: change log
+=======================
+
+v5.6.4
+------
+
+* Fixed error in float serialization (issue #324)
+
+v5.6.3
+------
+
+* Improved speed of float serialization (about twice faster)
+* Added `as<JsonArray>()` as a synonym for `as<JsonArray&>()`... (issue #291)
+* Fixed `call of overloaded isinf(double&) is ambiguous` (issue #284)
+
+v5.6.2
+------
+
+* Fixed build when another lib does `#undef isnan` (issue #284)
+
+v5.6.1
+------
+
+* Added missing `#pragma once` (issue #310)
+
+v5.6.0
+------
+
+* ArduinoJson is now a header-only library (issue #199)
+
+v5.5.1
+------
+
+* Fixed compilation error with Intel Galileo (issue #299)
+
+v5.5.0
+------
+
+* Added `JsonVariant::success()` (issue #279)
+* Renamed `JsonVariant::invalid<T>()` to `JsonVariant::defaultValue<T>()`
+
+v5.4.0
+------
+
+* Changed `::String` to `ArduinoJson::String` (issue #275)
+* Changed `::Print` to `ArduinoJson::Print` too
+
+v5.3.0
+------
+
+* Added custom implementation of `ftoa` (issues #266, #267, #269 and #270)
+* Added `JsonVariant JsonBuffer::parse()` (issue #265)
+* Fixed `unsigned long` printed as `signed long` (issue #170)
+
+v5.2.0
+------
+
+* Added `JsonVariant::as<char*>()` as a synonym for `JsonVariant::as<const char*>()` (issue #257)
+* Added example `JsonHttpClient` (issue #256)
+* Added `JsonArray::copyTo()` and `JsonArray::copyFrom()` (issue #254)
+* Added `RawJson()` to insert pregenerated JSON portions (issue #259)
+
+v5.1.1
+------
+
+* Removed `String` duplication when one replaces a value in a `JsonObject` (PR #232 by @ulion)
+
+v5.1.0
+------
+
+* Added support of `long long` (issue #171)
+* Moved all build settings to `ArduinoJson/Configuration.hpp`
+
+**BREAKING CHANGE**:
+If you defined `ARDUINOJSON_ENABLE_STD_STREAM`, you now need to define it to `1`.
+
+v5.0.8
+------
+
+* Made the library compatible with [PlatformIO](http://platformio.org/) (issue #181)
+* Fixed `JsonVariant::is<bool>()` that was incorrectly returning false (issue #214)
+
+v5.0.7
+------
+
+* Made library easier to use from a CMake project: simply `add_subdirectory(ArduinoJson/src)`
+* Changed `String` to be a `typedef` of `std::string` (issues #142 and #161)
+
+**BREAKING CHANGES**:
+- `JsonVariant(true).as<String>()` now returns `"true"` instead of `"1"`
+- `JsonVariant(false).as<String>()` now returns `"false"` instead of `"0"`
+
+v5.0.6
+------
+
+* Added parameter to `DynamicJsonBuffer` constructor to set initial size (issue #152)
+* Fixed warning about library category in Arduino 1.6.6 (issue #147)
+* Examples: Added a loop to wait for serial port to be ready (issue #156)
+
+v5.0.5
+------
+
+* Added overload `JsonObjectSuscript::set(value, decimals)` (issue #143)
+* Use `float` instead of `double` to reduce the size of `JsonVariant` (issue #134)
+
+v5.0.4
+------
+
+* Fixed ambiguous overload with `JsonArraySubscript` and `JsonObjectSubscript` (issue #122)
+
+v5.0.3
+------
+
+* Fixed `printTo(String)` which wrote numbers instead of strings (issue #120)
+* Fixed return type of `JsonArray::is<T>()` and some others (issue #121)
+
+v5.0.2
+------
+
+* Fixed segmentation fault in `parseObject(String)` and `parseArray(String)`, when the
+  `StaticJsonBuffer` is too small to hold a copy of the string
+* Fixed Clang warning "register specifier is deprecated" (issue #102)
+* Fixed GCC warning "declaration shadows a member" (issue #103)
+* Fixed memory alignment, which made ESP8266 crash (issue #104)
+* Fixed compilation on Visual Studio 2010 and 2012 (issue #107)
+
+v5.0.1
+------
+
+* Fixed compilation with Arduino 1.0.6 (issue #99)
+
+v5.0.0
+------
+
+* Added support of `String` class (issues #55, #56, #70, #77)
+* Added `JsonBuffer::strdup()` to make a copy of a string (issues #10, #57)
+* Implicitly call `strdup()` for `String` but not for `char*` (issues #84, #87)
+* Added support of non standard JSON input (issue #44)
+* Added support of comments in JSON input (issue #88)
+* Added implicit cast between numerical types (issues #64, #69, #93)
+* Added ability to read number values as string (issue #90)
+* Redesigned `JsonVariant` to leverage converting constructors instead of assignment operators (issue #66)
+* Switched to new the library layout (requires Arduino 1.0.6 or above)
+
+**BREAKING CHANGES**:
+- `JsonObject::add()` was renamed to `set()`
+- `JsonArray::at()` and `JsonObject::at()` were renamed to `get()`
+- Number of digits of floating point value are now set with `double_with_n_digits()`
+
+**Personal note about the `String` class**:
+Support of the `String` class has been added to the library because many people use it in their programs.
+However, you should not see this as an invitation to use the `String` class.
+The `String` class is **bad** because it uses dynamic memory allocation.
+Compared to static allocation, it compiles to a bigger, slower program, and is less predictable.
+You certainly don't want that in an embedded environment!
+
+v4.6
+----
+
+* Fixed segmentation fault in `DynamicJsonBuffer` when memory allocation fails (issue #92)
+
+v4.5
+----
+
+* Fixed buffer overflow when input contains a backslash followed by a terminator (issue #81)
+
+**Upgrading is recommended** since previous versions contain a potential security risk.
+
+Special thanks to [Giancarlo Canales Barreto](https://github.com/gcanalesb) for finding this nasty bug.
+
+v4.4
+----
+
+* Added `JsonArray::measureLength()` and `JsonObject::measureLength()` (issue #75)
+
+v4.3
+----
+
+* Added `JsonArray::removeAt()` to remove an element of an array (issue #58)
+* Fixed stack-overflow in `DynamicJsonBuffer` when parsing huge JSON files (issue #65)
+* Fixed wrong return value of `parseArray()` and `parseObject()` when allocation fails (issue #68)
+
+v4.2
+----
+
+* Switched back to old library layout (issues #39, #43 and #45)
+* Removed global new operator overload (issue #40, #45 and #46)
+* Added an example with EthernetServer
+
+v4.1
+----
+
+* Added DynamicJsonBuffer (issue #19)
+
+v4.0
+----
+
+* Unified parser and generator API (issue #23)
+* Updated library layout, now requires Arduino 1.0.6 or newer
+
+**BREAKING CHANGE**: API changed significantly, see [Migrating code to the new API](https://github.com/bblanchon/ArduinoJson/wiki/Migrating-code-to-the-new-API).
+
+
+v3.4
+----
+
+* Fixed escaped char parsing (issue #16)
+
+
+v3.3
+----
+
+* Added indented output for the JSON generator (issue #11), see example bellow.
+* Added `IndentedPrint`, a decorator for `Print` to allow indented output
+
+Example:
+
+    JsonOject<2> json;
+    json["key"] = "value";
+    json.prettyPrintTo(Serial);
+
+v3.2
+----
+
+* Fixed a bug when adding nested object in `JsonArray` (bug introduced in v3.1).
+
+v3.1
+----
+
+* Calling `Generator::JsonObject::add()` twice with the same `key` now replaces the `value`
+* Added `Generator::JsonObject::operator[]`, see bellow the new API
+* Added `Generator::JsonObject::remove()` (issue #9)
+
+Old generator API:
+
+	JsonObject<3> root;
+    root.add("sensor", "gps");
+    root.add("time", 1351824120);
+    root.add("data", array);
+
+New generator API:
+
+	JsonObject<3> root;
+    root["sensor"] = "gps";
+    root["time"] = 1351824120;
+    root["data"] = array;
+
+v3.0
+----
+
+* New parser API, see bellow
+* Renamed `JsonHashTable` into `JsonObject`
+* Added iterators for `JsonArray` and `JsonObject` (issue #4)
+
+Old parser API:
+
+    JsonHashTable root = parser.parseHashTable(json);
+
+	char*  sensor    = root.getString("sensor");
+	long   time      = root.getLong("time");
+	double latitude  = root.getArray("data").getDouble(0);
+    double longitude = root.getArray("data").getDouble(1);
+
+New parser API:
+
+	JsonObject root = parser.parse(json);
+
+	char*  sensor    = root["sensor"];
+    long   time      = root["time"];
+    double latitude  = root["data"][0];
+    double longitude = root["data"][1];
+
+v2.1
+----
+
+* Fixed case `#include "jsmn.cpp"` which caused an error in Linux (issue #6)
+* Fixed a buffer overrun in JSON Parser (issue #5)
+
+v2.0
+----
+
+* Added JSON encoding (issue #2)
+* Renamed the library `ArduinoJsonParser` becomes `ArduinoJson`
+
+**Breaking change**: you need to add the following line at the top of your program.
+
+	using namespace ArduinoJson::Parser;
+
+v1.2
+----
+
+* Fixed error in JSON parser example (issue #1)
+
+v1.1
+----
+
+* Example: changed `char* json` into `char[] json` so that the bytes are not write protected
+* Fixed parsing bug when the JSON contains multi-dimensional arrays
+
+v1.0
+----
+
+Initial release

lib/ArduinoJson/CMakeLists.txt

@@ -0,0 +1,21 @@
+# Copyright Benoit Blanchon 2014-2016
+# MIT License
+# 
+# Arduino JSON library
+# https://github.com/bblanchon/ArduinoJson
+# If you like this project, please add a star!
+
+cmake_minimum_required(VERSION 3.0)
+project(ArduinoJson)
+
+enable_testing()
+
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/lib)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/lib)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
+
+if(${COVERAGE})
+	set(CMAKE_CXX_FLAGS "-g -O0 -fprofile-arcs -ftest-coverage")
+endif()
+
+add_subdirectory(test)

lib/ArduinoJson/LICENSE.md

@@ -0,0 +1,10 @@
+The MIT License (MIT)
+---------------------
+
+Copyright © 2014-2016 Benoit BLANCHON
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

lib/ArduinoJson/README.md

@@ -0,0 +1,130 @@
+Arduino JSON library
+====================
+
+[![Build status](https://ci.appveyor.com/api/projects/status/m7s53wav1l0abssg/branch/master?svg=true)](https://ci.appveyor.com/project/bblanchon/arduinojson/branch/master) [![Build Status](https://travis-ci.org/bblanchon/ArduinoJson.svg?branch=master)](https://travis-ci.org/bblanchon/ArduinoJson) [![Coverage Status](https://img.shields.io/coveralls/bblanchon/ArduinoJson.svg)](https://coveralls.io/r/bblanchon/ArduinoJson?branch=master) [![Star this project](http://githubbadges.com/star.svg?user=bblanchon&repo=ArduinoJson&style=flat&color=fff&background=007ec6)](https://github.com/bblanchon/ArduinoJson)
+
+*An elegant and efficient JSON library for embedded systems.*
+
+It's designed to have the most intuitive API, the smallest footprint and works without any allocation on the heap (no malloc).
+
+It has been written with Arduino in mind, but it isn't linked to Arduino libraries so you can use this library in any other C++ project.
+
+Features
+--------
+
+* JSON decoding (comments are supported)
+* JSON encoding (with optional indentation)
+* Elegant API, very easy to use
+* Fixed memory allocation (zero malloc)
+* No data duplication (zero copy)
+* Portable (written in C++98)
+* Self-contained (no external dependency)
+* Small footprint
+* Header-only library
+* MIT License
+
+Works on
+--------
+
+* All Arduino boards (Uno, Due, Mini, Micro, Yun...)
+* ESP8266
+* Teensy
+* Intel Edison and Galileo
+* PlatformIO
+* Energia
+* RedBearLab boards (BLE Nano...)
+* Computers (Windows, Linux, OSX...)
+
+See [FAQ: Compatibility issues](https://github.com/bblanchon/ArduinoJson/wiki/Compatibility-issues)
+
+Quick start
+-----------
+
+#### Decoding / Parsing
+
+```c++
+char json[] = "{\"sensor\":\"gps\",\"time\":1351824120,\"data\":[48.756080,2.302038]}";
+
+StaticJsonBuffer<200> jsonBuffer;
+
+JsonObject& root = jsonBuffer.parseObject(json);
+
+const char* sensor = root["sensor"];
+long time          = root["time"];
+double latitude    = root["data"][0];
+double longitude   = root["data"][1];
+```
+
+#### Encoding / Generating
+
+```c++
+StaticJsonBuffer<200> jsonBuffer;
+
+JsonObject& root = jsonBuffer.createObject();
+root["sensor"] = "gps";
+root["time"] = 1351824120;
+
+JsonArray& data = root.createNestedArray("data");
+data.add(48.756080, 6);  // 6 is the number of decimals to print
+data.add(2.302038, 6);   // if not specified, 2 digits are printed
+
+root.printTo(Serial);
+// This prints:
+// {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}
+```
+
+
+Documentation
+-------------
+
+The documentation is available online in the [Arduino JSON wiki](https://github.com/bblanchon/ArduinoJson/wiki)
+
+Testimonials
+------------
+
+From Arduino's Forum user `jflaplante`:
+> I tried aJson json-arduino before trying your library. I always ran into memory problem after a while.
+> I have no such problem so far with your library. It is working perfectly with my web services.
+
+From Arduino's Forum user `gbathree`:
+> Thanks so much - this is an awesome library!  If you want to see what we're doing with it - the project is located at www.photosynq.org.
+
+From StackOverflow user `thegreendroid`:
+> It has a really elegant, simple API and it works like a charm on embedded and Windows/Linux platforms. We recently started using this on an embedded project and I can vouch for its quality.
+
+From GitHub user `zacsketches`:
+> Thanks for a great library!!!
+> I've been watching you consistently develop this library over the past six months, and I used it today for a publish and subscribe architecture designed to help hobbyists move into more advanced robotics. Your library allowed me to implement remote subscription in order to facilitate multi-processor robots.
+> ArduinoJson saved me a week's worth of time!!
+
+[From Reddit user `erm_what_`](https://www.reddit.com/r/arduino/comments/3jj6ep/announcing_arduinojson_50/cusjk8c):
+> This is a great library and I wouldn't be able to do the project I'm doing without it. I completely recommend it.
+
+[From Reddit user `makerhacks`](https://www.reddit.com/r/arduino/comments/3jj6ep/announcing_arduinojson_50/cusqg7b):
+> I am just starting an ESP8266 clock project and now I can output JSON from my server script and interpret it painlessly.
+
+[From Twitter user `@hemalchevli`](https://twitter.com/hemalchevli/status/715788439397011456):
+> ArduinoJson library should be used as a benchmark/reference for making libraries. Truly elegant.
+
+Donators
+--------
+
+Special thanks to the following persons and companies who made generous donations to the library author:
+
+* Robert Murphy <img alt='USA' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1fa-1f1f8.svg' width='18' height='18'>
+* Surge Communications <img alt='USA' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1fa-1f1f8.svg' width='18' height='18'>
+* Alex Scott <img alt='United Kingdom' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1ec-1f1e7.svg' width='18' height='18'>
+* Firepick Services LLC <img alt='USA' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1fa-1f1f8.svg' width='18' height='18'>
+* A B Doodkorte <img alt='Netherlands' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1f3-1f1f1.svg' width='18' height='18'>
+* Scott Smith <img alt='USA' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1fa-1f1f8.svg' width='18' height='18'>
+* Johann Stieger <img alt='Austria' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1e6-1f1f9.svg' width='18' height='18'>
+* Gustavo Donizeti Gini <img alt='Brazil' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1e7-1f1f7.svg' width='18' height='18'>
+* Charles-Henri Hallard <img alt='France' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1eb-1f1f7.svg' width='18' height='18'>
+* Martijn van den Burg <img alt='Netherlands' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1f3-1f1f1.svg' width='18' height='18'>
+* Nick Koumaris <img alt='Greece' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1ec-1f1f7.svg' width='18' height='18'>
+* Jon Williams <img alt='USA' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1fa-1f1f8.svg' width='18' height='18'>
+* Kestutis Liaugminas <img alt='Lithuania' src='https://cdnjs.cloudflare.com/ajax/libs/emojione/2.1.4/assets/svg/1f1f1-1f1f9.svg' width='18' height='18'>
+
+---
+
+Found this library useful? Please star this project or [help me back with a donation!](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=donate%40benoitblanchon%2efr&lc=GB&item_name=Benoit%20Blanchon&item_number=Arduino%20JSON&currency_code=EUR&bn=PP%2dDonationsBF%3abtn_donate_LG%2egif%3aNonHosted) :smile:

lib/ArduinoJson/appveyor.yml

@@ -0,0 +1,18 @@
+version: 5.6.4.{build}
+environment:
+  matrix:
+  - CMAKE_GENERATOR: Visual Studio 14 2015
+  - CMAKE_GENERATOR: Visual Studio 12 2013
+  - CMAKE_GENERATOR: Visual Studio 11 2012
+  - CMAKE_GENERATOR: Visual Studio 10 2010
+#  - CMAKE_GENERATOR: MinGW Makefiles
+# Note: Disabled because of unexplicated error -1073741511
+# This used to work fine with GCC 4.8.2 then failed after they upgraded to GCC 4.9.3
+configuration: Debug
+before_build:
+- set PATH=C:\MinGW\bin;%PATH:C:\Program Files\Git\usr\bin;=% # Workaround for CMake not wanting sh.exe on PATH for MinGW
+- cmake -DCMAKE_BUILD_TYPE=%CONFIGURATION% -G "%CMAKE_GENERATOR%" .
+build_script:
+- cmake --build . --config %CONFIGURATION%
+test_script:
+- ctest -V .

lib/ArduinoJson/examples/IndentedPrintExample/IndentedPrintExample.ino

@@ -0,0 +1,35 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#include <ArduinoJson.h>
+
+using namespace ArduinoJson::Internals;
+
+void setup() {
+  Serial.begin(9600);
+  while (!Serial) {
+    // wait serial port initialization
+  }
+
+  IndentedPrint serial(Serial);
+  serial.setTabSize(4);
+
+  serial.println("This is at indentation 0");
+  serial.indent();
+  serial.println("This is at indentation 1");
+  serial.println("This is also at indentation 1");
+  serial.indent();
+  serial.println("This is at indentation 2");
+
+  serial.unindent();
+  serial.unindent();
+  serial.println("This is back at indentation 0");
+}
+
+void loop() {
+  // not used in this example
+}

lib/ArduinoJson/examples/JsonGeneratorExample/JsonGeneratorExample.ino

@@ -0,0 +1,70 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#include <ArduinoJson.h>
+
+void setup() {
+  Serial.begin(9600);
+  while (!Serial) {
+    // wait serial port initialization
+  }
+
+  // Memory pool for JSON object tree.
+  //
+  // Inside the brackets, 200 is the size of the pool in bytes.
+  // If the JSON object is more complex, you need to increase that value.
+  StaticJsonBuffer<200> jsonBuffer;
+
+  // StaticJsonBuffer allocates memory on the stack, it can be
+  // replaced by DynamicJsonBuffer which allocates in the heap.
+  // It's simpler but less efficient.
+  //
+  // DynamicJsonBuffer  jsonBuffer;
+
+  // Create the root of the object tree.
+  //
+  // It's a reference to the JsonObject, the actual bytes are inside the
+  // JsonBuffer with all the other nodes of the object tree.
+  // Memory is freed when jsonBuffer goes out of scope.
+  JsonObject& root = jsonBuffer.createObject();
+
+  // Add values in the object
+  //
+  // Most of the time, you can rely on the implicit casts.
+  // In other case, you can do root.set<long>("time", 1351824120);
+  root["sensor"] = "gps";
+  root["time"] = 1351824120;
+
+  // Add a nested array.
+  //
+  // It's also possible to create the array separately and add it to the
+  // JsonObject but it's less efficient.
+  JsonArray& data = root.createNestedArray("data");
+  data.add(double_with_n_digits(48.756080, 6));
+  data.add(double_with_n_digits(2.302038, 6));
+
+  root.printTo(Serial);
+  // This prints:
+  // {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}
+
+  Serial.println();
+
+  root.prettyPrintTo(Serial);
+  // This prints:
+  // {
+  //   "sensor": "gps",
+  //   "time": 1351824120,
+  //   "data": [
+  //     48.756080,
+  //     2.302038
+  //   ]
+  // }
+}
+
+void loop() {
+  // not used in this example
+}

lib/ArduinoJson/examples/JsonHttpClient/JsonHttpClient.ino

@@ -0,0 +1,195 @@
+// Sample Arduino Json Web Client
+// Downloads and parse http://jsonplaceholder.typicode.com/users/1
+//
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#include <ArduinoJson.h>
+#include <SPI.h>
+#include <Ethernet.h>
+
+EthernetClient client;
+
+const char* server = "jsonplaceholder.typicode.com";  // server's address
+const char* resource = "/users/1";                    // http resource
+const unsigned long BAUD_RATE = 9600;                 // serial connection speed
+const unsigned long HTTP_TIMEOUT = 10000;  // max respone time from server
+const size_t MAX_CONTENT_SIZE = 512;       // max size of the HTTP response
+
+// The type of data that we want to extract from the page
+struct UserData {
+  char name[32];
+  char company[32];
+};
+
+// ARDUINO entry point #1: runs once when you press reset or power the board
+void setup() {
+  initSerial();
+  initEthernet();
+}
+
+// ARDUINO entry point #2: runs over and over again forever
+void loop() {
+  if (connect(server)) {
+    if (sendRequest(server, resource) && skipResponseHeaders()) {
+      char response[MAX_CONTENT_SIZE];
+      readReponseContent(response, sizeof(response));
+
+      UserData userData;
+      if (parseUserData(response, &userData)) {
+        printUserData(&userData);
+      }
+    }
+    disconnect();
+  }
+  wait();
+}
+
+// Initialize Serial port
+void initSerial() {
+  Serial.begin(BAUD_RATE);
+  while (!Serial) {
+    ;  // wait for serial port to initialize
+  }
+  Serial.println("Serial ready");
+}
+
+// Initialize Ethernet library
+void initEthernet() {
+  byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
+  if (!Ethernet.begin(mac)) {
+    Serial.println("Failed to configure Ethernet");
+    return;
+  }
+  Serial.println("Ethernet ready");
+  delay(1000);
+}
+
+// Open connection to the HTTP server
+bool connect(const char* hostName) {
+  Serial.print("Connect to ");
+  Serial.println(hostName);
+
+  bool ok = client.connect(hostName, 80);
+
+  Serial.println(ok ? "Connected" : "Connection Failed!");
+  return ok;
+}
+
+// Send the HTTP GET request to the server
+bool sendRequest(const char* host, const char* resource) {
+  Serial.print("GET ");
+  Serial.println(resource);
+
+  client.print("GET ");
+  client.print(resource);
+  client.println(" HTTP/1.1");
+  client.print("Host: ");
+  client.println(server);
+  client.println("Connection: close");
+  client.println();
+
+  return true;
+}
+
+// Skip HTTP headers so that we are at the beginning of the response's body
+bool skipResponseHeaders() {
+  // HTTP headers end with an empty line
+  char endOfHeaders[] = "\r\n\r\n";
+
+  client.setTimeout(HTTP_TIMEOUT);
+  bool ok = client.find(endOfHeaders);
+
+  if (!ok) {
+    Serial.println("No response or invalid response!");
+  }
+
+  return ok;
+}
+
+// Read the body of the response from the HTTP server
+void readReponseContent(char* content, size_t maxSize) {
+  size_t length = client.readBytes(content, maxSize);
+  content[length] = 0;
+  Serial.println(content);
+}
+
+// Parse the JSON from the input string and extract the interesting values
+// Here is the JSON we need to parse
+// {
+//   "id": 1,
+//   "name": "Leanne Graham",
+//   "username": "Bret",
+//   "email": "Sincere@april.biz",
+//   "address": {
+//     "street": "Kulas Light",
+//     "suite": "Apt. 556",
+//     "city": "Gwenborough",
+//     "zipcode": "92998-3874",
+//     "geo": {
+//       "lat": "-37.3159",
+//       "lng": "81.1496"
+//     }
+//   },
+//   "phone": "1-770-736-8031 x56442",
+//   "website": "hildegard.org",
+//   "company": {
+//     "name": "Romaguera-Crona",
+//     "catchPhrase": "Multi-layered client-server neural-net",
+//     "bs": "harness real-time e-markets"
+//   }
+// }
+bool parseUserData(char* content, struct UserData* userData) {
+  // Compute optimal size of the JSON buffer according to what we need to parse.
+  // This is only required if you use StaticJsonBuffer.
+  const size_t BUFFER_SIZE =
+      JSON_OBJECT_SIZE(8)     // the root object has 8 elements
+      + JSON_OBJECT_SIZE(5)   // the "address" object has 5 elements
+      + JSON_OBJECT_SIZE(2)   // the "geo" object has 2 elements
+      + JSON_OBJECT_SIZE(3);  // the "company" object has 3 elements
+
+  // Allocate a temporary memory pool on the stack
+  StaticJsonBuffer<BUFFER_SIZE> jsonBuffer;
+  // If the memory pool is too big for the stack, use this instead:
+  // DynamicJsonBuffer jsonBuffer;
+
+  JsonObject& root = jsonBuffer.parseObject(content);
+
+  if (!root.success()) {
+    Serial.println("JSON parsing failed!");
+    return false;
+  }
+
+  // Here were copy the strings we're interested in
+  strcpy(userData->name, root["name"]);
+  strcpy(userData->company, root["company"]["name"]);
+  // It's not mandatory to make a copy, you could just use the pointers
+  // Since, they are pointing inside the "content" buffer, so you need to make
+  // sure it's still in memory when you read the string
+
+  return true;
+}
+
+// Print the data extracted from the JSON
+void printUserData(const struct UserData* userData) {
+  Serial.print("Name = ");
+  Serial.println(userData->name);
+  Serial.print("Company = ");
+  Serial.println(userData->company);
+}
+
+// Close the connection with the HTTP server
+void disconnect() {
+  Serial.println("Disconnect");
+  client.stop();
+}
+
+// Pause for a 1 minute
+void wait() {
+  Serial.println("Wait 60 seconds");
+  delay(60000);
+}

lib/ArduinoJson/examples/JsonParserExample/JsonParserExample.ino

@@ -0,0 +1,67 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#include <ArduinoJson.h>
+
+void setup() {
+  Serial.begin(9600);
+  while (!Serial) {
+    // wait serial port initialization
+  }
+
+  // Memory pool for JSON object tree.
+  //
+  // Inside the brackets, 200 is the size of the pool in bytes,
+  // If the JSON object is more complex, you need to increase that value.
+  StaticJsonBuffer<200> jsonBuffer;
+
+  // StaticJsonBuffer allocates memory on the stack, it can be
+  // replaced by DynamicJsonBuffer which allocates in the heap.
+  // It's simpler but less efficient.
+  //
+  // DynamicJsonBuffer  jsonBuffer;
+
+  // JSON input string.
+  //
+  // It's better to use a char[] as shown here.
+  // If you use a const char* or a String, ArduinoJson will
+  // have to make a copy of the input in the JsonBuffer.
+  char json[] =
+      "{\"sensor\":\"gps\",\"time\":1351824120,\"data\":[48.756080,2.302038]}";
+
+  // Root of the object tree.
+  //
+  // It's a reference to the JsonObject, the actual bytes are inside the
+  // JsonBuffer with all the other nodes of the object tree.
+  // Memory is freed when jsonBuffer goes out of scope.
+  JsonObject& root = jsonBuffer.parseObject(json);
+
+  // Test if parsing succeeds.
+  if (!root.success()) {
+    Serial.println("parseObject() failed");
+    return;
+  }
+
+  // Fetch values.
+  //
+  // Most of the time, you can rely on the implicit casts.
+  // In other case, you can do root["time"].as<long>();
+  const char* sensor = root["sensor"];
+  long time = root["time"];
+  double latitude = root["data"][0];
+  double longitude = root["data"][1];
+
+  // Print values.
+  Serial.println(sensor);
+  Serial.println(time);
+  Serial.println(latitude, 6);
+  Serial.println(longitude, 6);
+}
+
+void loop() {
+  // not used in this example
+}

lib/ArduinoJson/examples/JsonServer/JsonServer.ino

@@ -0,0 +1,74 @@
+// Sample Arduino Json Web Server
+// Created by Benoit Blanchon.
+// Heavily inspired by "Web Server" from David A. Mellis and Tom Igoe
+
+#include <SPI.h>
+#include <Ethernet.h>
+#include <ArduinoJson.h>
+
+byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
+IPAddress ip(192, 168, 0, 177);
+EthernetServer server(80);
+
+bool readRequest(EthernetClient& client) {
+  bool currentLineIsBlank = true;
+  while (client.connected()) {
+    if (client.available()) {
+      char c = client.read();
+      if (c == '\n' && currentLineIsBlank) {
+        return true;
+      } else if (c == '\n') {
+        currentLineIsBlank = true;
+      } else if (c != '\r') {
+        currentLineIsBlank = false;
+      }
+    }
+  }
+  return false;
+}
+
+JsonObject& prepareResponse(JsonBuffer& jsonBuffer) {
+  JsonObject& root = jsonBuffer.createObject();
+
+  JsonArray& analogValues = root.createNestedArray("analog");
+  for (int pin = 0; pin < 6; pin++) {
+    int value = analogRead(pin);
+    analogValues.add(value);
+  }
+
+  JsonArray& digitalValues = root.createNestedArray("digital");
+  for (int pin = 0; pin < 14; pin++) {
+    int value = digitalRead(pin);
+    digitalValues.add(value);
+  }
+
+  return root;
+}
+
+void writeResponse(EthernetClient& client, JsonObject& json) {
+  client.println("HTTP/1.1 200 OK");
+  client.println("Content-Type: application/json");
+  client.println("Connection: close");
+  client.println();
+
+  json.prettyPrintTo(client);
+}
+
+void setup() {
+  Ethernet.begin(mac, ip);
+  server.begin();
+}
+
+void loop() {
+  EthernetClient client = server.available();
+  if (client) {
+    bool success = readRequest(client);
+    if (success) {
+      StaticJsonBuffer<500> jsonBuffer;
+      JsonObject& json = prepareResponse(jsonBuffer);
+      writeResponse(client, json);
+    }
+    delay(1);
+    client.stop();
+  }
+}

lib/ArduinoJson/examples/JsonUdpBeacon/JsonUdpBeacon.ino

@@ -0,0 +1,55 @@
+// Send a JSON object on UDP at regular interval
+//
+// You can easily test this program with netcat:
+// $ nc -ulp 8888
+//
+// by Benoit Blanchon, MIT License 2015-2016
+
+#include <SPI.h>
+#include <Ethernet.h>
+#include <ArduinoJson.h>
+
+byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
+IPAddress localIp(192, 168, 0, 177);
+IPAddress remoteIp(192, 168, 0, 109);
+unsigned int remotePort = 8888;
+unsigned localPort = 8888;
+EthernetUDP udp;
+
+JsonObject& buildJson(JsonBuffer& jsonBuffer) {
+  JsonObject& root = jsonBuffer.createObject();
+
+  JsonArray& analogValues = root.createNestedArray("analog");
+  for (int pin = 0; pin < 6; pin++) {
+    int value = analogRead(pin);
+    analogValues.add(value);
+  }
+
+  JsonArray& digitalValues = root.createNestedArray("digital");
+  for (int pin = 0; pin < 14; pin++) {
+    int value = digitalRead(pin);
+    digitalValues.add(value);
+  }
+
+  return root;
+}
+
+void sendJson(JsonObject& json) {
+  udp.beginPacket(remoteIp, remotePort);
+  json.printTo(udp);
+  udp.println();
+  udp.endPacket();
+}
+
+void setup() {
+  Ethernet.begin(mac, localIp);
+  udp.begin(localPort);
+}
+
+void loop() {
+  delay(1000);
+
+  StaticJsonBuffer<300> jsonBuffer;
+  JsonObject& json = buildJson(jsonBuffer);
+  sendJson(json);
+}

lib/ArduinoJson/include/ArduinoJson.h

@@ -0,0 +1,9 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#include "ArduinoJson.hpp"
+using namespace ArduinoJson;

lib/ArduinoJson/include/ArduinoJson.hpp

@@ -0,0 +1,21 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "ArduinoJson/DynamicJsonBuffer.hpp"
+#include "ArduinoJson/JsonArray.hpp"
+#include "ArduinoJson/JsonObject.hpp"
+#include "ArduinoJson/StaticJsonBuffer.hpp"
+
+#include "ArduinoJson/Internals/JsonParser.ipp"
+#include "ArduinoJson/JsonArray.ipp"
+#include "ArduinoJson/JsonBuffer.ipp"
+#include "ArduinoJson/JsonObject.ipp"
+#include "ArduinoJson/JsonVariant.ipp"
+
+using namespace ArduinoJson;

lib/ArduinoJson/include/ArduinoJson/Configuration.hpp

@@ -0,0 +1,89 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#ifdef ARDUINO  // assume this is an embedded platform
+
+// store using float instead of double to reduce the memory usage (issue #134)
+#ifndef ARDUINOJSON_USE_DOUBLE
+#define ARDUINOJSON_USE_DOUBLE 0
+#endif
+
+// store using a long because it usually match the size of a float.
+#ifndef ARDUINOJSON_USE_LONG_LONG
+#define ARDUINOJSON_USE_LONG_LONG 0
+#endif
+#ifndef ARDUINOJSON_USE_INT64
+#define ARDUINOJSON_USE_INT64 0
+#endif
+
+// arduino has its own implementation of String to replace std::string
+#ifndef ARDUINOJSON_USE_ARDUINO_STRING
+#define ARDUINOJSON_USE_ARDUINO_STRING 1
+#endif
+
+// arduino doesn't support STL stream
+#ifndef ARDUINOJSON_ENABLE_STD_STREAM
+#define ARDUINOJSON_ENABLE_STD_STREAM 0
+#endif
+
+#ifndef ARDUINOJSON_ENABLE_ALIGNMENT
+#ifdef ARDUINO_ARCH_AVR
+// alignment isn't needed for 8-bit AVR
+#define ARDUINOJSON_ENABLE_ALIGNMENT 0
+#else
+// but must processor needs pointer to be align on word size
+#define ARDUINOJSON_ENABLE_ALIGNMENT 1
+#endif
+#endif
+
+#else  // assume this is a computer
+
+// on a computer we have plenty of memory so we can use doubles
+#ifndef ARDUINOJSON_USE_DOUBLE
+#define ARDUINOJSON_USE_DOUBLE 1
+#endif
+
+// use long long when available
+#ifndef ARDUINOJSON_USE_LONG_LONG
+#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1800)
+#define ARDUINOJSON_USE_LONG_LONG 1
+#else
+#define ARDUINOJSON_USE_LONG_LONG 0
+#endif
+#endif
+
+// use _int64 on old versions of Visual Studio
+#ifndef ARDUINOJSON_USE_INT64
+#if defined(_MSC_VER) && _MSC_VER <= 1700
+#define ARDUINOJSON_USE_INT64 1
+#else
+#define ARDUINOJSON_USE_INT64 0
+#endif
+#endif
+
+// on a computer, we can use std::string
+#ifndef ARDUINOJSON_USE_ARDUINO_STRING
+#define ARDUINOJSON_USE_ARDUINO_STRING 0
+#endif
+
+// on a computer, we can assume that the STL is there
+#ifndef ARDUINOJSON_ENABLE_STD_STREAM
+#define ARDUINOJSON_ENABLE_STD_STREAM 1
+#endif
+
+#ifndef ARDUINOJSON_ENABLE_ALIGNMENT
+// even if not required, most cpu's are faster with aligned pointers
+#define ARDUINOJSON_ENABLE_ALIGNMENT 1
+#endif
+
+#endif
+
+#if ARDUINOJSON_USE_LONG_LONG && ARDUINOJSON_USE_INT64
+#error ARDUINOJSON_USE_LONG_LONG and ARDUINOJSON_USE_INT64 cannot be set together
+#endif

lib/ArduinoJson/include/ArduinoJson/DynamicJsonBuffer.hpp

@@ -0,0 +1,18 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "Internals/BlockJsonBuffer.hpp"
+
+namespace ArduinoJson {
+// Implements a JsonBuffer with dynamic memory allocation.
+// You are strongly encouraged to consider using StaticJsonBuffer which is much
+// more suitable for embedded systems.
+typedef Internals::BlockJsonBuffer<Internals::DefaultAllocator>
+    DynamicJsonBuffer;
+}

lib/ArduinoJson/include/ArduinoJson/Internals/BlockJsonBuffer.hpp

@@ -0,0 +1,115 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../JsonBuffer.hpp"
+
+#include <stdlib.h>
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
+#elif defined(__GNUC__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#pragma GCC diagnostic push
+#endif
+#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
+#endif
+
+namespace ArduinoJson {
+namespace Internals {
+class DefaultAllocator {
+ public:
+  void* allocate(size_t size) {
+    return malloc(size);
+  }
+  void deallocate(void* pointer) {
+    free(pointer);
+  }
+};
+
+template <typename TAllocator>
+class BlockJsonBuffer : public JsonBuffer {
+  struct Block;
+  struct EmptyBlock {
+    Block* next;
+    size_t capacity;
+    size_t size;
+  };
+  struct Block : EmptyBlock {
+    uint8_t data[1];
+  };
+
+ public:
+  BlockJsonBuffer(size_t initialSize = 256)
+      : _head(NULL), _nextBlockSize(initialSize) {}
+
+  ~BlockJsonBuffer() {
+    Block* currentBlock = _head;
+
+    while (currentBlock != NULL) {
+      Block* nextBlock = currentBlock->next;
+      _allocator.deallocate(currentBlock);
+      currentBlock = nextBlock;
+    }
+  }
+
+  size_t size() const {
+    size_t total = 0;
+    for (const Block* b = _head; b; b = b->next) total += b->size;
+    return total;
+  }
+
+  virtual void* alloc(size_t bytes) {
+    return canAllocInHead(bytes) ? allocInHead(bytes) : allocInNewBlock(bytes);
+  }
+
+ private:
+  bool canAllocInHead(size_t bytes) const {
+    return _head != NULL && _head->size + bytes <= _head->capacity;
+  }
+
+  void* allocInHead(size_t bytes) {
+    void* p = _head->data + _head->size;
+    _head->size += round_size_up(bytes);
+    return p;
+  }
+
+  void* allocInNewBlock(size_t bytes) {
+    size_t capacity = _nextBlockSize;
+    if (bytes > capacity) capacity = bytes;
+    if (!addNewBlock(capacity)) return NULL;
+    _nextBlockSize *= 2;
+    return allocInHead(bytes);
+  }
+
+  bool addNewBlock(size_t capacity) {
+    size_t bytes = sizeof(EmptyBlock) + capacity;
+    Block* block = static_cast<Block*>(_allocator.allocate(bytes));
+    if (block == NULL) return false;
+    block->capacity = capacity;
+    block->size = 0;
+    block->next = _head;
+    _head = block;
+    return true;
+  }
+
+  TAllocator _allocator;
+  Block* _head;
+  size_t _nextBlockSize;
+};
+}
+}
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#elif defined(__GNUC__)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#pragma GCC diagnostic pop
+#endif
+#endif

lib/ArduinoJson/include/ArduinoJson/Internals/Comments.hpp

@@ -0,0 +1,56 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+namespace ArduinoJson {
+namespace Internals {
+inline const char *skipCStyleComment(const char *ptr) {
+  ptr += 2;
+  for (;;) {
+    if (ptr[0] == '\0') return ptr;
+    if (ptr[0] == '*' && ptr[1] == '/') return ptr + 2;
+    ptr++;
+  }
+}
+
+inline const char *skipCppStyleComment(const char *ptr) {
+  ptr += 2;
+  for (;;) {
+    if (ptr[0] == '\0' || ptr[0] == '\n') return ptr;
+    ptr++;
+  }
+}
+
+inline const char *skipSpacesAndComments(const char *ptr) {
+  for (;;) {
+    switch (ptr[0]) {
+      case ' ':
+      case '\t':
+      case '\r':
+      case '\n':
+        ptr++;
+        continue;
+      case '/':
+        switch (ptr[1]) {
+          case '*':
+            ptr = skipCStyleComment(ptr);
+            break;
+          case '/':
+            ptr = skipCppStyleComment(ptr);
+            break;
+          default:
+            return ptr;
+        }
+        break;
+      default:
+        return ptr;
+    }
+  }
+}
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/DummyPrint.hpp

@@ -0,0 +1,21 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../Print.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+// A dummy Print implementation used in JsonPrintable::measureLength()
+class DummyPrint : public Print {
+ public:
+  virtual size_t write(uint8_t) { return 1; }
+};
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/DynamicStringBuilder.hpp

@@ -0,0 +1,33 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../Print.hpp"
+#include "../String.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+// A Print implementation that allows to write in a String
+class DynamicStringBuilder : public Print {
+ public:
+  DynamicStringBuilder(String &str) : _str(str) {}
+
+  virtual size_t write(uint8_t c) {
+    // Need to cast to char, otherwise String will print a number (issue #120)
+    _str += static_cast<char>(c);
+    return 1;
+  }
+
+ private:
+  DynamicStringBuilder &operator=(const DynamicStringBuilder &);
+
+  String &_str;
+};
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/Encoding.hpp

@@ -0,0 +1,42 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../Print.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+class Encoding {
+ public:
+  // Optimized for code size on a 8-bit AVR
+  static char escapeChar(char c) {
+    const char *p = escapeTable(false);
+    while (p[0] && p[1] != c) {
+      p += 2;
+    }
+    return p[0];
+  }
+
+  // Optimized for code size on a 8-bit AVR
+  static char unescapeChar(char c) {
+    const char *p = escapeTable(true);
+    for (;;) {
+      if (p[0] == '\0') return c;
+      if (p[0] == c) return p[1];
+      p += 2;
+    }
+  }
+
+ private:
+  static const char *escapeTable(bool excludeIdenticals) {
+    return &"\"\"\\\\b\bf\fn\nr\rt\t"[excludeIdenticals ? 4 : 0];
+  }
+};
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/IndentedPrint.hpp

@@ -0,0 +1,65 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../Print.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+// Decorator on top of Print to allow indented output.
+// This class is used by JsonPrintable::prettyPrintTo() but can also be used
+// for your own purpose, like logging.
+class IndentedPrint : public Print {
+ public:
+  explicit IndentedPrint(Print &p) : sink(&p) {
+    level = 0;
+    tabSize = 2;
+    isNewLine = true;
+  }
+
+  virtual size_t write(uint8_t c) {
+    size_t n = 0;
+    if (isNewLine) n += writeTabs();
+    n += sink->write(c);
+    isNewLine = c == '\n';
+    return n;
+  }
+
+  // Adds one level of indentation
+  void indent() {
+    if (level < MAX_LEVEL) level++;
+  }
+
+  // Removes one level of indentation
+  void unindent() {
+    if (level > 0) level--;
+  }
+
+  // Set the number of space printed for each level of indentation
+  void setTabSize(uint8_t n) {
+    if (n < MAX_TAB_SIZE) tabSize = n & MAX_TAB_SIZE;
+  }
+
+ private:
+  Print *sink;
+  uint8_t level : 4;
+  uint8_t tabSize : 3;
+  bool isNewLine : 1;
+
+  size_t writeTabs() {
+    size_t n = 0;
+    for (int i = 0; i < level * tabSize; i++) n += sink->write(' ');
+    return n;
+  }
+
+  static const int MAX_LEVEL = 15;    // because it's only 4 bits
+  static const int MAX_TAB_SIZE = 7;  // because it's only 3 bits
+};
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/JsonBufferAllocated.hpp

@@ -0,0 +1,25 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../JsonBuffer.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+class JsonBufferAllocated {
+ public:
+  void *operator new(size_t n, JsonBuffer *jsonBuffer) throw() {
+    if (!jsonBuffer) return NULL;
+    return jsonBuffer->alloc(n);
+  }
+
+  void operator delete(void *, JsonBuffer *) throw() {}
+};
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/JsonFloat.hpp

@@ -0,0 +1,21 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../Configuration.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+#if ARDUINOJSON_USE_DOUBLE
+typedef double JsonFloat;
+#else
+typedef float JsonFloat;
+#endif
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/JsonInteger.hpp

@@ -0,0 +1,26 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../Configuration.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+#if ARDUINOJSON_USE_LONG_LONG
+typedef long long JsonInteger;
+typedef unsigned long long JsonUInt;
+#elif ARDUINOJSON_USE_INT64
+typedef __int64 JsonInteger;
+typedef unsigned _int64 JsonUInt;
+#else
+typedef long JsonInteger;
+typedef unsigned long JsonUInt;
+#endif
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/JsonParser.hpp

@@ -0,0 +1,66 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../JsonBuffer.hpp"
+#include "../JsonVariant.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+// Parse JSON string to create JsonArrays and JsonObjects
+// This internal class is not indended to be used directly.
+// Instead, use JsonBuffer.parseArray() or .parseObject()
+class JsonParser {
+ public:
+  JsonParser(JsonBuffer *buffer, char *json, uint8_t nestingLimit)
+      : _buffer(buffer),
+        _readPtr(json ? json : ""),
+        _writePtr(json),
+        _nestingLimit(nestingLimit) {}
+
+  JsonArray &parseArray();
+  JsonObject &parseObject();
+
+  JsonVariant parseVariant() {
+    JsonVariant result;
+    parseAnythingTo(&result);
+    return result;
+  }
+
+ private:
+  bool skip(char charToSkip);
+
+  const char *parseString();
+  bool parseAnythingTo(JsonVariant *destination);
+  FORCE_INLINE bool parseAnythingToUnsafe(JsonVariant *destination);
+
+  inline bool parseArrayTo(JsonVariant *destination);
+  inline bool parseObjectTo(JsonVariant *destination);
+  inline bool parseStringTo(JsonVariant *destination);
+
+  static inline bool isInRange(char c, char min, char max) {
+    return min <= c && c <= max;
+  }
+
+  static inline bool isLetterOrNumber(char c) {
+    return isInRange(c, '0', '9') || isInRange(c, 'a', 'z') ||
+           isInRange(c, 'A', 'Z') || c == '-' || c == '.';
+  }
+
+  static inline bool isQuote(char c) {
+    return c == '\'' || c == '\"';
+  }
+
+  JsonBuffer *_buffer;
+  const char *_readPtr;
+  char *_writePtr;
+  uint8_t _nestingLimit;
+};
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/JsonParser.ipp

@@ -0,0 +1,191 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "Comments.hpp"
+#include "JsonParser.hpp"
+
+inline bool ArduinoJson::Internals::JsonParser::skip(char charToSkip) {
+  const char *ptr = skipSpacesAndComments(_readPtr);
+  if (*ptr != charToSkip) return false;
+  ptr++;
+  _readPtr = skipSpacesAndComments(ptr);
+  return true;
+}
+
+inline bool ArduinoJson::Internals::JsonParser::parseAnythingTo(
+    JsonVariant *destination) {
+  if (_nestingLimit == 0) return false;
+  _nestingLimit--;
+  bool success = parseAnythingToUnsafe(destination);
+  _nestingLimit++;
+  return success;
+}
+
+inline bool ArduinoJson::Internals::JsonParser::parseAnythingToUnsafe(
+    JsonVariant *destination) {
+  _readPtr = skipSpacesAndComments(_readPtr);
+
+  switch (*_readPtr) {
+    case '[':
+      return parseArrayTo(destination);
+
+    case '{':
+      return parseObjectTo(destination);
+
+    default:
+      return parseStringTo(destination);
+  }
+}
+
+inline ArduinoJson::JsonArray &
+ArduinoJson::Internals::JsonParser::parseArray() {
+  // Create an empty array
+  JsonArray &array = _buffer->createArray();
+
+  // Check opening braket
+  if (!skip('[')) goto ERROR_MISSING_BRACKET;
+  if (skip(']')) goto SUCCESS_EMPTY_ARRAY;
+
+  // Read each value
+  for (;;) {
+    // 1 - Parse value
+    JsonVariant value;
+    if (!parseAnythingTo(&value)) goto ERROR_INVALID_VALUE;
+    if (!array.add(value)) goto ERROR_NO_MEMORY;
+
+    // 2 - More values?
+    if (skip(']')) goto SUCCES_NON_EMPTY_ARRAY;
+    if (!skip(',')) goto ERROR_MISSING_COMMA;
+  }
+
+SUCCESS_EMPTY_ARRAY:
+SUCCES_NON_EMPTY_ARRAY:
+  return array;
+
+ERROR_INVALID_VALUE:
+ERROR_MISSING_BRACKET:
+ERROR_MISSING_COMMA:
+ERROR_NO_MEMORY:
+  return JsonArray::invalid();
+}
+
+inline bool ArduinoJson::Internals::JsonParser::parseArrayTo(
+    JsonVariant *destination) {
+  JsonArray &array = parseArray();
+  if (!array.success()) return false;
+
+  *destination = array;
+  return true;
+}
+
+inline ArduinoJson::JsonObject &
+ArduinoJson::Internals::JsonParser::parseObject() {
+  // Create an empty object
+  JsonObject &object = _buffer->createObject();
+
+  // Check opening brace
+  if (!skip('{')) goto ERROR_MISSING_BRACE;
+  if (skip('}')) goto SUCCESS_EMPTY_OBJECT;
+
+  // Read each key value pair
+  for (;;) {
+    // 1 - Parse key
+    const char *key = parseString();
+    if (!key) goto ERROR_INVALID_KEY;
+    if (!skip(':')) goto ERROR_MISSING_COLON;
+
+    // 2 - Parse value
+    JsonVariant value;
+    if (!parseAnythingTo(&value)) goto ERROR_INVALID_VALUE;
+    if (!object.set(key, value)) goto ERROR_NO_MEMORY;
+
+    // 3 - More keys/values?
+    if (skip('}')) goto SUCCESS_NON_EMPTY_OBJECT;
+    if (!skip(',')) goto ERROR_MISSING_COMMA;
+  }
+
+SUCCESS_EMPTY_OBJECT:
+SUCCESS_NON_EMPTY_OBJECT:
+  return object;
+
+ERROR_INVALID_KEY:
+ERROR_INVALID_VALUE:
+ERROR_MISSING_BRACE:
+ERROR_MISSING_COLON:
+ERROR_MISSING_COMMA:
+ERROR_NO_MEMORY:
+  return JsonObject::invalid();
+}
+
+inline bool ArduinoJson::Internals::JsonParser::parseObjectTo(
+    JsonVariant *destination) {
+  JsonObject &object = parseObject();
+  if (!object.success()) return false;
+
+  *destination = object;
+  return true;
+}
+
+inline const char *ArduinoJson::Internals::JsonParser::parseString() {
+  const char *readPtr = _readPtr;
+  char *writePtr = _writePtr;
+
+  char c = *readPtr;
+
+  if (isQuote(c)) {  // quotes
+    char stopChar = c;
+    for (;;) {
+      c = *++readPtr;
+      if (c == '\0') break;
+
+      if (c == stopChar) {
+        readPtr++;
+        break;
+      }
+
+      if (c == '\\') {
+        // replace char
+        c = Encoding::unescapeChar(*++readPtr);
+        if (c == '\0') break;
+      }
+
+      *writePtr++ = c;
+    }
+  } else {  // no quotes
+    for (;;) {
+      if (!isLetterOrNumber(c)) break;
+      *writePtr++ = c;
+      c = *++readPtr;
+    }
+  }
+  // end the string here
+  *writePtr++ = '\0';
+
+  const char *startPtr = _writePtr;
+
+  // update end ptr
+  _readPtr = readPtr;
+  _writePtr = writePtr;
+
+  // return pointer to unquoted string
+  return startPtr;
+}
+
+inline bool ArduinoJson::Internals::JsonParser::parseStringTo(
+    JsonVariant *destination) {
+  bool hasQuotes = isQuote(_readPtr[0]);
+  const char *value = parseString();
+  if (value == NULL) return false;
+  if (hasQuotes) {
+    *destination = value;
+  } else {
+    *destination = RawJson(value);
+  }
+  return true;
+}

lib/ArduinoJson/include/ArduinoJson/Internals/JsonPrintable.hpp

@@ -0,0 +1,97 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "../Configuration.hpp"
+#include "DummyPrint.hpp"
+#include "IndentedPrint.hpp"
+#include "JsonWriter.hpp"
+#include "Prettyfier.hpp"
+#include "StaticStringBuilder.hpp"
+#include "DynamicStringBuilder.hpp"
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+#include "StreamPrintAdapter.hpp"
+#endif
+
+namespace ArduinoJson {
+namespace Internals {
+
+// Implements all the overloads of printTo() and prettyPrintTo()
+// Caution: this class use a template parameter to avoid virtual methods.
+// This is a bit curious but allows to reduce the size of JsonVariant, JsonArray
+// and JsonObject.
+template <typename T>
+class JsonPrintable {
+ public:
+  size_t printTo(Print &print) const {
+    JsonWriter writer(print);
+    downcast().writeTo(writer);
+    return writer.bytesWritten();
+  }
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+  std::ostream &printTo(std::ostream &os) const {
+    StreamPrintAdapter adapter(os);
+    printTo(adapter);
+    return os;
+  }
+#endif
+
+  size_t printTo(char *buffer, size_t bufferSize) const {
+    StaticStringBuilder sb(buffer, bufferSize);
+    return printTo(sb);
+  }
+
+  size_t printTo(String &str) const {
+    DynamicStringBuilder sb(str);
+    return printTo(sb);
+  }
+
+  size_t prettyPrintTo(IndentedPrint &print) const {
+    Prettyfier p(print);
+    return printTo(p);
+  }
+
+  size_t prettyPrintTo(char *buffer, size_t bufferSize) const {
+    StaticStringBuilder sb(buffer, bufferSize);
+    return prettyPrintTo(sb);
+  }
+
+  size_t prettyPrintTo(Print &print) const {
+    IndentedPrint indentedPrint = IndentedPrint(print);
+    return prettyPrintTo(indentedPrint);
+  }
+
+  size_t prettyPrintTo(String &str) const {
+    DynamicStringBuilder sb(str);
+    return prettyPrintTo(sb);
+  }
+
+  size_t measureLength() const {
+    DummyPrint dp;
+    return printTo(dp);
+  }
+
+  size_t measurePrettyLength() const {
+    DummyPrint dp;
+    return prettyPrintTo(dp);
+  }
+
+ private:
+  const T &downcast() const { return *static_cast<const T *>(this); }
+};
+
+#if ARDUINOJSON_ENABLE_STD_STREAM
+template <typename T>
+inline std::ostream &operator<<(std::ostream &os, const JsonPrintable<T> &v) {
+  return v.printTo(os);
+}
+#endif
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/JsonVariantAs.hpp

@@ -0,0 +1,45 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+namespace ArduinoJson {
+namespace Internals {
+
+// A metafunction that returns the type of the value returned by
+// JsonVariant::as<T>()
+template <typename T>
+struct JsonVariantAs {
+  typedef T type;
+};
+
+template <>
+struct JsonVariantAs<char*> {
+  typedef const char* type;
+};
+
+template <>
+struct JsonVariantAs<JsonArray> {
+  typedef JsonArray& type;
+};
+
+template <>
+struct JsonVariantAs<const JsonArray> {
+  typedef const JsonArray& type;
+};
+
+template <>
+struct JsonVariantAs<JsonObject> {
+  typedef JsonObject& type;
+};
+
+template <>
+struct JsonVariantAs<const JsonObject> {
+  typedef const JsonObject& type;
+};
+}
+}

lib/ArduinoJson/include/ArduinoJson/Internals/JsonVariantContent.hpp

@@ -0,0 +1,30 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#pragma once
+
+#include "JsonFloat.hpp"
+#include "JsonInteger.hpp"
+
+namespace ArduinoJson {
+
+// Forward declarations
+class JsonArray;
+class JsonObject;
+
+namespace Internals {
+// A union that defines the actual content of a JsonVariant.
+// The enum JsonVariantType determines which member is in use.
+union JsonVariantContent {
+  JsonFloat asFloat;     // used for double and float
+  JsonUInt asInteger;    // used for bool, char, short, int and longs
+  const char* asString;  // asString can be null
+  JsonArray* asArray;    // asArray cannot be null
+  JsonObject* asObject;  // asObject cannot be null
+};
+}
+}