Michel2/New-LiquidCrystal-softwareheritage
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Added new demo applications and corrected thermometer demo app.

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This commit is contained in:
FMC
2011-11-17 00:18:56 +01:00
parent f686b32312
commit 1e82734664
3 changed files with 45 additions and 66 deletions
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LiquidCrystal_I2C.h
+1 -1
View File
@@ -92,7 +92,7 @@ public:
the address can be configured using the on board jumpers.
@param En[in] LCD En (Enable) pin connected to the IO extender module
@param Rw[in] LCD Rw (Read/write) pin connected to the IO extender module
@para Rs[in] LCD Rs (Reset) pin connected to the IO extender module
@param Rs[in] LCD Rs (Reset) pin connected to the IO extender module
*/
LiquidCrystal_I2C( uint8_t lcd_Addr, uint8_t En, uint8_t Rw, uint8_t Rs);
examples/HelloWorld_i2c/HelloWorld_i2c.pde
+29 -42
View File
@@ -6,64 +6,51 @@ LiquidCrystal_I2C lcd(0x38); // Set the LCD I2C address
#define BACKLIGHT_PIN 13
// Creat a set of new characters
byte smiley[8] = {
0b00000,
0b00000,
0b01010,
0b00000,
0b00000,
0b10001,
0b01110,
0b00000
};
byte armsUp[8] = {
0b00100,
0b01010,
0b00100,
0b10101,
0b01110,
0b00100,
0b00100,
0b01010
};
byte frownie[8] = {
0b00000,
0b00000,
0b01010,
0b00000,
0b00000,
0b00000,
0b01110,
0b10001
const uint8_t charBitmap[][8] = {
{ 0xc, 0x12, 0x12, 0xc, 0, 0, 0, 0 },
{ 0x6, 0x9, 0x9, 0x6, 0, 0, 0, 0 },
{ 0x0, 0x6, 0x9, 0x9, 0x6, 0, 0, 0x0 },
{ 0x0, 0xc, 0x12, 0x12, 0xc, 0, 0, 0x0 },
{ 0x0, 0x0, 0xc, 0x12, 0x12, 0xc, 0, 0x0 },
{ 0x0, 0x0, 0x6, 0x9, 0x9, 0x6, 0, 0x0 },
{ 0x0, 0x0, 0x0, 0x6, 0x9, 0x9, 0x6, 0x0 },
{ 0x0, 0x0, 0x0, 0xc, 0x12, 0x12, 0xc, 0x0 }
};
void setup()
{
int charBitmapSize = (sizeof(charBitmap ) / sizeof (charBitmap[0]));
// Switch on the backlight
pinMode ( BACKLIGHT_PIN, OUTPUT );
digitalWrite ( BACKLIGHT_PIN, HIGH );
lcd.begin(16,2); // initialize the lcd
lcd.createChar (0, smiley); // load character to the LCD
lcd.createChar (1, armsUp); // load character to the LCD
lcd.createChar (2, frownie); // load character to the LCD
for ( int i = 0; i < charBitmapSize; i++ )
{
lcd.createChar ( i, (uint8_t *)charBitmap[i] );
}
lcd.home (); // go home
lcd.print("Hello, ARDUINO ");
lcd.setCursor ( 0, 1 ); // go to the next line
lcd.print (" FORUM - fm ");
lcd.print (" FORUM - fm ");
delay ( 1000 );
}
void loop()
{
// Do a little animation by writing to the same location
lcd.setCursor ( 14, 1 );
lcd.print (char(2));
delay (200);
lcd.setCursor ( 14, 1 );
lcd.print ( char(0));
delay (200);
lcd.home ();
// Do a little animation by writing to the same location
for ( int i = 0; i < 2; i++ )
{
for ( int j = 0; j < 16; j++ )
{
lcd.print (char(random(7)));
}
lcd.setCursor ( 0, 1 );
}
delay (200);
}
examples/i2cLCDextraIO/i2cLCDextraIO.pde
+15 -23
View File
@@ -1,8 +1,6 @@
#include <Arduino.h>
#include <Wire.h>
#include <LCD.h>
#include "thermistor.h"
#include "analogTemp.h"
#define _LCD_I2C_
@@ -37,7 +35,7 @@
correct temperature reading from the internal temperature sensor
of your AVR.
*/
#define TEMP_CAL_OFFSET 335
#define TEMP_CAL_OFFSET 334
/*!
@defined FILTER_ALP
@@ -67,8 +65,6 @@ const int CONTRAST = 130;
LCD *myLCD = &lcd;
static double tempFilter;
thermistor *tempSensor;
static analogTemp myTemp;
/*!
@@ -83,7 +79,9 @@ const uint8_t charBitmap[][8] = {
{ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x0 },
{ 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x0 },
{ 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x1E, 0x0 },
{ 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x0 }
{ 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x0 },
{ 0xe, 0x11, 0x11, 0x11, 0xe, 0, 0, 0 },
{ 0x6, 0x9, 0x9, 0x6, 0x0, 0, 0, 0}
};
/*!
@@ -150,7 +148,7 @@ static void drawBars ( int value, uint8_t row, uint8_t barLength, char start,
myLCD->print (start);
// Calculate the size of the bar
value = map ( value, -30, 45, 0, ( barLength ) * CHAR_WIDTH );
value = map ( value, -30, 50, 0, ( barLength ) * CHAR_WIDTH );
numBars = value / CHAR_WIDTH;
// Limit the size of the bargraph to barLength
@@ -197,11 +195,6 @@ void setup ()
#endif
myLCD->begin ( 16, 2 );
myTemp.setCalOffset ( TEMP_CAL_OFFSET );
tempSensor = &myTemp;
tempSensor->init ();
// Load custom character set into CGRAM
for ( i = 0; i < charBitmapSize; i++ )
@@ -211,9 +204,9 @@ void setup ()
Serial.println ( freeMemory () );
myLCD->clear ();
myLCD->print ("Temperature:");
myLCD->print ("Temp:");
tempFilter = tempSensor->readTemperature (); // Initialise the temperature Filter
tempFilter = readTemperature (); // Initialise the temperature Filter
}
@@ -221,19 +214,18 @@ void setup ()
void loop ()
{
int temp;
unsigned long time, diff;
temp = tempSensor->readTemperature();
temp = readTemperature();
tempFilter = ( FILTER_ALP * temp) + (( 1.0 - FILTER_ALP ) * tempFilter);
time = micros ();
myLCD->setCursor ( 11, 1 );
myLCD->setCursor ( 8, 0 );
myLCD->print (" ");
myLCD->setCursor ( 11, 1 );
myLCD->print ( tempFilter, 1 );
myLCD->setCursor (1, 0);
drawBars ( tempFilter, 1, 7, '-', '+' );
Serial.println (micros() - time);
myLCD->setCursor ( 8, 0 );
myLCD->print ( tempFilter, 1 );
myLCD->setCursor ( 12, 0 );
myLCD->print ( "\x07" );
myLCD->print ("C");
drawBars ( tempFilter, 1, 14, '-', '+' );
delay (200);
}