mirror of
https://github.com/olikraus/U8g2_Arduino.git
synced 2026-07-28 04:16:19 +00:00
increased contrast range for ssd1306
This commit is contained in:
olikraus
@@ -0,0 +1,173 @@
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/*
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HelloWorld.ino
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Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
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Copyright (c) 2016, olikraus@gmail.com
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or other
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materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <Arduino.h>
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#include <U8g2lib.h>
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#ifdef U8X8_HAVE_HW_SPI
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#include <SPI.h>
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#endif
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#ifdef U8X8_HAVE_HW_I2C
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#include <Wire.h>
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#endif
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/*
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U8glib Example Overview:
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Frame Buffer Examples: clearBuffer/sendBuffer. Fast, but may not work with all Arduino boards because of RAM consumption
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Page Buffer Examples: firstPage/nextPage. Less RAM usage, should work with all Arduino boards.
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U8x8 Text Only Example: No RAM usage, direct communication with display controller. No graphics, 8x8 Text only.
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This is a page buffer example.
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*/
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// Please UNCOMMENT one of the contructor lines below
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// U8g2 Contructor List (Picture Loop Page Buffer)
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// The complete list is available here: https://github.com/olikraus/u8g2/wiki/u8g2setupcpp
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// Please update the pin numbers according to your setup. Use U8X8_PIN_NONE if the reset pin is not connected
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//U8G2_SSD1306_128X64_NONAME_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 12, /* dc=*/ 4, /* reset=*/ 6); // Arduboy (Production, Kickstarter Edition)
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U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_SSD1306_128X64_NONAME_1_3W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8);
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//U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* reset=*/ 8);
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//U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // All Boards without Reset of the Display
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//U8G2_SSD1306_128X64_NONAME_1_6800 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);
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//U8G2_SSD1306_128X64_NONAME_1_8080 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);
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//U8G2_SH1106_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_SSD1306_128X32_UNIVISION_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 21, /* data=*/ 20, /* reset=*/ U8X8_PIN_NONE); // Adafruit Feather M0 Basic Proto + FeatherWing OLED
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//U8G2_SSD1306_128X32_UNIVISION_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // Adafruit Feather ESP8266/32u4 Boards + FeatherWing OLED
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//U8G2_SSD1306_128X32_UNIVISION_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // Adafruit ESP8266/32u4/ARM Boards + FeatherWing OLED
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//U8G2_SSD1306_64X48_ER_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // EastRising 0.66" OLED breakout board, Uno: A4=SDA, A5=SCL, 5V powered
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//U8G2_SSD1322_NHD_256X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Enable U8G2_16BIT in u8g2.h
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//U8G2_SSD1322_NHD_256X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Enable U8G2_16BIT in u8g2.h
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//U8G2_SSD1325_NHD_128X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_SSD1325_NHD_128X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_LD7032_60X32_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* cs=*/ 9, /* dc=*/ 10, /* reset=*/ 8); // SW SPI Nano Board
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//U8G2_LD7032_60X32_1_4W_SW_I2C u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* reset=*/ U8X8_PIN_NONE); // NOT TESTED!
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//U8G2_UC1701_EA_DOGS102_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
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//U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
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//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */); // Remember to set R/W to 0
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//U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
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//U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
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//U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);
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//U8G2_ST7565_EA_DOGM128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_ST7565_EA_DOGM128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_ST7565_NHD_C12832_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_ST7565_NHD_C12832_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
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//U8G2_T6963_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
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//U8G2_T6963_256X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
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//U8G2_SED1330_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect /RD = E with +5V, enable is /WR = RW, FG with GND, 14=Uno Pin A0
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//U8G2_SED1330_240X128_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // A0 is dc pin, /WR = RW = GND, enable is /RD = E
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//U8G2_RA8835_NHD_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect /RD = E with +5V, enable is /WR = RW, FG with GND, 14=Uno Pin A0
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//U8G2_RA8835_NHD_240X128_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // A0 is dc pin, /WR = RW = GND, enable is /RD = E
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//U8G2_UC1608_ERC24064_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // SW SPI, Due ERC24064-1 Test Setup
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//U8G2_UC1610_EA_DOGXL160_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ U8X8_PIN_NONE);
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//U8G2_UC1610_EA_DOGXL160_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ U8X8_PIN_NONE);
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//U8G2_UC1611_EA_DOGM240_1_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8); // Due, 2nd I2C, DOGM240 Test Board
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//U8G2_UC1611_EA_DOGM240_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // SW SPI, Due DOGXL240 Test Board
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//U8G2_UC1611_EA_DOGXL240_1_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8); // Due, 2nd I2C, DOGXL240 Test Board
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//U8G2_UC1611_EA_DOGXL240_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // SW SPI, Due DOGXL240 Test Board
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// End of constructor list
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void testContrast(uint8_t contrast)
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{
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static char cstr[6];
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static char vstr[4];
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u8g2.setContrast(contrast);
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strcpy( cstr, u8x8_u8toa(contrast, 3));
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u8g2.firstPage();
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do {
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//u8g2.setFont(u8g2_font_ncenB14_tr);
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u8g2.setFont(u8g2_font_courB24_tn);
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u8g2.drawStr(0,28, cstr);
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u8g2.drawBox(64, 0, 10, 64);
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u8g2.drawBox(76, 0, 2, 64);
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u8g2.drawBox(80, 0, 1, 64);
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u8g2.drawBox(82, 0, 1, 64);
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u8g2.drawBox(0, 32, 128, 10);
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u8g2.drawBox(0, 44, 128, 2);
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u8g2.drawBox(0, 48, 128, 1);
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u8g2.drawBox(0, 50, 128, 1);
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} while ( u8g2.nextPage() );
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}
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void setup(void) {
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/* U8g2 Project: SSD1306 Test Board */
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//pinMode(10, OUTPUT);
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//pinMode(9, OUTPUT);
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//digitalWrite(10, 0);
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//digitalWrite(9, 0);
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/* U8g2 Project: T6963 Test Board */
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//pinMode(18, OUTPUT);
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//digitalWrite(18, 1);
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u8g2.begin();
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}
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void loop(void) {
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uint8_t i;
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i = 255;
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do
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{
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testContrast(255-i);
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delay(15);
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i-=5;
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} while( i != 0 );
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i = 255;
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delay(100);
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do
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{
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testContrast(i);
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delay(15);
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i-=5;
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} while( i != 0 );
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delay(100);
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}
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@@ -236,6 +236,17 @@ void draw(void) {
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void setup(void) {
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u8g2.begin();
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/* U8g2 Project: SSD1306 Test Board */
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pinMode(10, OUTPUT);
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pinMode(9, OUTPUT);
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digitalWrite(10, 0);
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digitalWrite(9, 0);
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/* U8g2 Project: T6963 Test Board */
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//pinMode(18, OUTPUT);
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//digitalWrite(18, 1);
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}
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void loop(void) {
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@@ -59,3 +59,4 @@ https://github.com/olikraus/u8g2 ChangeLog
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* Speed improvements for SW SPI und 8080 mode (issues 87, 90 and 95)
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* Fixed issue with ST7920 not using the optimized SW SPI procedures (issue 87)
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* Direct buffer API (issue 93)
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+1
-1
@@ -1,5 +1,5 @@
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name=U8g2
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version=2.7.5
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version=2.8.0
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author=oliver <olikraus@gmail.com>
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maintainer=oliver <olikraus@gmail.com>
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sentence=Library for monochrome LCDs and OLEDs. Successor of U8glib. Features: UTF8, >700 fonts, all Arduino Boards supported
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+10
-7
@@ -281,14 +281,17 @@ struct u8x8_display_info_struct
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#define U8X8_PIN_I2C_CLOCK 12 /* 1 = Input/high impedance, 0 = drive low */
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#define U8X8_PIN_I2C_DATA 13 /* 1 = Input/high impedance, 0 = drive low */
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#define U8X8_PIN_OUTPUT_CNT 14
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#define U8X8_PIN_CS1 14 /* KS0108 extra chip select */
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#define U8X8_PIN_CS2 15 /* KS0108 extra chip select */
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#define U8X8_PIN_MENU_SELECT 14
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#define U8X8_PIN_MENU_NEXT 15
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#define U8X8_PIN_MENU_PREV 16
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#define U8X8_PIN_MENU_HOME 17
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#define U8X8_PIN_MENU_UP 18
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#define U8X8_PIN_MENU_DOWN 19
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#define U8X8_PIN_OUTPUT_CNT 16
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#define U8X8_PIN_MENU_SELECT 16
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#define U8X8_PIN_MENU_NEXT 17
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#define U8X8_PIN_MENU_PREV 18
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#define U8X8_PIN_MENU_HOME 19
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#define U8X8_PIN_MENU_UP 20
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#define U8X8_PIN_MENU_DOWN 21
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#define U8X8_PIN_INPUT_CNT 6
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@@ -59,9 +59,10 @@ static const uint8_t u8x8_d_ssd1306_128x64_noname_init_seq[] = {
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// U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
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U8X8_CA(0x0da, 0x012), /* com pin HW config, sequential com pin config (bit 4), disable left/right remap (bit 5) */
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U8X8_CA(0x081, 0x0cf), /* [2] set contrast control */
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U8X8_CA(0x0d9, 0x0f1), /* [2] pre-charge period 0x022/f1*/
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U8X8_CA(0x0db, 0x040), /* vcomh deselect level */
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U8X8_CA(0x081, 0x0ef), /* [2] set contrast control, */
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U8X8_CA(0x0d9, 0x0a1), /* [2] pre-charge period 0x022/f1*/
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U8X8_CA(0x0db, 0x000), /* vcomh deselect level 0x000 .. 0x070, low nibble always 0 */
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// if vcomh is 0, then this will give the biggest range for contrast control issue #98
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U8X8_C(0x02e), /* Deactivate scroll */
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U8X8_C(0x0a4), /* output ram to display */
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Reference in New Issue
Block a user