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AQM0802A サンプル
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| /* | |
| ST7032 I2C LCD control sample | |
| Original source : HelloWorld.ino (LiquidCrystal Library) | |
| 2013/05/21 tomozh@gmail.com | |
| */ | |
| /* | |
| LiquidCrystal Library - Hello World | |
| Demonstrates the use a 16x2 LCD display. The LiquidCrystal | |
| library works with all LCD displays that are compatible with the | |
| Hitachi HD44780 driver. There are many of them out there, and you | |
| can usually tell them by the 16-pin interface. | |
| This sketch prints "Hello World!" to the LCD | |
| and shows the time. | |
| The circuit: | |
| * LCD RS pin to digital pin 12 | |
| * LCD Enable pin to digital pin 11 | |
| * LCD D4 pin to digital pin 5 | |
| * LCD D5 pin to digital pin 4 | |
| * LCD D6 pin to digital pin 3 | |
| * LCD D7 pin to digital pin 2 | |
| * LCD R/W pin to ground | |
| * 10K resistor: | |
| * ends to +5V and ground | |
| * wiper to LCD VO pin (pin 3) | |
| Library originally added 18 Apr 2008 | |
| by David A. Mellis | |
| library modified 5 Jul 2009 | |
| by Limor Fried (http://www.ladyada.net) | |
| example added 9 Jul 2009 | |
| by Tom Igoe | |
| modified 22 Nov 2010 | |
| by Tom Igoe | |
| This example code is in the public domain. | |
| http://www.arduino.cc/en/Tutorial/LiquidCrystal | |
| */ | |
| // include the library code: | |
| //#include <LiquidCrystal.h> | |
| #include <Wire.h> | |
| #include <ST7032.h> | |
| // initialize the library with the numbers of the interface pins | |
| //LiquidCrystal lcd(12, 11, 5, 4, 3, 2); | |
| ST7032 lcd; | |
| void setup() { | |
| // set up the LCD's number of columns and rows: | |
| lcd.begin(16, 2); | |
| lcd.setContrast(30); | |
| // Print a message to the LCD. | |
| lcd.print("hello, world!"); | |
| } | |
| void loop() { | |
| // set the cursor to column 0, line 1 | |
| // (note: line 1 is the second row, since counting begins with 0): | |
| lcd.setCursor(0, 1); | |
| // print the number of seconds since reset: | |
| lcd.print(millis()/1000); | |
| lcd.setCursor(0, 0); | |
| lcd.print("tset"); | |
| } |
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参考 http://nonkuru.hateblo.jp/entry/2015/12/11/222755