Documentation

Connections for a basic hitachi controller. See http://en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller for pin layout. For this demo, simply connect the LCD pins to the Arduino as follows:

• LCD pin 01 to GND
• LCD pin 02 to +5V
• LCD pin 03 to a 10K potentiometer's viper
• LCD pin 04 to Arduino pin 12
• LCD pin 05 to GND
• LCD pin 06 to Arduino pin 11
• LCD pin 11 to Arduino pin 5
• LCD pin 12 to Arduino pin 4
• LCD pin 13 to Arduino pin 3
• LCD pin 14 to Arduino pin 2
• [If backlight is needed] LCD pin 15 to +5V
• [If backlight is needed] LCD pin 16 to GND via 220ohm resistor

The happy glyph. See lcdCreateSymbol for details on how to create new ones.

The sad glyph. See lcdCreateSymbol for details on how to create new ones.

Access the LCD connected to Arduino, making it show messages we read from the user and demonstrate other LCD control features offered by hArduino.