Reference

Library

Download Link: Sample code and library. Library: LiquidCrystal_I2C v1.1. Compatible with Arduino IDE 1.0 or higher.

Communication Protocol Description

Communication Method: I2C.
I2C Address Range: 0x20-0x27 (default 0x20).
Address Setting: The I2C address is determined by the jumper caps (A2, A1, A0).
Address Setting Table:

• 0: The Jumper Cap is connected
• 1: The Jumper Cap is disconnected

The default address is 0x20. All the jumper caps will be connected from the factory.

API Description

• LiquidCrystal_I2C() //set the LCD address for a 16 chars and 2 line display
• init() //Initialization for the LCD
• clear() //clear display, set cursor position to zero
• home() //set cursor position to zero
• createChar() //Fill the first 8 CGRAM locations with custom characters
• setCursor() //set the position of the cursor
• cursor() //Turns the underline cursor on
• noCursor() //Turns the underline cursor off
• blink() //Turn on the blinking cursor
• noBlink() //Turn off the blinking cursor
• display() //Turn the display on(quickly)
• noDisplay() //Turn the display 0ff(quickly)
• backlight() //Turn the backlight on
• noBacklight() //Turn the backlight off
• scrollDisplayLeft() //Make the display scroll left without changing the RAM
• scrollDisplayRight() //Make the display scroll right without changing the RAM
• autoscroll() //This will 'right justify' text from the cursor
• noAutoscroll() //This will 'left justify' text from the cursor
• leftToRight() //This is for text that flows Left to Right
• rightToLeft() //This is for text that flows Right to Left

Other Supplementary Information

DYP-ME007 Ultrasound range finder - display distance on a I2C 2x16 LCD