1.This is another great IIC/I2C/TWI/SPI Serial Interface. As the pin resources of controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.

2.I2C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself).

3.Supply voltage: 5V.

4.The backlight and contrast is adjusted by potentiometer.

5.Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable.

6.Compatible for 1602 LCD 2004 LCD.