Description IIC LCD2004-character LCD display module is a new high-quality 4 line 20 character LCD module not only set the contrast control knob selector switch also has a backlight and IIC communication interface. Compatible for beginners, not for the cumbersome and complex LCD driver circuit connection and a headache, the real significance of this LCD module will simplify the circuit, this module directly into the Sensor Shield V5.0 sensor expansion board IIC device interface can, GM 4P sensor connection cable, programmed through the controller, you can easily identify the slogan, sensor data records. Features - Interface: I2C. - I2C Address: 0x27. - Pin Definition: GND; VCC; SDA; SCL. - Back lit (Blue with White char color). - Supply voltage: 5V. - Pcb Size: 60mmx99mm. - Contrast Adjust: Potentiometer. - Backlight Adjust: Jumper.Package list: 1 * IIC/I2C/TWI Serial 2004 Character 20x4 LCD Display Modul Shield Compatible for Mega 2560 1280 Duemilanove R3 AVR ATMEL Robot