ITEM NAME:Blue Serial IIC/I2C/TWI 2004 204 20X4 Character LCD L9M7 Module Display For V0F2 Product Description Features : 2011 Latest Iic Lcd2004-Character Lcd Display Module, 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. 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 Specification: Interface: I2C I2C Address: 0x27 Pin Definition : GNDVCCSDASCL Back lit (Blue with White char color) Supply voltage: 5V Size : 60mm×99mm Contrast Adjust : Potentiometer Backlight Adjust : Jumper Package 100% Brand New 1 X Blue IIC I2C TWI Serial LCD 2004 20x4 Module Shield Display competible.1 X Blue IIC I2C TWI Serial LCD 2004 20x4 Module Shield Display competible. Interface: I2C. Back lit (Blue with White char color). Size : 60mm×99mm.