Features :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 V50 sensor expansion board IIC device interface can, 4P sensor connection cable, programmed through the controller, you can easily identify the slogan, sensor data recordsSpecification:Interface: I2CI2C Address: 0x27Pin Definition : GNDVCCSDASCLBack lit (Blue with White char color)Supply voltage: 5VSize : 60mm99mmContrast Adjust : PotentiometerBacklight Adjust : JumperPackage1 X 2004 5V 20X4 LCD ModuleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.