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Introduction keyestudio 1602 I2C module is a 16 character by 2 line LCD display with Blue background and White backlight. The original 1602 LCD needs 7 IO ports to be up and running, ours is built with IIC/I2C interface, saving you 5 IO ports. This LCD is ready-to-use because it is compatible with the Liquid Crystal Library. Specification I2C Address:0x27 Back lit (Blue with white char color) Supply voltage: 5V Interface:I2C/TWI x1,Gadgeteer interface x2 Adjustable contrast Package List: 1 x 1602 I2C Module