LCD05 - I2C/Serial LCD - IBEROBOTICS The I2C and serial display driver provides easy operation of a standard 20 x 4 or 16 x 2 LCD Text display. It requires only a 5v power supply and the two data connections for either … The I2C and serial display driver provides easy operation of a standard 20 x 4 or 16 x 2 LCD Text display. It requires only a 5v power supply and the two data connections for either …