Other Power Features
Easy to use. Less I/O ports are occupied, only four - VCC, GND, SDA (serial data line), SCL (serial clock line)., Support IIC protocol. The I2C LCD1602 library is provided, so you can call it directly., With a potentiometer used to adjust backlight and contrast., Power supply: +5V, How to wire: GND—GND; VCC—VCC; SDA—A4; SCL—A5, Package Dimensions 6.34 x 6.3 x 0.67 inches