Description:
Control board for Arduino has only 20 interfaces， such limited number restricts the connection of relay module， sensor， SD card and etc. The original 1602 screen needs 7 IO interface to be driven while our module needs only 2 interface.

Main Features:
● IIC / I2C interface pinboard with LCD1602 (LCD screen not included)
● Support I2C protocol
● Equipped with backlight and potentiometer for contrast adjustment
● 4-Line output for the convenience of users