Description

The I²C LCD Interface Adapter Module is a compact display interface board that enables standard 16×2 and 20×4 character LCDs to communicate with microcontrollers using the I²C protocol. It significantly reduces the number of required GPIO pins, making it ideal for Arduino, ESP32, ESP8266, STM32, Raspberry Pi, and other embedded systems. The module features an onboard PCF8574 I/O expander and an adjustable contrast potentiometer for easy display configuration.