I2C 16×2 LCD Display Module

The I2C 16×2 LCD Display Module is a compact and easy-to-use character display that can show 16 characters per line across 2 lines. It uses the I2C communication protocol, which drastically reduces the number of wires required to connect the display to a microcontroller. This makes it ideal for Arduino, Raspberry Pi, ESP8266, ESP32, and other development boards.

With a built-in I2C backpack, this module replaces the traditional parallel interface and requires only two data lines (SDA & SCL), making your projects cleaner and more reliable.

Key Features

•  16×2 character display (2 rows, 16 columns)

•  I2C interface – uses only 2 data pins

•  Operates on 5V power supply

•  Built-in PCF8574 I2C controller

•  Adjustable contrast via onboard potentiometer

•  Backlight support (usually blue or green with white text)

•  Easy integration with Arduino & Raspberry Pi

•  Reduces wiring complexity compared to parallel LCDs

Technical Specifications

• Display Type: Alphanumeric LCD

• Characters: 16 × 2

• Interface: I2C

• Operating Voltage: 5V DC

• I2C Address: Commonly 0x27 or 0x3F (can vary)

• Controller IC: HD44780 compatible

• Backlight: LED (ON/OFF via code or jumper)

Applications

•  Arduino & Raspberry Pi projects

•  Sensor data display (temperature, humidity, voltage, etc.)

•  Home automation systems

•  DIY electronics and learning kits

•  Embedded systems & control panels

•  Educational and training projects

Why Choose an I2C LCD?

• Less wiring = fewer errors

• Saves GPIO pins on your microcontroller

• Faster and cleaner project setup

• Beginner-friendly and widely supported by libraries

Package Includes

• 1 × I2C 16×2 LCD Display Module