16x2 LCD Display Module (With Built-in I2C Interface)

16x2 LCD Display Module (With Built-in I2C Interface)

This 16x2 LCD Display Module with inbuilt I2C interface (RG1602A Ver 1.3) is a smart and efficient text display solution for Arduino, Raspberry Pi, and other microcontroller projects. Unlike standard 16x2 LCDs, this version already has an integrated I2C driver chip on the backside — eliminating the need for a separate I2C module.

🔹 Key Features:

Display Type: 16 characters × 2 lines (16x2)

Interface: Built-in I2C (No external I2C module required)

IC Type: HD44780-compatible controller with onboard I2C driver

Operating Voltage: 5V DC

Backlight: Green with black text

Power Consumption: Very low

Adjustable Contrast: Through onboard potentiometer

Compact and Easy to Mount: 4 mounting holes provided

Fully compatible with Arduino LiquidCrystal_I2C library

🔹 Advantages:

No need for external I2C adapter — saves space and wiring effort

Uses only 2 communication pins (SDA, SCL) for easy connection

Perfect for projects with limited I/O pins

Faster setup and cleaner design

🔹 Applications:

Arduino and Raspberry Pi display systems

Sensor data monitors

Smart home and IoT devices

Robotics and automation displays

Educational and research projects

🔹 Working Principle:

This LCD module uses the I2C communication protocol to transfer data from the microcontroller to the display. With the built-in I2C chip, you can directly connect SDA and SCL lines from your controller to the LCD, significantly reducing wiring complexity.