16×2 LCD Display I2C Module (Blue Backlight)

Add clear, reliable text and data output to your project with this 16×2 LCD Display featuring a built-in I2C/IIC interface and a striking blue backlight with white characters. Based on the industry-standard controller paired with a PCF8574 I2C backpack, this display lets you show two lines of 16 characters each while using just two microcontroller pins for communication, freeing up valuable GPIO for sensors, buttons, and other peripherals.

This module is a favorite among hobbyists and students for good reason: wiring is reduced from the traditional 16 pins down to just four (VCC, GND, SDA, SCL), and a built-in potentiometer on the backpack lets you fine-tune contrast without extra components. It’s compatible with Arduino, ESP32, Raspberry Pi, and other popular development boards, with mature libraries available for quick integration into menu systems, sensor readouts, clocks, and IoT dashboards.

Whether you’re building a weather station, a home automation control panel, a 3D printer status screen, or a simple learning project, this display offers excellent readability and rock-solid I2C communication, making it a reliable go-to component for any electronics workbench.

Specification:

• Display Type : 16×2 Alphanumeric LCD
• Interface : I2C/IIC (4-pin)
• Operating Voltage : 5V DC
• Backlight Color : Blue with white text
• I2C Address : 0x27 or 0x3F (typical)
• Dimensions : Approx. 80mm x 36mm x 12mm