1602 I2C LCD Display Module (PCF8574) 16x2 Blue Screen for Arduino

Simplify your Arduino display setup with this 1602 I2C LCD module.
Featuring a PCF8574 I2C backpack, it allows you to control a 16x2 blue screen LCD with just 4 wires (VCC, GND, SDA, SCL) — saving your valuable I/O pins and reducing wiring complexity. Perfect for DIY electronics, sensor dashboards, and embedded projects.

Product Overview

This 16x2 Character LCD Display provides a clear and bright interface for any microcontroller project. Designed for Arduino, Raspberry Pi, and other development boards, it uses an HD44780-compatible controller and includes a PCF8574 I2C adapter, allowing easy integration with only two data lines.
Ideal for displaying messages, sensor readings, real-time clocks (RTC), and more.

✨ Key Features & Benefits

🔹 I2C Interface – Save I/O Pins

• Reduce control pins from 7 to just 2 data lines (SDA & SCL).
• Perfect for boards with limited I/O (e.g., Arduino Uno).
• More room to connect other modules like sensors, SD cards, or relays.

🔹 High-Visibility 1602 LCD

• 16 characters x 2 lines display format.
• Bright blue backlight ensures readability in low-light environments.
• Wide viewing angle and high contrast for clear visibility.
• HD44780-compatible controller, supported by most Arduino libraries.

🔹 Easy Customization

• Adjustable contrast via on-board blue potentiometer.
• Standard 5V power supply — plug-and-play for most hobby boards.

📐 Technical Specifications

💡 Typical Applications

• Arduino or Raspberry Pi DIY projects
• Smart home control panels
• Temperature / humidity / time displays
• IoT prototype dashboards
• Educational electronics kits