I2C Serial Interface LCD Adapter Module

I2C Serial Interface Adapter Module for LCD Displays

The I2C Serial Interface Adapter Module is a compact and efficient solution designed to simplify the connection between standard character LCDs and microcontrollers. By converting parallel LCD communication into I2C protocol, this module drastically reduces wiring complexity and GPIO usage, making it ideal for clean, scalable embedded projects.

🔧 Key Features

• Powered by the PCF8574 I2C I/O expander for reliable serial communication.
• Converts standard 16x2 and 20x4 LCDs from parallel to I2C interface.
• Reduces LCD connections to just SDA and SCL lines.
• Includes an onboard potentiometer for easy contrast adjustment.
• Supports multiple I2C addresses via address selection jumpers.
• Operates on 5V logic, fully compatible with common microcontrollers.
• Compact design mounts directly onto the LCD header pins.

💡 Applications

• Ideal for Arduino, ESP32, ESP8266, and Raspberry Pi projects.
• Perfect for IoT dashboards, sensor displays, and embedded systems.
• Used in DIY electronics, automation panels, and educational kits.
• Best choice when GPIO pins are limited.

⚙️ Technical Specifications

📦 Package Includes

• 1 × I2C Serial Interface Adapter Module

✅ Why Choose This Module?

• Clean and minimal wiring for professional builds.
• Fully Arduino IDE compatible with popular LCD libraries.
• Reliable, compact, and cost-effective.
• Perfect for both beginners and experienced developers.