The I2C LCD Adapter Module is a compact, easy-to-use interface board that allows you to control standard LCD displays (16×2, 20×4) using only two I2C pins. Powered by the PCF8574 I/O expander, this module significantly reduces the number of required microcontroller pins, making it ideal for Arduino, ESP32, Raspberry Pi, and other embedded systems.
Perfect for students, hobbyists, and robotics developers, this adapter lets you add character displays to your projects quickly and efficiently. With adjustable contrast and switchable backlight, it ensures a clear and customizable display output.
Key Features
5V power supply – compatible with most development boards
PCF8574-based I2C interface for simple serial control
Backlight ON/OFF jumper to save power when needed
Contrast adjustment via on-board potentiometer
Supports up to 8 modules on a single I2C bus
Address selection via solder jumpers
Perfect for 16×2 and 20×4 character LCDs
Easy connection using a standard 4-pin I2C header
Reliable, stable, and suitable for robotics and IoT projects
Technical Specifications
Chipset: PCF8574 / PCF8574T
Operating Voltage: 5V DC
Interface: I2C (SCL, SDA)
Adjustable Contrast: Yes (potentiometer)
Backlight Control: Jumper enables/disables
Address Range: 0x20–0x27 (depending on jumper settings)
Compatibility: Arduino, ESP8266, ESP32, STM32, Raspberry Pi, PIC, AVR, etc.
Applications
Robotics & Embedded Systems
Arduino Display Projects
IoT Dashboards
DIY Electronics
Educational/Training Labs
Real-time display interfaces
Sensor data monitoring
Why Choose This I2C LCD Adapter?
Converts any LCD into an I2C-compatible display
Saves microcontroller pins (only 2 wires needed!)
Easy to configure and highly reliable
Ideal for compact and advanced electronics projects
Great for students, makers, and robotics projects
Buy an I2C LCD Adapter Module in Bangladesh
Available at Labtex Bangladesh (Labtexbd.com) with fast home delivery across Bangladesh.
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