I2C LCD Adapter Module

(5.00) 1 Reviews 19 Orders 2 Wish listed

৳110

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৳110

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Detail Description

I2C LCD Adapter Module is designed to interface 16×2, 20×4, and other HD44780-compatible character LCDs with microcontrollers using only two data lines (SDA and SCL). By converting the parallel interface of the LCD into an I2C interface, it significantly reduces the number of required I/O pins.

The module is typically based on the PCF8574 I2C I/O expander IC and includes an onboard potentiometer for contrast adjustment and a jumper or transistor for backlight control. It supports multiple I2C addresses, allowing more than one LCD to be connected on the same I2C bus.

This adapter is widely used in Arduino, ESP8266, ESP32, and Raspberry Pi projects for displaying sensor data, system status, menus, and messages. Its ease of use, compact design, and reduced wiring make it ideal for students, hobbyists, and professionals working on embedded and IoT projects.

🔹 Key Technical Information (Important)

Module Type: I2C LCD Adapter
Communication Protocol: I2C
Compatible LCDs: 16×2, 20×4 (HD44780)
I2C IC: PCF8574 (commonly used)
Operating Voltage: 5V (some support 3.3V logic)
Onboard contrast adjustment potentiometer
Backlight control support

🔹 Common Applications

Arduino LCD display projects
ESP8266 / ESP32 display systems
Sensor data and status display
IoT and automation interfaces
Embedded system user interfaces
DIY and educational electronics

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Product review

Asadullahill Galib

5 / 5

I2C module is one of most useful product. You can buy here best quality I2C modules and other electronics components.

Oct-04-2025

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