I2C Serial Interface Module for 16×2/20×4 LCDv Price in Paksitan

If you’re working with a 16×2 or 20×4 LCD and running out of GPIO pins on your microcontroller, this I2C Serial Interface Module is the perfect solution. Traditional parallel LCD connections require multiple data and control pins, making wiring complex and limiting available pins for other peripherals. This I2C LCD backpack converts parallel communication to I2C, allowing you to control your LCD using just two wires (SDA & SCL), simplifying your circuit and saving valuable I/O resources.

Ideal for Arduino, Raspberry Pi, and other microcontroller-based projects, this module is widely used in robotics, embedded systems, and IoT development across Pakistan.

Key Features

• Converts 16×2 and 20×4 LCDs to I2C interface

• Uses only 2 communication lines (SDA & SCL)

• Based on PCF8574 I/O expander IC

• Adjustable contrast via onboard potentiometer

• Backlight control through I2C command

• Reduces wiring complexity significantly

• Compatible with Arduino, Raspberry Pi, AVR, PIC, STM32, ESP8266, ESP32

• Compact PCB design for easy mounting

Technical Specifications

• Interface Type: I2C (Inter-Integrated Circuit)

• I2C Address: Typically 0x27 or 0x3F (configurable via solder pads)

• Operating Voltage: 5V DC

• Compatible LCD Types: 16×2 and 20×4 character LCD (HD44780 compatible)

• Driver IC: PCF8574 / PCF8574T

• Onboard Components: Contrast potentiometer, backlight jumper

• Communication Lines Required: 2 (SDA, SCL)

• Mounting: Direct soldering to LCD 16-pin header

Why Choose This I2C LCD Module?

This I2C Serial Interface Module is designed for engineers, students, and developers who want cleaner wiring and more efficient pin usage. By reducing the required connections from 6–10 pins to just 2, it frees up your microcontroller for additional sensors, relays, or communication modules.

It is especially useful in compact robotics systems and IoT projects where space and GPIO management are critical. The onboard potentiometer allows quick contrast adjustment without modifying code, while I2C addressing flexibility supports multiple displays on the same bus.

If you’re searching for reliable robotics parts Pakistan or IoT components Pakistan, this module offers both practicality and value.

Applications

• Arduino-based LCD projects

• Robotics control panels

• IoT monitoring systems

• Smart home display units

• Industrial embedded systems

• Educational electronics labs

• DIY electronics prototypes

Who Is It For?

• Electronics students and hobbyists

• Robotics developers

• IoT system designers

• Embedded system engineers

• DIY makers in Pakistan

• Technical training institutes

Whether you are building a final year project or a commercial prototype, this module simplifies LCD integration without compromising performance.

Buy Online in Pakistan from Pakluck

At Pakluck, we understand the needs of electronics developers and technical professionals across Pakistan. We supply quality-tested electronics components Pakistan with accurate descriptions and practical compatibility. When you buy online in Pakistan from Pakluck, you get reliable components suitable for real-world robotics, automation, and IoT applications.

Best Online Shopping website for electronic Components &  WIFI wireless module Transceiver Board in cheap price in Karachi, Lahore, Islamabad, Rawalpindi, Peshawar, Multan, Quetta, Faisalabad, and all over Pakistan By Pakluck. For more info. Contact or WhatsApp