The I2C 16×2 LCD Display Module is a highly reliable alphanumeric display that simplifies your projects by using only two I/O pins via the I2C communication protocol. This module integrates a PCF8574 I2C adapter with the classic 16×2 HD44780 display, allowing you to save digital pins on your microcontroller while keeping your display clear and functional.
Ideal for Arduino, Raspberry Pi, ESP32, ESP8266, STM32, and PIC, this I2C LCD is great for displaying sensor readings, GPS data, menus, or custom messages. Its blue LED backlight and white text provide excellent visibility in any environment.
This module is perfect for IoT, robotics, automation, smart home, and embedded electronics projects.
⭐ Key Features:
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🔹 I2C Interface – requires only 2 wires (SCL & SDA)
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📟 16×2 alphanumeric display (16 characters x 2 rows)
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💡 Blue LED backlight with white characters
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🧠 PCF8574 I2C backpack pre-attached
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💾 Saves GPIO pins – great for pin-limited projects
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⚙️ Compatible with Arduino, Raspberry Pi, ESP32, ESP8266, STM32, PIC
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🔧 Contrast adjustable via onboard potentiometer
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✅ Supported by LiquidCrystal_I2C library in Arduino IDE
⚙️ Technical Specifications:
| Parameter | Specification |
|---|---|
| Display Format | 16 characters x 2 lines |
| Interface | I2C (SCL, SDA) via PCF8574 chip |
| Controller | HD44780-compatible |
| Operating Voltage | 5V |
| Backlight | Blue LED with white characters |
| Contrast Control | Potentiometer on I2C module |
| I2C Address (Default) | 0x27 (may vary) |
| Dimensions | Approx. 80mm x 36mm x 12mm |
| Compatibility | Arduino, Raspberry Pi, ESP32, ESP8266, etc |
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