I2C Module for LCD Display with PCF8574 chip, compatible with Arduino, Raspberry Pi

15.00

 25.00

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Product Overview

Simplifies wiring: Ideal for microcontrollers with limited I/O pins like Arduino, ESP8266, ESP32.
Easily expand I2C devices: Multiple I2C devices can share the same bus.
Power saving: Fewer wires and simpler connections.

Connect module VCC to 5V (or 3.3V if supported).
Connect GND to ground.
Connect SDA and SCL to microcontroller I2C pins.
Use an I2C LCD library (like LiquidCrystal_I2C for Arduino) to send commands and display text.

PCF8574 I/O Expander Chip: Uses the PCF8574 chip to convert I2C signals into parallel signals that the LCD understands.
I2C Communication: Communicates with microcontrollers over the I2C bus, requiring only 2 data lines: SDA (Data) SCL (Clock)
Pin Reduction: Normally, an LCD requires at least 6 or more pins for data and control lines. The PCF8574 module reduces this to just 2 pins, plus power and ground.
Compatibility: Works typically with standard 16x2 or 20x4 character LCD displays (based on the HD44780 controller).
Address Configurable: The I2C address of the PCF8574 can be configured by adjusting jumpers on the module (usually three address pins A0, A1, A2).

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Arduino Accessories

I2C Module for LCD Display with PCF8574 chip, compatible with Arduino, Raspberry Pi

15.00

 2540%