HKD 16x2 LCD Parallel to I2C Converter Board PCF8574 with Backlight

The HKD 16x2 LCD Parallel-to-I2C Converter Board (PCF8574) is a compact adapter designed to simplify connections between standard 16x2 LCD displays and microcontrollers. Instead of using multiple digital pins for parallel communication, this module reduces the interface to just two lines (SDA and SCL), freeing up valuable I/O resources for other components in your project.

Built on the PCF8574 I/O expander, this board fully supports the I2C protocol, making it compatible with a wide range of microcontrollers such as Arduino, Raspberry Pi, ESP32, and other development platforms. It also integrates a convenient backlight control and contrast adjustment potentiometer, ensuring clear visibility of characters in different lighting conditions.

With its straightforward 4-line output and +5V operating voltage, the module is easy to integrate into both beginner and advanced projects, making it ideal for data displays, system monitoring, and embedded electronics applications.

Key Features:

• Converts standard 16x2 LCD parallel interface to I2C
• Based on PCF8574 I/O expander
• Supports I2C/IIC/TWI communication protocol
• Operating Voltage: +5V
• Built-in backlight control for LCD
• Contrast adjustment via onboard potentiometer
• Reduces pin usage to just 2 lines (SDA, SCL)
• Compact design with easy 4-line output

What's in the box
1 x HKD 16x2 LCD Parallel to I2C Converter Board PCF8574 with Backlight