I2C Serial Interface Backpack Module for 1602 / 2004 LCDs (PCF8574T)

I2C Serial Interface Backpack Adapter for 1602 / 2004 LCDs

Universal I2C daughterboard based on NXP PCF8574T. Directly mates with standard 16-pin LCDs to convert parallel pinout into simple 2-wire I2C communication.

Specifications

• Controller IC: PCF8574T 8-bit I/O expander
• Contrast Adjustment: Onboard precision blue multi-turn trimmer pot
• Address Select Jumpers: A0, A1, A2 pads allow up to 8 LCDs on one I2C bus
• Backlight Jumper: Pin jumper enables or disables LED backlight
• Operating Voltage: 2.5V to 6.0V DC