The HD44780 compatible LCDs are great for displaying text and simple graphics, but quickly use up your available microcontroller pins. Using the PCF8574 port expander IC, you can control these LCDs using just 2 pins via I2C. The breakout board offers pin multiplexing, contrast control pot, LED backlight jumper control, and up to 8 unique addresses via solderable jumpers.

Features:

 - Designed to solder directly to 16pin SIL headers

 - Mounts behind LCD panel, taking up minimal space

 - Arduino libraries offer direct LCD control