FaBoLCD-PCF8574-Python How to install. pip install FaBoLCD_PCF8574 FaBo LCD I2C Brick #212 LCD I2C Brick PCF8574 PCF8574 is Remote 8-bit I/O expander for I2C-bus. PCF8574 Datasheet PCF8574 Datasheet Releases 1.0.0 Initial release.