This library is used to drive an LCD with HD44780 or compatible controller through a PCF8574 or PCF8574A IO Expander.

This library requires the IO Expander Library.

Schematic of IO Expander to LCD connection is included in the user manual.

LCD I2C Library - User's manual 158.33 kB - Downloaded 70 times

LCD I2C Library 3.91 kB - Downloaded 36 times

Need an usage example? Here it is!