This library implements a driver for HD44780 lcd connected through PCF8574 port expander.
Data is transmitted using only 2 wire over i2c with the PCF8574.
This library can drive up to 8 LCD concurrently.
Lcd driver is based upon Peter Fleury's lcd driver
HD44780 to i2c library its based upon this library: http://davidegironi.blogspot.it/2013/06/an-avr-atmega-library-for-hd44780-based.html
Each PCF8574 needs to have a different address selected, this can be done by the A0,A1 and A2 pins.
This library was developed on Eclipse, built with avr-gcc on Atmega8 @ 8MHz.
- read risk disclaimer
- excuse my bad english