An AVR Atmega library for HD44780 based lcd connected through i2c

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.

Lcd driver is based upon Peter Fleury's lcd driver.
Setup parameters can be found in file lcdpcf8574.h and pcf8574.h
This library was developed on Eclipse, built with avr-gcc on Atmega8 @ 1MHz.

Issues fix:

• If you have problem making this library works with Arduino Uno and QAPASS LCD with Funduino I2C interface, please read the comment above "Matt Alizadeh June 1, 2018 at 2:56 PM"  by Matt Alizadeh

Changelog

• 02: added CGRAM, custom char functions by Péter Papp
• 01: first release

Code

• avr_lib_lcdpcf8574_02.zip
• avr_lib_lcdpcf8574_01.zip

Notes

• read risk disclaimer
• excuse my bad english