I have an Arduino / C++ sketch that is intended for AT90USB646/647 MCUs. It reads data from multiple i/o pins and transmits it over serial interface.
I need that code to be rewritten for use on a lower-end microcontroller (m328 or m168). Of course, such microcontroller has less i/o pins, so you'll need to modify the code to take data from shiftIn and shiftOut registers.
- current schematics (sbserialv1),
- new suggested schematics with shift registers (sbserialv2, ignore the tiny45 part it's for another function),
- code that I need to modify ([url removed, login to view]).
Any modifications to the suggested schematics are welcomed. But please note that the entire code functionality needs to be fully preserved. Serious bidders only, you need to fully understand what you're doing. Honest work - honest pay. Max 4 days to complete.