Dear Sir, hello.
I can do easy, because I have more than approx. 10 year AVR8 experience in the past. In addition, my experience area is measures and metrology.
So, all I need from you is a additional info (like schematic with ATmega8, or verbal description) to see inputs outputs etc.
Best regards, Anton.
What IDE do you need: Codevision, WinAVR, AVR Studio?