Hello. I have an old Sony receiver which can be remotely controlled. Unfortunately original remote is lost. I decided to make new one using arduino. I tested my theory on breadboard with full fledged arduino and it works. But i want to make compact, portable, 3V CR2032 battery powered remote now. I decided to go with attiny because of its size and potential lower energy consumption. I made schematic of how it should work. Because im not best with electronics i would like ask someone more experienced to take a look at it and tell me if its not a complete nonsense and if it will function... my biggest fear lies in boot loading and uploading to attiny, in top part of schematic are pads which will serve for uploading to attiny from full fledged arduino.
will it work? thanks