Hi Tom. Greetings to Australia from Germany.
I need a ATTiny because Arduino is to expensive.
I want to builf a RFID SmartSwitch... something like: putting your RFID, and than your TV, Computer and other stuff will turn on... you know that: if you come home from work, Switching too many devices on, takes too much time.
Or another idea which I will do later: waking up at morning, than your water heater turns on, your computer turns on, and other stuff.