I just received an order of 10 ATtiny85 microcontrollers from Jameco (they run about $1.75 each in small quantities) so I can begin to experiment with cloning Arduino code down to a much-less-expensive and easy to embed processor. So far it’s been a breeze, using an Arduino Uno as my programming device and getting the beloved blink sketch up and running in about half an hour.
Now back to designing the world’s smallest Attiny85 board…