The AVR series of microcontrollers are wonderful little devices with surprisingly many features built-in. The ATMega328P model sits at the heart of the famous Arduino Uno boards, and much of the useful functionality available on an Arduino actually comes directly from the microcontroller. The Arduino board adds handy things like USB support and compatibility with lots of add-on peripherals, but they’re expensive enough to make me think twice before hard-wiring them into something that just ...
