- AVR software debounce example
- AVR external interrupt example
- AVRDUDE command line reference
- The OpenM128 development board
- list of 3rd party Attiny, Atmega support urls for the Arduino IDE
- An ATtiny13 development board
- Another ATmega Prototyping PCB in kit form
- The RKAT40c Compact Project PCB for 40 pin Atmegas