AVR:
* EEPROM * can run at 5V * 12 ADC inputs * 15kS/s ADC * JTAG
ARM:
* higher frequency/MIPS * 32bit architecture * only up to 3.6V * 8 ADC inputs * hardware divide * 400kS/s ADC * integrated HID and MSC device driver * integrated USB MSC boot loader (needs 12MHz crystal)
