Adafruit atmega32u4 breakout board adafruit 296 p the adafruit atmega32u4 breakout board is a neat breadboard friendly 32u4 ready to plug in to a usb port for power and programming running at 16mhz the 32u4 has 32kbytes of flash 2 5kbytes of ram and 1kbytes of eeprom plus of course it has a full speed usb 2 0 interface and a bootloader the bootloader is open source and works with avrdude p p other features include a big user friendly reset button a 500ma fuse on the usb power a pow