avr-test-make Info for fuses can be found here: http://eleccelerator.com/fusecalc/fusecalc.php?chip=atmega328p ATTRIBUTION This is based of gists created by the user holachek, you can find the originals here: https://gist.github.com/holachek/3304890 https://gist.github.com/holachek/3304608