
Setting up TinyUSBboard
TinyUSBboard http://matrixstorm.com/avr/tinyusbboard/introduction.html
As website states:
TinyUSBboard is an Arduino compatible, minimalistic and cheap AVR microprocessor board with USB interface and simple "do it yourself" capability.
brew tap osx-cross/avr
brew install avr-gcc
git clone https://github.com/baerwolf/USBaspLoader
cd USBaspLoader
make