Arduino, OSX, and missing Ports
you have an atmel chip that is not recognized. it does not show up in:
- arduino, or
if you're not 100% sure that your chip is genuine, or, if you have tried all other things™, check out this repo which has an osx driver that allowed me to communicate with my board, equipped with a ATMEL 2560.
phew! you can hack hardware on your mac again!