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Programming Pro Trinket with an Arduino

Pro Trinket is a ATmega328 based board by Adafruit. It's compatible with Arduino IDE and most of the code written for Arduino. It's small factor, cheap and comes with neat accessories like this LiPo backpack addon.

Pro Trinket is cheaper, smaller and consumes less power than a typical Arduino board because it lacks things like the FTDI chip used to communicate between the programmer and the board.

To program the Pro Trinket you need to have an external FTDI board or figure out how to make programming over USB work with Linux. I opted for the first option ...