Any of them, I've been using everything from teensy,nano, and rebranded Uno. So far they have all worked like a charm and at a steep price reduction. Example, 5

Any of them, I've been using everything from teensy,nano, and rebranded Uno. So far they have all worked like a charm and at a steep price reduction. Example, 5 nanos for $15 from Amazon [1]. [1] - https://www.amazon.com/XCSOURCE-ATmega328P-Controller-Arduino-TE359/dp/B015MGHH6Q/ref=sr_1_4?s=electronics&ie=UTF8&qid=1470925988&sr=1-4&keywords=arduino+nano https://www.amazon.com/XCSOURCE-ATmega328P-Controller-Arduin...