I want to power a bluefruit with 2,3, or 4 aaa batteries, but am a bit baffled about how this is done without a step up/step down regulator to 5V to the USB socket. I have read https://learn.adafruit.com/adafruit-fea ... management and i understand that this board is geared towards using a 3.7V lipoly pack. is it possible to power this without a regulator using aaa? how many and to which pins?
Call me old fashioned.
Thanks