I was looking for more data on filtered 3.3V* pin and stumbled upon the thread below, it was pretty helpful but I was wondering if someone could answer a more specific question.
One of my Particle Core’s outputs exactly 3.21V, even when powered from different supplies and this number is pretty solid and accurate. My question is, can I expect this to be the same across all (or most) Core’s / Photons ? If there is an error in differing from this value, what would it be?
The reason I ask is because I’d like to set up a number of connected devices that use an analog sensor to measure distance. Since the output result depends on voltage, I need a very accurate voltage source and if it differs from one Core to another, that would throw off results.
Thanks in advance!