Hello all, I am in the process of building yet another self-balancing robot (just because) and I am now confronted with the problem of designing a proper power supply. Basically, the question is: Should I use two 9V batteries, short their ground connectors and use one to power the arduino board …

Power supply design

Using Arduino Motors, Mechanics, Power and CNC

CrossRoads August 10, 2012, 6:21pm 2

The little rectangular 9V batteries? They are only good for 200-300mAH, you won't get much life.
You are better off with 6 AAs.
How big are these motors?

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Power supply design

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