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Microcontrollers. Separate power to board and servos. Why common ground?
I am working on an Arduino based robot. Being converted from a rather ancient OOPic controller.
You don't want to control the logic end of things using same battery as the servos, given that they draw rather huge amounts of juice. Forgive my ignorance, but why do you have to have a common ground for the logic vs. the locomotion sides of the beast? I've never quite understood this.
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