What is the best way to power this unit
Servos have 3 wires, two for power and one for control. If my servo is getting its power from a separate power supply how is the control from the uno wired up, do the uno and the power supply somehow need to share a ground ?
Do I attach the walwart -Ve to both the servo and to the gnd on the uno?Does it make any difference that the uno is 5V and the servo 6V?Does it make any difference where on the uno I attach the walwart wire?
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