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Author Topic: motor draws much current - diabling other components?  (Read 1536 times)
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Yes but I would add extra decoupling.
do you mean I shall use two power supplies ?
- one for the arduino board
- one for the motors

what are good compact power supplies and able to supply much current for the motors?
I am thinking of some rechargable battery charged by the arduino board...
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using Arduino Uno Rev 3

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Quote
do you mean I shall use two power supplies ?
- one for the arduino board
- one for the motors
Well two power supplies are the ultimate in decoupling but are not essential. You can do more with inductors and capacitors. See the last schematic in this link:-
http://www.thebox.myzen.co.uk/Tutorial/De-coupling.html
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The sagging voltage due to the motor,   and interference from the motor,  are really two separate issues
and you need to consider both of them.

Get a voltmeter or multimeter and see if the voltage drops when you run the motor.
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