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Topic: arduino external power supply (Read 1 time) previous topic - next topic


can i use a 9v battery as an  external power supply for arduino , which controls 4 dc motors , six sensors


If you mean one of those little rectangular things, then I wouldn't recommend it.


btw i have two external rechargeable batteries of 12volts each and im only using the 9volts one only to power up the arduino board ,  is this possible>>>???


The 9 volt can supply he arduino alone. The other batteries should power the motors. The 9 volt will not be enough to poer both.

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