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How do you hook up a battery to an Arduino? Answered

I am making a circuit out of an Arduino Duemilanove and a 9v battery. To hook up the battery, you connect negative to Gnd under "power", but where does positive go? Vin, or 5v? I want to power other components (motors, LEDs, etc.) with the battery too. How can I access the power?

Tags:Arduino

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ryantm
ryantm

11 years ago

The positive lead should be connected to Vin. 5v is the regulated 5v line. You should only use 5v as an output and it probably can't handle too much current draw either (I don't know how much.).

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gmxx
gmxx

11 years ago

im not sure... you could wire t othe battery pack... i think the arduino has a power draw limit