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Sacramento, CA
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Hey everyone! I'm new to Arduino, so this might be a "dumb" question: is it possible to use the 5v pin on the Arduino to supply power to the Arduino? I know it is usually used for power output, but I was was wondering if it works as a power input. Thanks in advance!

- Charles Fries
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Yes, you can supply 5V to the Arduino via the 5V pin, bypasses the voltage regulator.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
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Thanks!
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Utah
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but their is just a vin pin.
why not use it?
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You can't put 5V in the Vin pin and get 5V at the chip. You lose voltage across the reverse protection diode and thru the regulator.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
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oh good to know.
But would it work with higher voltage? 7-12v
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Yes, 7-12V at the Vin pin will let the regulator create 5V.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
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oh good to know.
But would it work with higher voltage? 7-12v

....that's the whole point of it ;-)


Texy
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