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Author Topic: 5v Output working at 10v?? PROBLEM!  (Read 367 times)
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My arduino diecimilla is giving 10V at the 5v output, and also 6,6v at 3,3v output. Anyone had that problem before? is the first time I used it and I'm powering it with 12v DC... it also happens when USB powered.

Any idea? how to solve it?
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If you are reading 10 volts when powered from USB then you probably have a faulty volt meter.

If your sketches are functioning correctly then you almost certainly don't have much more than 5 volts powering the ATmega168 chip.

Try measuring a 1.5 volt battery with your meter and see what that reads.
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Thanks, I'll try, I hope it's just voltmeter
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