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Topic: 5V input (Read 598 times) previous topic - next topic

kmkn

arduino UNO Input Voltage (limits)   is 6-20V, what happen if I give 5V?

Thanks

Grumpy_Mike

Through the Vin or jack barrel then it would not get enough voltage from the regulator to work correctly. Through the 5v pin however it would be fine.

kmkn

I did tried it, and it work fine for a month. Then it fail to function. So what went wrong, the board overheat because of low voltage?

Grumpy_Mike

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the board overheat because of low voltage?

No.
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and it work fine for a month. Then it fail to function

Yes but then it should not have functioned in the first place.
Does it work if you plug it into the USB.
The other thing it could be that you applied inputs greater than 0.5V above the power pin, as that was probably only at 3.5V a 5V input could kill the board.

kmkn


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and it work fine for a month. Then it fail to function

Yes but then it should not have functioned in the first place.
Does it work if you plug it into the USB.

not any more
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The other thing it could be that you applied inputs greater than 0.5V above the power pin, as that was probably only at 3.5V a 5V input could kill the board.

using power adapter label as 5V. Kill the board?

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