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Topic: Max input voltages? (Read 701 times) previous topic - next topic

brucester83

Hi,

Is there a page anywhere that lists the max input voltages for arduino?

What would happen if i input 9 volts to an arduino anolog read port?

Thanks

JimboZA

Yep each product has a page here which lists all the info; here's the one for Uno for example.
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BillHo


What would happen if i input 9 volts to an arduino anolog read port?

Then this was the last time you use your arduino board.

JimboZA

Quote
Then this was the last time you use your arduino board.


Just to elaborate, you can change the upper end of the 0-5v analog scale to a voltage other than 5v by using the AREF pin and analogReference(External) but it makes it very clear here that the AREF voltage must never be over 5v.
Roy from ITCrowd: Have you tried turning it off an on again?
I'm on LinkedIn: http://www.linkedin.com/in/jimbrownza

A4kash


Quote
Then this was the last time you use your arduino board.


Just to elaborate, you can change the upper end of the 0-5v analog scale to a voltage other than 5v by using the AREF pin and analogReference(External) but it makes it very clear here that the AREF voltage must never be over 5v.

Is it gonna damage the arduino board if the aref voltage is over 5V?

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