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Digital GPIO Pins Voltage


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#1 Stuart Crawshaw

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Posted 14 July 2011 - 03:55 PM

Hey all, Just reading the specs page again, and i noticed the Digital IO pins a rated at 3.3v but are 5v tolerant. Just a simple question, will using 5v Input or Output reduce the life expectancy of the device and is using 3.3v safer/recommended over 5v? Or does it simply not matter? Thanks in advance, Stuart.
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#2 Mario Vernari

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Posted 14 July 2011 - 04:07 PM

"Tolerant" means that's possible without any pain. I'd love the humans were "tolerant" each other as the Netduino pins are with 5V. Cheers
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#3 Stefan

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Posted 14 July 2011 - 04:11 PM

For the digital I/O's, it just doesn't matter. For analog I/O's it does. They are 3.3V, not 5V tolerant. An important one to keep in mind :)
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#4 Stuart Crawshaw

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Posted 14 July 2011 - 04:24 PM

"Tolerant" means that's possible without any pain.

I'd love the humans were "tolerant" each other as the Netduino pins are with 5V.
Cheers

Great Thanks.

For the digital I/O's, it just doesn't matter. For analog I/O's it does. They are 3.3V, not 5V tolerant. An important one to keep in mind :)

Indeedy

Thank you both for your input. Just had to make sure I was doing what is recommended.
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