GPIO pin tolerant to 5V

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geraldo.gomes
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GPIO pin tolerant to 5V

Post by geraldo.gomes » Fri May 11, 2018 11:05 pm

Hi,

There is a GPIO pin tolerant to 5V in Odroid C1+?

Thanks a lot.

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odroid
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Re: GPIO pin tolerant to 5V

Post by odroid » Fri May 11, 2018 11:09 pm

No. You have to use level-shifter circuits.

patoberli
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Re: GPIO pin tolerant to 5V

Post by patoberli » Fri Jun 26, 2020 5:17 am

Sorry for reusing this old thread.

I have an WS2813 LED strip, with external power supply. The LED strip is 5 V.
Can I connect the data pin to one of the C2 GPIO pins, or could that break the C2? Currently I'm using an Arduino, where the control is working, but the Arduino is 5 V.
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pato

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mad_ady
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Re: GPIO pin tolerant to 5V

Post by mad_ady » Fri Jun 26, 2020 6:14 am

If control is input only (on the led side) and 3.3V tolerant, then it should work. Search how the RPI folks are connecting to led strips. If it works directly on RPI, it works on odroid too.

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Re: GPIO pin tolerant to 5V

Post by patoberli » Fri Jun 26, 2020 4:09 pm

After much more searching I finally found a tutorial that states it should work. Will soon try it, once I get the neopixel python library to load. But that's another problem outside of this thread.
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