What is the resistance value of the internal pull-up and pull-down of GPIO of ESP-WROOM-32?
please tell me.
GPIO internal pull-up and pull-down resistance value
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Re: Internal resistance value
It's not a really precise value (because that is hard to do with resistors in silicon) but you can assume it's something between 10K and 100K. Internally, we use 50K as a go-to value, I think.
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Re: Internal resistance value
Thank you very much. It was very helpful.
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Re: GPIO internal pull-up and pull-down resistance value
Hi,
10K is waaayyy to low, if you have several pullup's downs, the drain from 3.3 or GND to all input becomes to high and the board will reset.
I use 1M and that works perfectly fine, even higher could be ok, the board is very sensitive!
regards
Johan
10K is waaayyy to low, if you have several pullup's downs, the drain from 3.3 or GND to all input becomes to high and the board will reset.
I use 1M and that works perfectly fine, even higher could be ok, the board is very sensitive!
regards
Johan
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- Posts: 9739
- Joined: Thu Nov 26, 2015 4:08 am
Re: GPIO internal pull-up and pull-down resistance value
...too low for what? Your comment doesn't really make sense in the context of this topic?aanscharius wrote: ↑Tue Dec 13, 2022 3:21 pm10K is waaayyy to low, if you have several pullup's downs, the drain from 3.3 or GND to all input becomes to high and the board will reset.
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