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ESP32Encoder::useInternalWeakPullResistors = DOWN does not work #78

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rebior opened this issue Aug 18, 2022 · 0 comments
Open

ESP32Encoder::useInternalWeakPullResistors = DOWN does not work #78

rebior opened this issue Aug 18, 2022 · 0 comments

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@rebior
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rebior commented Aug 18, 2022

Hello, thanks for the great library!

My setup with the internal pull up resistors worked fine. When I changed it to use the pull down resistors nothing happened at all.
So I tried to set the pins to pull down explicitly after attaching the encoder and viola - it worked!

I did some research in the ESP32 docs and it seems that the PCNT library sets the inputs to pull up:
image
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