M5 stack pin 21/22 (sda/scl) behaviour
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Hi.
I am trying to use this as normal inputs.
I have a square wave signal input, and if the signal is present during boot I cannot read it.
If I boot with nothing connected, I can connect and it works like expected.
Is there some special behavior on this pins if they are high or low at boot? -
So if anyone else stumbles upon this...
I had M5.powerbegin() in my code, and that will of course enable i2c, so that's the reason for my issues.