Wemos D1 clone: digitalRead is unreliable - General Electronics - Arduino Forum

Hey there, not sure if it's the correct category, but I believe this is an electronic issue: I have two buttons hooked up to pin D3 and D4 of my Wemos D1 mini clone (these are the pull-up pins) that connect to GND when closed. Closing a button is supposed to change the direction of a motor through an ESC hooked to pin D0. I measured the voltage over D3 und D4 and GND and they're both nicely pulled up to 3.3V. However, the Motor is continuously changing directions (not very often but every 3-10

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