its possible. Another option to try on a new motor driver board to help is to put a 100 or 220 Ohm resistor in series with your 2 control wires and PWM wire to your driver board.

IO0 is a special pin that already has a pullup on it. Its used to program the part. I suggest looking at the data sheet first so you can understand what pins to use and not to.

It all depends on how far it crashes. Best way is to protect the outputs from the ESP32

I have used this one, may not be what your looking for but it could prove out the issue because it has opto Isolators as inputs to protect your device.
https://www.amazon.com/gp/product/B078T ... UTF8&psc=1

Describe what your measuring with your A/D pin and anything attached to that pin.

There is something that does not make sense here. I have done exactly the same thing as you. Not using the exact same parts mind you. But basically the same motor driver and motor. I never had a issue when I would reverse the motor direction. The control lines and PWM signal are input only to the mo...

What would be more helpful it is give links to the exact modules you are using. And also what pins you have connected to them.

But: polling an input-pin with CoopOS is much faster

Just curious why you would pole an input-pin rather than set a IRQ for it.

You better just play it safe and get a wall wart that is 5v 1A. They can be had all over the place for a few dollars. While your at it you might want to get something like this to know what your actually using and the peaks. (NOTE: not saying to get this one, so do some homework on whats best for yo...

For myself, i can't help too much because its Arduino. But you should post your complete code for others to have a lookse