A diode placed across the motor if it is to only rotate in direction could protect the Photon.
This is written without having seen a diagram of the circuit or having knowledge of your goal.
A diode placed across the motor if it is to only rotate in direction could protect the Photon.
This is written without having seen a diagram of the circuit or having knowledge of your goal.
For stepper motors that’s not an option as the coils will always be energised both directions alternatingly.
Sorry…only saw motor, not stepper. Of course you are correct. I just came to the party too late. Grin…