Thanks. I will try that. Could you tell me the physics theory of the small resistor? Do they protect the ESP32 from shortcut or something else?username wrote: 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.
resistors limit current. the higher the value the more they limit. For example, if you set a GPIO pin high, but that pin is shorted to gnd for whatever reason you will wind up blowing that pin. However, if you had a series resistor in line with that pin and this happened you would protect that pin from that happening.Thanks. I will try that. Could you tell me the physics theory of the small resistor? Do they protect the ESP32 from shortcut or something else?