ESP32 Stepper Nema17 Charging-LED lights up when motor stops

[DirtyStiletto]

Hello, everybody.

I connected a Nema 17 motor to the ESP32 using the "Sparkfun ESP32 Power Control Shield".

As soon as the motor stops, the charging LED of the ESP32 flashes and the voltage drops.
If I use a Nema 14 motor, the Scetch works fine.


Nema 14:
https://jkongmotor.en.made-in-china.com ... -2804.html

Nema 17:
https://www.banggood.com/100mm-Long-Sta ... rehouse=CN

Power Control Shield:
https://www.sparkfun.com/products/14155

[ESP_Sprite]

Do you use the same power supply to power the ESP32 and the motor shield? If so, your power supply may be underdimensioned. Steppers can eat up an awful amount of power when started.