Hello - my first topic here,
I have a problem with regulating voltage on the DRV8825 motor drivers - I used Arduino UNO + CNC shield + DRV8825 drivers for motors. I watched video about regulating voltage on my drivers Pololu - Video: Setting the Current Limit on Pololu Stepper Motor Driver Carriers but it is not working for me.
I connected my CNC shield by 12V 1.5A as you can see on the picture below.
After I measured voltage on my driver, but it showed still approximately 12V… as I rotate with screw on the driver DRV8825 on the left or right side anything was changed. I don´t know where is problem.
Thanks for all help