Why stepper so hot? current not limited?

[DaveX]

@chris-1976

I also have a 4988 stepper driver board that does have a pot adjust for current but it doesnt have 4-in 4-out hookups. when I asked chatgpt for code, it made 4-in 4-out setup,

The inputs to the A4988 driver you show are STEP and DIRECTION, It is possible to use two wires of the "4-in"/quadrature signals to drive a STEP-DIR driver, since one wire can serve as DIR while a wire in quadrature to it serves as DIR.

Here are the "4-in" signals from Stepper.h:

arduino-libraries/Stepper/blob/c0e8e2e2826b9d80ee30cfcc0051663802fe5a25/src/Stepper.h#L56-L62

You could drive the STEP+DIR inputs wirth the C1+C2 pair or the C0+C3 pair--the trick is you need to step the 4 times with Steppr.h to deliver a full cycle to the driver's the STEP pin.

Stepper Driver with Quadrature from Stepper.h or Encoder

A STEP+DIR stepper driver can be driven with the quadrature signal from an encoder, or with the quadrature signal from the Arduino Stepper.h library Based on the discussion in Change stepper dir according to predifined analog input value - #22 by DaveX I wired a quadrature encoder directly to a stepper driver to drive a stepper motor in this Wokwi simulation: [image] It uses no real code because 2 square waves in quadrature from the encoder works fine to drive a STEP+DIR stepper driver: /…