Arduino Forum

Using Arduino => Motors, Mechanics, Power and CNC => Topic started by: bobotus on Feb 08, 2011, 11:04 pm

Title: M42SP-6TE stepper motor interfacing
Post by: bobotus on Feb 08, 2011, 11:04 pm
This is a 4-wire bipolar stepper motor. In the motor connector the first coil is wires 1 and 2, the second coil wires 3 and 4. Coils have 10 Ohms resistance.

The four pin arrangement with H-Bridge should work. (No H-bride available now to test, but with two wires it jump back and forth - will repost if H-bridge fails).

Schematic: (
Test code: Use the Arduino IDE built-in one rotation test code.
Graphical explanation of stepper motor operation: (

Reson for his post: couldn't comment on the old forum post and no easily available info on this steppermotor.