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#1 2014-10-28 20:48:39

Registered: 2014-07-08
Posts: 23

Nidec Sankyo micro stepper motor


I would need some advise on my setup as i am testing the Nidec Sankyo Micro Stepper Motor that you can find here.

Here is an image of my setup.

Sankyo testing setup

I have been using an Arduino board and an L293D motor driver.

Basically, I have been using what is described in this page for the bipolar stepper motor. I have removed the rotary pot and used the modified code below that increment the stepper motor by 1 stepper every 0.1 second.

 * MotorKnob
 * A stepper motor follows the turns of a potentiometer
 * (or other sensor) on analog input 0.
 * http://www.arduino.cc/en/Reference/Stepper
 * This example code is in the public domain.

#include <Stepper.h>

// change this to the number of steps on your motor
#define STEPS 100

// create an instance of the stepper class, specifying
// the number of steps of the motor and the pins it's
// attached to
Stepper stepper(STEPS, 8, 9, 10, 11);

// the previous reading from the analog input

void setup()
  // set the speed of the motor to 30 RPMs

void loop()
  // move a number of steps equal to the change in the
  // sensor reading


The motor has been working ok and its torque seems decent for such a small stepper motor. However, my main challenge was to make the connection with the motor. Pins are so small and short that I was not able to use any breadboard. I then decided to go with some hook clip as you can see on the picture. The problem is that the clips are so strong as compared to the motor pins that I broke motor pins many times.

Do you know any king of device or breadboard i could use for my testing? What would you recommend?

Last edited by Odysseus (2014-10-29 19:39:41)


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