stepper motor cycle time

Projects Programming
1

With the attached hardware configuration and code as an example, what would be a reasonable estimate of the time to make a 50 step move?

code.txt (680 Bytes)

hardware.jpg
hardware.jpg875×608 109 KB

2

For short programs it is much easier for us if you include the code in your post using the code button </> so it is like this

#include <Stepper.h>

// change this to the number of steps on your motor
#define STEPS 200

// 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
int previous = 0;

void setup()
{
  // set the speed of the motor to 500 RPMs
  stepper.setSpeed(500);
}

void loop()
{
  // get the sensor value
  int val = analogRead(0);

  // move a number of steps equal to the change in the
  // sensor reading
  stepper.step(val - previous);

  // remember the previous value of the sensor
  previous = val;
}

With a speed of 500 RPM or 8.333 revs per second the interval between steps will be 120 millisecs (if my maths is correct).

I will leave it to you to calculate the time for 50 steps.

...R