Current Limiting Stepper Driver with DRV8871

published August 22, 2016, last updated August 22, 2016

posted in Adafruit Products Robotics & CNC

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Project guide

Testing

To test out our current limiting stepper driver, we'll use the standard Arduino Stepper library. This is included with the Arduino IDE, so no additional libraries need to be installed.

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#include <Stepper.h>

// A 200-step motor connected on pins 2-5
Stepper stepper(200, 2,3,4,5);

void setup() 
{
  // Rotate at 20 rpm:
  stepper.setSpeed(20);

  Serial.begin(9600);
  Serial.println("Stepper Test!");
}

void loop() 
{
  // Step forward 1000 steps
  Serial.println("forward");
  stepper.step(1000);

  // Step in reverse 1000 steps
  Serial.println("backward");
  stepper.step(-1000);
}

#include <Stepper.h>

// A 200-step motor connected on pins 2-5
Stepper stepper(200, 2,3,4,5);

void setup() 
{
  // Rotate at 20 rpm:
  stepper.setSpeed(20);

  Serial.begin(9600);
  Serial.println("Stepper Test!");
}

void loop() 
{
  // Step forward 1000 steps
  Serial.println("forward");
  stepper.step(1000);

  // Step in reverse 1000 steps
  Serial.println("backward");
  stepper.step(-1000);
}

The motor should start turning back and forth - 1000 steps at a time.