Current Limiting Stepper Driver with DRV8871

by Bill Earl

published August 22, 2016, last edited August 22, 2016

posted in Adafruit Products Robotics & CNC

Beginner

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.

Copy the code below and upload it to your Arduino.

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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.