Stepper Test

StepperTest/StepperTest.ino

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+/*Example sketch to control a stepper motor with DRV8825 stepper motor driver, AccelStepper library and Arduino: number of steps or revolutions. More info: https://www.makerguides.com */
+
+// Include the AccelStepper library:
+#include <AccelStepper.h>
+
+// Define stepper motor connections and motor interface type. Motor interface type must be set to 1 when using a driver:
+#define dirPin 2
+#define stepPin 3
+#define motorInterfaceType 1
+#define microStepsFactor 4
+
+// Create a new instance of the AccelStepper class:
+AccelStepper stepper = AccelStepper(motorInterfaceType, stepPin, dirPin);
+
+int dir = 1;
+
+void setup() {
+  // Set the maximum speed in steps per second:
+  stepper.setMaxSpeed(1000*microStepsFactor);
+  
+}
+
+void loop() { 
+  // Set the current position to 0:
+  stepper.setCurrentPosition(0);
+
+  int revs = random(1,5);
+  dir = -dir;
+  // Run the motor forward at 200 steps/second until the motor reaches 400 steps (2 revolutions):
+  while(stepper.currentPosition() != 200 * microStepsFactor * revs * dir) {
+    stepper.setSpeed(1000 * microStepsFactor * dir);
+    stepper.runSpeed();
+  }
+
+  delay(200);
+}