#include <Stepper.h>

#define STEPS 200  // Steps per revolution (adjust if needed)
Stepper stepper(STEPS, 8, 9, 10, 11);

void setup() {
  stepper.setSpeed(60);  // Set motor speed (RPM)
}

void loop() {
  stepper.step(STEPS / 2);  // Rotate 180° forward
  delay(500);
  stepper.step(-STEPS / 4); // Rotate 90° backward
  delay(500);
}