#include <Stepper.h>

const int stepsPerRevolution = 2048;  // 28BYJ-48

// Motor pins connected to Arduino
Stepper myStepper(stepsPerRevolution, 8, 10, 9, 11);
//Stepper myStepper(stepsPerRevolution, 7, 9, 8, 10);

void setup() {
  // Set speed in RPM
  myStepper.setSpeed(10);  // 10 RPM
}

void loop() {
  // Rotate continuously
  myStepper.step(stepsPerRevolution);  // 1 full revolution
}