#include <Stepper.h>

const int stepsPerRevolution = 200;

Stepper mystepper(stepsPerRevolution, 8,9,10,11);

void setup() {
mystepper.setSpeed(60);
Serial.begin(115200);
}

void loop() {
mystepper.step(stepsPerRevolution);
delay(500);
mystepper.step(stepsPerRevolution);
delay(500);
}