#include <Stepper.h>
const int REVOLUCION =200;
Stepper Motor1(REVOLUCION,8,9,10,11);
Stepper Motor2(REVOLUCION,3,4,5,6);

void setup() {
Motor1.setSpeed(60);
Motor2.setSpeed(60);
}

void loop() {
Motor1.step(REVOLUCION);
delay(500);
Motor2.step(-REVOLUCION);
delay(500);

}