#include <Stepper.h>
const int stepsPerRevolution = 200;
Stepper stepper1(stepsPerRevolution, 18, 19, 21, 22);
Stepper stepper2(stepsPerRevolution, 13, 12, 14, 27);

void setup(){
  stepper1.setSpeed(20);
  stepper1.setSpeed(90);
  Serial.begin(115200);
}
void loop() {
  Serial.println("dd");
  stepper1.step(stepsPerRevolution);
  stepper2.step(stepsPerRevolution);
  delay(500);
  Serial.println("dd");
   stepper1.step(stepsPerRevolution);
   stepper2.step(stepsPerRevolution);
   delay(500);

}