El codigo de arduino es #include <Stepper.h> Stepper stepper(100, 8, 9, 10, 11); int boton; void setup() { pinMode(12,INPUT); } void loop() { boton = digitalRead(12); // check if the pushbutton is pressed. if (boton == HIGH) { int sensorReading = analogRead(A0); for (int i=0; i<80; i++) { digitalWrite(8, HIGH); digitalWrite(9, LOW); digitalWrite(10, LOW); digitalWrite(11, LOW); delay(sensorReading/8 +4 ); digitalWrite(8, LOW); digitalWrite(9, HIGH); digitalWrite(10, LOW); digitalWrite(11, LOW); delay(sensorReading/8 +4 ); digitalWrite(8, LOW); digitalWrite(9, LOW); digitalWrite(10, HIGH); digitalWrite(11, LOW); delay(sensorReading/8 +4 ); digitalWrite(8, LOW); digitalWrite(9, LOW); digitalWrite(10, LOW); digitalWrite(11, HIGH); delay(sensorReading/8 +4 ); } delay(1000); for (int i=0; i<80; i++) { digitalW