boolean interruptor;
int potenciometro;
int estado=1;
unsigned long fin_tiempo_ms=0;

void setup(){
    pinMode(26,OUTPUT);
    pinMode(25,OUTPUT);
    pinMode(27,OUTPUT);
    pinMode(14,OUTPUT);
    pinMode(21,INPUT_PULLUP);
}
void loop(){
  //ej2
// interruptor=digitalRead(21);
   // if(interruptor==0){
 //digitalWrite(25,HIGH);
  //digitalWrite(26,HIGH);
 // digitalWrite(27,LOW);
  //digitalWrite(14,LOW);
 //}
 //if(interruptor==1){
 //digitalWrite(27,HIGH);
 // digitalWrite(14,HIGH);
  // digitalWrite(25,LOW);
  //digitalWrite(26,LOW);
 //}

//ej3
//potenciometro=analogRead(35);
//if(potenciometro<(4095*0.825/3.3)){
 //digitalWrite(25,HIGH);
 //digitalWrite(27,LOW);
  //digitalWrite(14,LOW);
 //}

 //if(potenciometro<(4095*1.65/3.3) && potenciometro>(4095*0.825/3.3)){
 //digitalWrite(25,LOW);
 //digitalWrite(26,HIGH);
 //digitalWrite(27,LOW);
  //digitalWrite(14,LOW);
 //}

 //if(potenciometro<(4095*2.475/3.3) && potenciometro>(4095*1.65/3.3)){
 //digitalWrite(25,LOW);
 //digitalWrite(26,LOW);
 //digitalWrite(27,HIGH);
  //digitalWrite(14,LOW);
 //}

//if(potenciometro<(4095*3.3/3.3) && potenciometro>(4095*2.475/3.3)){
 //digitalWrite(25,LOW);
 //digitalWrite(26,LOW);
 //digitalWrite(27,LOW);
  //digitalWrite(14,HIGH);
 // }
 
 //ej4
 //digitalWrite(25,HIGH);
 //digitalWrite(26,LOW);
 //digitalWrite(27,LOW);
//digitalWrite(14,LOW);
//delay(500);
 //digitalWrite(25,LOW);
 //digitalWrite(26,HIGH);
 //digitalWrite(27,LOW);
//digitalWrite(14,LOW);
    //delay(500);
    //digitalWrite(25,LOW);
 //digitalWrite(26,LOW);
 //digitalWrite(27,HIGH);
//digitalWrite(14,LOW);
    //delay(500);
    //digitalWrite(25,LOW);
 //digitalWrite(26,LOW);
 //digitalWrite(27,LOW);
//digitalWrite(14,HIGH);
    //delay(500);

//ej5

//if(millis()>fin_tiempo_ms) {
  //fin_tiempo_ms=fin_tiempo_ms+500;
  //if(!(estado==4))
  //{estado++;}
  //else{estado=1;};

//digitalWrite(25,estado==1);
//digitalWrite(26,estado==2);
//digitalWrite(27,estado==3);
//digitalWrite(14,estado==4);
//}

//ej6

}