String incoming;
int Buzzer;
int LedPin=2;
int Regresa=0;
int Alerta;
int Switch_y=0;
int Switching=0;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  for(int x = 2; x <= 13; x++){
    pinMode(x, OUTPUT);
    digitalWrite(x,HIGH);
  }
}
void loop() {// put your main code here, to run repeatedly:
  if (Serial.available() > 0)
  {
      Switch_y=0;
      incoming = Serial.readString();
      if(incoming.substring(2,8) == "000000"){
        Switch_y=0; 
        for(int y = 2; y < 7; y++)
            digitalWrite(y,HIGH);
        digitalWrite(8,HIGH);
        if (incoming.substring(10,11) == "0"){
          digitalWrite(2,LOW);
          if (incoming.substring(8,9) == "1")
            Buzzer=1;
          else
            Buzzer=0;
        }
        else {
          for(int y = 2; y <= 13; y++)
            digitalWrite(y,LOW);
        }
      }
      else{
        if (incoming.substring(7,8) == "1"){
          Buzzer=0;
          Switch_y=0;
          digitalWrite(8,HIGH);
          for(int y = 2; y < 7; y++)
            digitalWrite(y,LOW);}
        else{
          digitalWrite(2,HIGH);
          for(int y = 2; y <= 13; y++){
            if(incoming.substring(y,y+1) == "1"){
              if (y>=2 && y<=7){ 
                digitalWrite(8,LOW);
                Buzzer=0;
                Switch_y=y;}
              else
                digitalWrite(y,LOW);
            }
          }
          
          /*else
            Buzzer=0;*/
          if (incoming.substring(9,10) == "1")
            digitalWrite(8,HIGH);
          else
            digitalWrite(8,LOW);
        }
      }
  }
  else{
    if (Buzzer==1 || analogRead(A0)>=1023){
        digitalWrite(LedPin, LOW);
        delay(100);
        digitalWrite(LedPin, HIGH);
        delay(100);
        if (!Regresa) LedPin ++;
        else LedPin --;
        if (LedPin > 6) {Regresa = 1; LedPin=6;}
        if (LedPin < 2) {Regresa = 0; LedPin=2;}}
     else if(Switch_y>0){
        delay(300);
        if (Switching==0){
          Switching=1;
          digitalWrite(Switch_y,LOW);}
        else{
          Switching=0;
          digitalWrite(Switch_y,HIGH);}
      }
  }
}