//344 metros * segundo
///0.000344
//triger emite
//eco resive
//triger eco buzer led
#define trigP 12
#define ecoP 11
#define buzP 10
#define ledP 9
//serial begin inicializa la pantalla

void setup() {
  Serial.begin(115200);
  pinMode(trigP, OUTPUT);
  pinMode(ecoP, INPUT);
  pinMode(buzP, OUTPUT);
  pinMode(ledP, OUTPUT);
}

void loop() {
  //-----------------------
  double goldBat = bat();
  if(goldBat >700){
    noTone(buzP);
    digitalWrite(buzP, LOW);
  }else if(goldBat >150 && goldBat <= 200){
    buzNoice(goldBat);
    light();  
    delay(1000);
  }else if(goldBat > 150 && goldBat <= 200){
    buzNoice(goldBat);
    light();  
    delay(750);
  }else if(goldBat > 150 && goldBat <=200){
    buzNoice(goldBat);
    light();  
    delay(500);
  }else {
    buzNoice(goldBat);
    light();  
    delay(250);
  }

  //-----------------------
}
double bat(){
  digitalWrite(trigP, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigP, LOW);

  double duration = pulseIn(ecoP,HIGH);
  double distance = (duration/2) *0.0344;
  //Serial.print("Distancia en CM:");
  //Serial.println(distance);
  return distance;
}

void buzNoice(double value){
  tone(buzP,value,1000);
  delay(500);
  noTone(buzP);
}

void light(){
  digitalWrite(ledP, HIGH);
  delay(500);
  digitalWrite(ledP, LOW);
}