int luzValue = 0;
int tempValue = 0;
int humeValue = 0;
float temperatura;
int luz;
int humedad;

int regarPin = 2;

int sensorHumedad = A5;
int sensorLuz = A4;
int sensorTemperatura = A3;

void setup() {
  pinMode(regarPin, OUTPUT);

  Serial.begin(9600);
}

void loop() {
  luzValue = analogRead(sensorLuz);
  tempValue = analogRead(sensorTemperatura);
  humeValue = analogRead(sensorHumedad);

  delay(1500);

  // ----------------------------------------------------
  // Imprimir valores
  // ----------------------------------------------------
  temperatura =  (5.0 * tempValue * 100.0) / 1024;
  Serial.print("Temperatura:");
  Serial.print(temperatura);
  Serial.println(" C");

  luz = (100.0 * luzValue) / 1024;
  Serial.print("Luz:");
  Serial.print(luz);
  Serial.println("%");

  humedad = (100.0 * humeValue) / 1024;
  Serial.print("Humedad:");
  Serial.println(humedad);
  Serial.println("=======================================================================");

  // ----------------------------------------------------
  // Chequeo si debo regar
  // ----------------------------------------------------
  if( humedad <= 50 && luz < 70 && temperatura < 30) {
    digitalWrite(regarPin, HIGH);
    Serial.println("Debe regar");
  }
  else{
    digitalWrite(regarPin, LOW);
    Serial.println("NO debe regar");
  }
  Serial.println("=======================================================================");
}