Sensor De Humedad Y Temperatura

11/9/2019
Ernesto Erazo

En la clase del día de hoy trabajamos en la programación de un sensor de humedad y temperatura para la maqueta de casa domotica


Progamación
#include "DHT.h"

// Uncomment whatever type you're using!
#define DHTTYPE DHT11   // DHT 11
//#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
//#define DHTTYPE DHT21   // DHT 21 (AM2301)

// Connect pin 1 (on the left) of the sensor to +5V
// NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1
// to 3.3V instead of 5V!
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

int DHTPin = 5;     // what digital pin we're connected to

DHT dht(DHTPin, DHTTYPE);

void setup() {
   Serial.begin(9600);
   Serial.println("Moniteroando valores");
   dht.begin();
}

void loop() {
   // Wait a few seconds between measurements.
   delay(2000);

   // Reading temperature or humidity takes about 250 milliseconds!
   float h = dht.readHumidity();
   float t = dht.readTemperature();

   if (isnan(h) || isnan(t)) {
      Serial.println("Failed to read from DHT sensor!");
      return;
   }


   Serial.print("Humidity: ");
   Serial.print(h);
   Serial.print(" %\t");
   Serial.print("Temperature: ");
   Serial.print(t);
   Serial.print(" *C ");

   if(t>26)
   {
    digitalWrite(9,HIGH);//encender motor
   }
    else
   {digitalWrite(9,LOW);//apagar led
}