Conexión de Arduino y AM2302

Materiales

• 1 Sensor AM2302.
• Arduino Uno, Arduino Nano.

Código

#include "DHT.h"          // DHT & AM2302 library


// Data pin connected to AM2302
#define DHTPIN 2

#define DHTTYPE DHT22       // DHT 22  (AM2302)

DHT dht(DHTPIN, DHTTYPE);   // LED pins

//////////////////////////////////////////////////////
//
// SETUP
//
void setup() {
  // Setup serial monitor
  Serial.begin(9600);
  dht.begin();
}
  

void loop() {
  
  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht.readHumidity();
  float t = dht.readTemperature();

  // check if returns are valid, if they are NaN (not a number) then something went wrong!
  if (isnan(t) || isnan(h)) {
    Serial.println(F("Failed to read from DHT"));
  }
  else {
    Serial.print(F("Humedad: ")); 
    Serial.print(h);
    Serial.print(F(" %\t"));
    Serial.print(F("Temperatura: ")); 
    Serial.print(t);
    Serial.println(F(" C"));
  }
  
  // Wait 3 seconds
  delay(3000);
}

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Fuentes:http://arduinocostarica.blogspot.com/