DHT11 Temperature and Humidity Sensor

#include <DHT.h>

#define DHTPIN 2     // Pin where the DHT11 is connected
#define DHTTYPE DHT11   // DHT 11

DHT dht(DHTPIN, DHTTYPE);

void setup() {
	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' (it's a very slow sensor)
	float h = dht.readHumidity();
	// Read temperature as Celsius (the default)
	float t = dht.readTemperature();

	// Check if any reads failed and exit early (to try again)
	if (isnan(h) || isnan(t)) {
		Serial.println("Failed to read from DHT sensor!");
		return;
	}

	// Compute heat index in Celsius (isFahreheit = false)
	float hic = dht.computeHeatIndex(t, h, false);

	Serial.print("Humidity: ");
	Serial.print(h);
	Serial.print(" %	");
	Serial.print("Temperature: ");
	Serial.print(t);
	Serial.print(" *C	");
	Serial.print("Heat index: ");
	Serial.print(hic);
	Serial.println(" *C");

	delay(2000);
}