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DHT22 library for Arduino and ATtiny
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examples/DHT_Test
DHT.cpp
DHT.h
README.md Updated readme (2) Jun 12, 2013
keywords.txt Added Fahrenheit conversion functions Jun 12, 2013
license.txt
readme.pdf Updated readme (2) Jun 12, 2013

README.md

DHT

An Arduino library for reading the DHT family of temperature and humidity sensors.

Written by Mark Ruys, mark@paracas.nl.

Features

  • Support for DHT11 and DHT22, AM2302, RHT03
  • Auto detect sensor model
  • Low memory footprint
  • Very small code

Usage

#include "DHT.h"

DHT dht;

void setup()
{
  Serial.begin(9600);

  dht.setup(2); // data pin 2
}

void loop()
{
  delay(dht.getMinimumSamplingPeriod());

  Serial.print(dht.getHumidity());
  Serial.print("\t");
  Serial.print(dht.getTemperature());
}

Also check out the example how to read out your sensor. For all the options, see dht.h.

Installation

Place the DHT library folder in your <arduinosketchfolder>/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the Arduino IDE.

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