liltux/SimpleDHT

Simple, Stable and Fast Arduino Temp & Humidity Sensors for DHT11 and DHT22. http://learn.adafruit.com/dht

C++MIT

SimpleDHT

Simple, Stable and Fast Arduino Temp & Humidity Sensors for DHT11 and DHT22.

Simple: Simple C++ code with lots of comments.
Stable: Strictly follow the standard DHT protocol.
Fast: Support 0.5HZ(DHT22) or 1HZ(DHT11) sampling rate.

Usage

To use this library:

Download the zip from specified version: https://github.com/winlinvip/SimpleDHT/releases
Import to Arduino: Arduino => Sketch => Include Library => Add .ZIP Library...
Open example: Arduino => File => Examples => SimpleDHT => DHT11Default
Connect the DHT11 and Upload program to Arduino.
Open the Serial Window of Arduino IDE, we got the result as following.

=================================
Sample DHT11...
Sample OK: 19 *C, 31 H
=================================
Sample DHT11...
Sample OK: 19 *C, 31 H
=================================

Remark: For DHT11, no more than 1 Hz sampling rate (once every second).

Remark: For DHT22, no more than 0.5 Hz sampling rate (once every 2 seconds).

Sensors

DHT11, The product, datasheet and example, 1HZ sampling rate.
DHT22, The product, datasheet and example, 0.5Hz sampling rate.

Examples

This library including the following examples:

DHT11Default: Use DHT11 to sample.
DHT11WithRawBits: Use DHT11 to sample and get the 40bits RAW data.
DHT11ErrCount: Use DHT11 to sample and stat the success rate.
DHT22Default: Use DHT22 to sample.
DHT22WithRawBits: Use DHT22 to sample and get the 40bits RAW data.
DHT22Integer: Use DHT22 to sample and ignore the fractional data.
DHT22ErrCount: Use DHT22 to sample and stat the success rate.
TwoSensorsDefault: Use two DHT11 to sample.

Links

Winlin 2016.1