dht22-avrlibc

A DHT22 library working on AVR MCUs, which is able to run multiple DHT22 devices in the same time.

What is DHT22

DHT22 (or AM2302) is a low-cost digital temperature and humidity sensor to measure the temperature and relative humidity in the air.

Requirement

1. Platform: AVR MCUs
2. avr-libc: the standard library AVR-GCC compiler using

How to use

1. Include the dht22.h
2. Use dht22_init() to specify the port, pin ,ddr and bit the DHT22 device using
3. Use dht22_getdata() to get the temperature and relative humidity from DHT22

License

dht22-avrlibc is released under the MIT license. Use of this source code is governed by a MIT-style license that can be found in the LICENSE file.