DHT22 Temperature & Humidity Sensor

Page last updated 29 Mar 2012, by Paul Adams. 0 replies

Library

Modified version of the existing DHT22 library, since the old one didn't work well for me. I have incorporated various suggestions from around the web, principally from the Sparkfun product page: http://www.sparkfun.com/products/10167

Issues

  • The checksum doesn't get reliably calculated, it is out by 1 quite often
  • Accuracy seems to be an issue - I have two side-by-side on a breadboard, and they give different temperature and humidity readings

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