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DHT11 issues. Please update application.
09-05-2012, 01:44 AM
Post: #1
DHT11 issues. Please update application.
Any user working with DHT11 sensors, Emanuel and Paolo (robomotic) found a bug in how the sensor was read by the application. In order to solve this issue, panStamp now relies on this library for the DHT11 tasks.

Simply download the library and place it under arduino/libraries/dht11/

Daniel Berenguer
http://www.panstamp.com
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09-05-2012, 07:07 PM
Post: #2
RE: DHT11 issues. Please update application.
Can you elaborate a bit ?
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09-05-2012, 07:43 PM
Post: #3
RE: DHT11 issues. Please update application.
temphumpress for DHT11 was initially developed using custom reading routines since the available libraries didn't seem to work properly. All these developments were based on some DHT11 sensors I bought from an old supplier. However, current (production) sensors show the opposite behaviour. They don't work with the custom routines but do with the external library. Emanuel pointed to this direction in this post.

I'm not able to explain this correctly. Maybe timing issues in the old sensors... don't know. The fact is that current sensors mounted on battery-boards and other DHT11 sensors purchased from the web work with the new library.

On the other hand, DHT22 has always worked fine with the custom routines.

Daniel Berenguer
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