I recently purchased a DHT22 (Also known as RHT03 on Sparkfun) from Proto-Pic temp and humidity sensor with the aim of using it as an outdoor sensor in the garden. Although there are several DHT22 libraries on github I couldn't get the nethoncho one (or the patched forks) to return anything other than checksum error.
However the combined dht11/22 one I found linked on arduino.cc seems to work just fine. Need to test with -ve temps next but an overnight plot on the bench seems reasonable
Despite many forums saying that it needs 5v I've managed to get it working OK with the 3.3v pin on my nanode, next step is to test on a jeenode and send the output via RF. Oh, and then get a solar panel to run the thing...
Feeling Pumped!
Having just had a day without power, and then going round the site to check everything came back online correctly (including services such a...
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At home we have a small (2.5KW - 10*250w panels) PV system to try and offset our daytime electricity usage. This is connected to a 'Grow...
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During the trials of concerto at CERN, I wanted to make the text fields a bit more dynamic like say following a specific twitter feed. Thi...
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'things that go bump in the tunnel' As I've beem following the LHC restart I've written a parser for the vistar status fee...
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