Comments (1)
The cause is simple, your timing jitters. The cure is difficult.
The code is more or less a foundation on which to build further.
For example, no threading is used. In practice, all processes run simultaneously parallel to the DHT22 code and can influence the timing. As can be found in the documentation, timing needs to be quite precise.
You can address the issue from two sides.
- Try to get the timing as accurate as possible.
- Fix the outcome. Most errors are so obvious (>100% humidity) or have a completely different outcome compared to the previous one (temperature dropping from 25° to 0° between readings) that you already know they are erroneous values.
from dht22-raspberry-pi.
Related Issues (2)
- Loop interval timing HOT 2
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