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  • Accuracy is not great

    posted by wout8b on 03/02/2013
    0 0

    Involvement:General (knows how to use it) - Ownership:more than 1 month

    Pros:

    Cheap, easy to use, gives you temperature and humidity using only one dataline. I use it with Arduino + DHT11 library that can be found on the internet.

    Cons:

    Not very accurate, datasheet says +/- 2C. When I log temperature for a day, I see kind of spikes of 1-2C. I do not believe the actual temperature shows that kind of variation. "Average" temperature seems to agree with my room thermostat within a degree, which is not that bad.

    OtherThoughts:

    I am now trying the DS18B20 sensor from DX, it is supposed to be more accurate. It does not offer the humidity signal

    Bottomline:

    Works but signal is not stable enough to use, for me at least.

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