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Smart Home Forum by FIBARO Team

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Roberto R.

Fibaro Smart Implant with DHT-22 sensor


Hello everyone!

a few days ago I took a smart implant and connected a DHT-22 sensor to it to detect humidity and temperature in a greenhouse.

The Smart implant is powered by a 220-240 V power supply, DC 12V 1.25A, 15W output and is located inside an electrical panel while the sensor is positioned inside the greenhouse.

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Now my problem ... the internal temperature sensor of the smart implant reaches temperatures over 55 ° C even if the air temperature is 30 °.

At midnight tonight the internal sensor measured 35 ° C while the external sensor DHT-22 measured 22 ° C.

This thing seems strange to me also because the operating temperature range reaches max 40 ° C.

In this regard, in fact, the DHT-22 sensor measures the temperature and humidity regularly until the smart implant does not exceed 44 ° C, then flat graph, the DHT-22 stops giving me data.

If I unplug the power and plug it back in for a few minutes then it stops again.

At night, however, everything works perfectly.

What do you think it can be?
Wrong power supply?
Faulty smart implant?

A further test I did was put the smart implant outside the electrical panel, in the open air, the internal sensor still exceeds 47 ° C when in reality it is 30 ° C and the external sensor no longer sends me the data .

Thank you!

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