DHT22 Temperature and Humidity Sensor (SEN0137)

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“DHT22 Temperature and Humidity Sensor”

DHT22 is a compound digital temperature and humidity sensor which outputs calibrated digital signals. Thanks to the dedicated digital module acquisition technology and temperature and humidity sensing technology applied to the module, DHT22 comes with very high reliability and excellent long-term stability.

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Can I use 3.3V supply instead of 5V supply to power the sensor? If so are there any benefits of using one over the other?

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Hi Dominic,

Welcome to the forum and sorry for the delay in getting back to you!

The datasheet on DFrobot’s website mention that it will work at a supply voltage of 3.3V though both will use the same amount of power (the 5V comes almost directly through the USB supply so doesnt have to flow through a regulator which will have efficiency losses).


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