In general, the 11er model should also be enough. For example, I have a DHT22 sensor in my fridge to measure and log temperature and humidity. For applications in “extreme” areas (0-20% or 80-100% humidity), the DHT22 should be used, as it also supports these areas in contrast to the DHT11. As a result, the DHT11 (blue) is cheaper, but the DHT22 (white) is more precise and lasts longer. You can see the difference between DHT11 and DHT22 here. Sensors such as the DHT11 and DHT22 are not only available for a few euros, but they can also measure the temperature as well as the humidity.Īs the sensors already carry (almost) everything, apart from a resistor, not many additional accessories are required. In addition, however, the humidity in certain situations or projects (such as a weather station) can be enlightening. With the Raspberry Pi and some sensors, it is easy to measure the temperature without much effort.
