Thermometer with hygrometer from Xiaomi called Mi Temperature a Humidity 2 can be easily found in the Czech Republic for less than two hundred. The cheapest is Chytré elektro for smart, which sells it for only 155 CZK. This is already close to the prices on Aliexpress, where it is now on sale from 120 CZK.
The device is powered by one CR2032 button battery (not included), which lasts up to a year. It has a square 1.5″ display on which it displays temperature and humidity, while the measurement is sufficiently accurate according to the experience of users.
The sensor also has Bluetooth, so it can send measured values to the Mi Home mobile application for Android and iOS, so it can also be connected to various home automation systems. However, a gateway such as the Xiaomi Smart Gateway may be more suitable for this.
Do-it-yourselfers can also create their own gate. For example, Jiří Vyorálek has instructions on the blog, who built a solution for a few crowns that reads data from the sensor and sends it to a computer with Home Assistant installed. And he can really control the entire smart household and connect seemingly unrelated things. Jakub Čížek also did dog tricks with this thermometer in a regular series about programming electronics.
In addition, this year a trick appeared on the Internet, that with alternative firmware the thermometer will use Zigbee instead of Bluetooth.
2023-12-28 09:37:31
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