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I need to monitor the temperature and humidity of 15 rooms (15 sensors) wirelessly. This is to control the heating and ventilation in the house. The control and reading of the parameters will be in my software - closed solutions where there is only a manufacturer's application to read the parameters are out of the question. Transmission protocol and operating system any (I will adapt). I am concerned with the price of the sensor being reasonable.
Sonoff-SNZB-02 for £40 I think is a reasonable price, but has the problem that it only sends a temperature change message when a difference of at least 0.6 °C arises, and this is too infrequent to meaningfully control the heating valves.
SONOFF SNZB-02 .
With this SNZB-02 the sensors alone would come out to £600, which is acceptable to me. The protocol would then be ZigBeeToMQTT. But it can be other, e.g. bluetooth (of course, then there will probably be bluetooth receivers in each room, so the price may come out worse).
Sonoff-SNZB-02 for £40 I think is a reasonable price, but has the problem that it only sends a temperature change message when a difference of at least 0.6 °C arises, and this is too infrequent to meaningfully control the heating valves.
SONOFF SNZB-02 .
With this SNZB-02 the sensors alone would come out to £600, which is acceptable to me. The protocol would then be ZigBeeToMQTT. But it can be other, e.g. bluetooth (of course, then there will probably be bluetooth receivers in each room, so the price may come out worse).
