The house is connected to the internet. Localy I am running a raspberry pi 3 with a flask-mqtt server. The pi is also equiped with an DS18B20 sensor and posts temp data via mqtt.
Other than that there are esp8266 modules with sensors placed in the house.
The mqtt broker runs somewhere else.
Why do I want these data?
Is it about the integrity of the walls/house? I can probably seriously reduce the data beeing sent from the sensors. But if I want the 'weatherstation' functionality this is ofcourse different.
Maybe do some processing on the sensors themselves. Like soundpressure levels. Better calc dB in the sensor and make the microphone inaccessible from the outside. (privacy).
I realy have to think about these matters and somehow incorporate them in the (software) design.