Hi and thank you for replying.

My bad, I though bluetooth was more safe than wifi but you are right, the both are in the same frequency range.

So my question becomes: are there some new technologies using safety wireless protocol ?

Another question, in all your project, do the sensors' data be always sent to the gateway (so always wifi activated) ? or do you create something to activate the wifi only 1 time by hour or something like that ?

Hi everyone !

I wonder if someone has already make his project using bluetooth instead of wifi. (because wifi is not the most safe for humans... sleeping etc)

What about the price between bluetooth/wifi transceiver ?

What about the code ?

Would it be more judicious using bluetooth ?

What do you think about this ?

Thank you for your replies.