Hello I am new here and looking for some kind of feedback from Smart Home enthusiasts:
Currently I am working with a few colleagues on designing a class of battery free devices (Think RFID, but as Sensor). Currently this is mostly done for industry applications. Passive sensors are used wherever electronic/batteries do not survive long enough or add to much weight.
Main idea for me is that I in the past kind of disliked the reliability of battery driven SmartHome devices, while at the same time cabling everything is not an option to me in a rented flat. I believe reliability has improved a lot over the last years (ZigBee ftw), but I kind of dread the idea to put sensors on every door and Window, as it would increase maintenance of my system.
So our idea is to put one cabled reader device in the middle of the room, i.e. like screwed to the ceiling next to the light where your smart lightbulps are and where there is electricity and use this to read out passive sensors (door/window-contacts, buttons, temperature). The middle position is kind of enforced as we do not expect the tehnology to have much more than 4 meters of range.
I am meanwhile wondering if this is just me who wants that/sees value in it or if there is more people out there who think the same?
Also, if yes: What would you be willing to pay to exchange all sensors in one room to be passive and have just one active cabled device? (200€,500€,800€?)
Is there features you think this device would definately need. e.g. (Wifi+mqtt,REST api, or Thread+Matter support)