Most likely yes. Of course depends on how accurate and secure this must be: you can cover it with something, so it disappears. Clone BLE tag. Or might still have enough signal strength just on the other side of the door.
For the gateway, take a look at EspruinoHub
Hi, thanks for your comment. Sure, if I cover it with something it will disappear. To work around something blocking the signal I was hoping that 2-3 pucks should pick it up unless I put an iron pot on it or something. To check if it is inside our outside the room I was thinking to analyze signal strength collected from all of the pucks with the hope that I can determine its outside... What do u mean by "Clone BLE tag" ?
Re: Clone: If someone knows that you are doing this, and maybe finds this forum :) can figure out how you are doing.
For example someone can go there, listen to BLE advertisements, and set up the same BLE advertisement with a separate device, and remove your BLE tag (or the item it's attached to).
Depends on how secure this must be. For example, LOGITacker uses nRF52840 dongles (kind of "bigger brother" of the nRF52832 in the Puck, but still just an easily available 10-15$ device) to attack Logitech wireless devices. And even take over a computer with taking over a keyboard / mouse.
Of course I don't know your circumstances. If you don't expect such "high-tech" attack, just listening to BLE advertisement & checking signal strength is probably good enough.
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