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   AI6YR Ben (ai6yr@m.ai6yr.org)'s status on Sunday, 26-Jan-2025 04:19:35 JST AI6YR Ben

   Random gadgets I don't need to build, but could: monitoring Bluetooth advertisement to determine when my neighbors are home, based on the advertisement of their Bluetooth hearing aids. 🤔 #hacking #projects

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     Dr. Eric J. Fielding, PhD (ericfielding@mastodon.social)'s status on Sunday, 26-Jan-2025 04:26:34 JST Dr. Eric J. Fielding, PhD

     in reply to

     @ai6yr Does Bluetooth signal have enough range? The WiFi signals from mobile phones would probably be a lot easier to detect at a distance, not to mention the cellular signals from the phones.

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     AI6YR Ben (ai6yr@m.ai6yr.org)'s status on Sunday, 26-Jan-2025 04:36:01 JST AI6YR Ben

     in reply to

     • Dr. Eric J. Fielding, PhD

     @EricFielding Well, Bluetooth is built into most devices nowadays, so you can pull that info without special hardware. Looks like typical range outdoors (unimpeded) is 55 to 78 meters, which is neighborhood level. 26 to 35 meters indoors.

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     Dr. Eric J. Fielding, PhD (ericfielding@mastodon.social)'s status on Sunday, 26-Jan-2025 04:36:01 JST Dr. Eric J. Fielding, PhD

     in reply to

     @ai6yr I did not know that Bluetooth would have such a large range, considering so many Bluetooth devices have limited power available for transmitting.

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     Mauricio Teixeira 🇧🇷🇺🇲 (badnetmask@hachyderm.io)'s status on Sunday, 26-Jan-2025 04:38:06 JST Mauricio Teixeira 🇧🇷🇺🇲

     in reply to

     • TÔ DE MUDANÇA

     @ai6yr @augustocc
     I have a "simple", but extendable, suggestion: Home Assistant on a Raspberry Pi (or any micro PC with Bluetooth). It will track the devices, and you can create automations based on their detection. Bonus points you can use for other home automation projects, and you don't have to maintain any software yourself.

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     AI6YR Ben (ai6yr@m.ai6yr.org)'s status on Sunday, 26-Jan-2025 05:05:32 JST AI6YR Ben

     in reply to

     • TÔ DE MUDANÇA
     • Mauricio Teixeira 🇧🇷🇺🇲

     @badnetmask @augustocc Not developing your own code?!? What's the fun in that? 🤪

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     Mauricio Teixeira 🇧🇷🇺🇲 (badnetmask@hachyderm.io)'s status on Sunday, 26-Jan-2025 05:05:32 JST Mauricio Teixeira 🇧🇷🇺🇲

     in reply to

     • TÔ DE MUDANÇA

     @ai6yr @augustocc
     That's always a consideration, sure. For the fun of it. 🤣

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     Wulfy (n_dimension@infosec.exchange)'s status on Sunday, 26-Jan-2025 05:52:57 JST Wulfy

     in reply to

     @ai6yr

     Directional Bluetooth antenna to configure residence Bluetooth emissions

   • Embed this notice
     Dr. Eric J. Fielding, PhD (ericfielding@mastodon.social)'s status on Sunday, 26-Jan-2025 05:52:57 JST Dr. Eric J. Fielding, PhD

     in reply to

     • Wulfy

     @n_dimension @ai6yr I know that Apple has a randomization feature for their WiFi MAC address on iOS to prevent tracking, but I don't think they have that for BlueTooth, yet.

   • Embed this notice
     AI6YR Ben (ai6yr@m.ai6yr.org)'s status on Sunday, 26-Jan-2025 05:52:58 JST AI6YR Ben

     in reply to

     Algorithm:

     1. Scan what devices are seen advertising Bluetooth
     2. Nickname every unique ID to English readable
     3. Nickname "unknown devices" with random English string to help with human comprehension, i.e. first unknown devices is "Apple - Strawberry - Pie" "Apple - Jumping - Fleas" etc.
     4. Allow user to change nickname when a device is recognized it "Bee - Hating - Neighbor - Hearing Aid" or "Nice Lady Down Street - iPhone"

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     Wulfy (n_dimension@infosec.exchange)'s status on Sunday, 26-Jan-2025 05:52:58 JST Wulfy

     in reply to

     @ai6yr

     Totally doable.

     Alerts late at night, esp. if you live fairly far from busy areas.

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     AI6YR Ben (ai6yr@m.ai6yr.org)'s status on Sunday, 26-Jan-2025 05:52:58 JST AI6YR Ben

     in reply to

     • Wulfy

     @n_dimension Yeah, I suspect something in Kali Linux already does it LOL (I don't wander that direction much)