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Why are there loads of unnamed bluetooth devices around me? (feddit.de)

submitted 1 year ago by [email protected] to c/[email protected]

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I live in a big city in the center. When i activate "Show bluetooth devices without names" in the developer settings of my android 13 phone, there appear loads of this devices. I have no clue what they are. Does anyone know? Are that the bluetooth nanobots of the vaxxinated people? (/s to last question!)

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[–] [email protected] 8 points 1 year ago (1 children)

They're usually e-ink displays that get their power from NFC, so they're probably not Bluetooth

[–] [email protected] 3 points 1 year ago

That’s not correct. They run on coin cells and use their own RF protocol. Most use something like zigbee. Others even use light to transfer data.