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Bluetooth horror story time? I was trying to get a system working to record the motions of vampire bats (long story). Previous people had decided on a small ba
by Balgair 4y ago
Bluetooth horror story time?
I was trying to get a system working to record the motions of vampire bats (long story). Previous people had decided on a small backpack mounted to the bats with a LiPo battery, the sensors, and a Bluetooth transmitter to a laptop for data recording.
Everytime someone would walk by the room within 3 floors, the sensors would try to pair with their phone instead of keeping the connection to the laptop. If that sounds like nonsense, yes, I agree. Since this was in a research hospital there were no 'good' hours as patients and MDs and nurses walked by all the time. RF noise and the like is deep-dark-magic in normal times, combine with Bluetooth and you get a Rogaine subscription.
I did get it working, with Bluetooth even, but only after spending a weekend building a crummy Faraday cage with screendoor mesh, a ton of soldering, duct tape, and dodgy ground loops into the wall outlets.
Bluetooth, never again