BLE scanning rig

The gear needed for wardriving

2 posts • Page 1 of 1

Postby sd4664 » Mon Sep 20, 2021 5:40 pm

I'm trying to use a Cyprus Bluetooth board in my setup and although it seems to work, it only reports about half the number of Bluetooth devices compared to the Wigle app. I was wondering if this is due to the window and interval sizes in my code - being a newbie I don't have much idea what these should be set to. The default in the example code I'm using is '96' for the scan interval and '48' for the scan window (which I think is times 0.625ms, so 60ms and 30ms respectively). Does anyone know if these are a good starting point? (I'm not concerned about battery life at this point). Many thanks.

Postby ecramp » Tue Oct 19, 2021 6:11 pm

There's a lot to learn about when this sort of thing is seen. It might be helpful to setup an environment (maybe out in the countryside) where you know exactly how many devices are in range ... but then what's the range? Your phone may simply have a greater range/better sensitivity.
Good Luck - the testing environment will need to be socially distanced ... LOL.
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