So, for the purposes of a project I'm working on, I need to have multiple bluetooth dongles connect to my Raspberry Pi 3 B. I'll be needing to use 3 dongles + on-board bluetooth. So, I tried using bluez and bluetoothctl with the onboard bluetooth and they work beautifully, scanning for beacons and giving me RSSI readings. Now, if I were to get USB Bluetooth dongles, would they be automatically picked up by Raspbian or is there a setup required? Also, I found these CC2540 serial bluetooth modules at a local shop, as opposed to using USB dongles, will they need setup for them to be used with bluetoothctl, bluez? Drivers? I've also read that with the PI 3 it's either the on-board bluetooth or a GPIO module, but not both at the same time, so would I better off using a USB dongle or maybe getting a TTL to usb interface?

Sticky: 1)https://stackoverflow.com/questions/53468040/using-raspberry-pi-3-on-board-bluetooth-other-bluetooth-dongles?noredirect=1#comment93822347_53468040

2)https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=227710&sid=bab8ada5c6f009c48d6a4aca456c1e46

  • Why do you need multiple bluetooth dongles? – CoderMike Nov 26 at 9:01
  • @CoderMike It's for a simulation / model I'm working on. They'll each be placed in slightly differing spots such that I'd be able to look up RSSI readings for a beacon passing next to them, and then figure out the direction it went in. – Ibraheem Nofal Nov 26 at 13:40
  • Why not use multiple Pi Zero W's and send the data back to a master Pi maybe with MQTT messages. – CoderMike Nov 26 at 13:56
  • @CoderMike Because atm that would slightly complicate things. I currently have a PI 3 and a Zero W on hand and seeing how they won't be very far apart, a few Bluetooth dongles + a USB extention cable would do the trick, and I'd rather use one PI for quicker prototyping, though what you suggested could be a possibility for later on. The master Pi is exactly the one that has the dongles connected to it. – Ibraheem Nofal Nov 26 at 14:00

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Browse other questions tagged or ask your own question.