Softdevice / Whitelist Issues

We are attempting to deploy a system consisting of one nRF52840 devkit running the multi-NUS example app, and over a dozen custom boards based on the nRF52832. It all works fine at my facility, which is very much RF-quiet. When attempting to bring up the system at the customer site, we appear to be getting the custom units captured by other BLE central devices. Attempting to track those down, but only partially successful. The custom board is using the 112 softdevice. What is the difference between 112 and 132? I have a vague recollection that with 132 we could be connected by multiple devices whereas 112 was restricted to a single connection at a time. If that is the case, I want to try to change to the 132 device. Surely there is a straightforward way within SES to do that?

I am also looking for a way to have our device only allow connections from our central device. I remember seeing something like that, though I really don't want to go the full Bonding route (but may have to).

Suggestions very welcome! The customer is in a bit of a panic because we're setting up for a big demonstration to customer's customer this Friday.

Steve Hendrix
Parents
  • I'm now back from my trip to the customer site and getting caught up on emails. It appears the problem was repeated collisions due to the amount of traffic and update interval. I fixed it for the upcoming demo by extending the update interval and randomizing it so any two units don't repeatedly collide with one another. Thank you very much for all the help, and the reminder that I need to download and learn about the new nRF Connect SDK.

Reply
  • I'm now back from my trip to the customer site and getting caught up on emails. It appears the problem was repeated collisions due to the amount of traffic and update interval. I fixed it for the upcoming demo by extending the update interval and randomizing it so any two units don't repeatedly collide with one another. Thank you very much for all the help, and the reminder that I need to download and learn about the new nRF Connect SDK.

Children
Related