First little project at a new place and I'm having some trouble - hoping I can get some ideas. We have a BLE device using an NRF chip one which we've just enabled security and bonding. We're hoping to get our linux test fixtures set up so that the devices can be paired and bonded without the operator needing to accept the bonding request for every device. In the field, the end user will need to bond a device to a smartphone at least once.
I set up an agent using bt-agent --compatibility=NoInputNoOutput as described here: https://www.kynetics.com/docs/2018/pairing_agents_bluez/
The bonding worked wonderfully without user interaction on my linux desktop (Ubuntu 20.10). Problem is, when I remove the agent, I had hoped that the bonding process would return to normal. It does not - it still doesn't require user interaction to establish the bonding. A similar operation completed from my Android phone works as expected after I "forget" the device.
I'm looking for more ideas as to how to reset the bonding/pairing of this device on my linux computer such that I can easily trade back and forth between needing user input and not (for testing and demonstration purposes). I've tried the following:
- Remove the cache entry for my device in /var/lib/bluetooth//cache
- Remove the device using bluetoothctl => remove aa:bb:cc:dd:ee:ff
- Remove all agents using bluetoothctl => agent off (until no more agents remain)
- probably some other things that aren't coming to mind right now
Regardless, the device automatically bonds when I click it in my Bluetooth list (or choose to connect in bluetoothctl). Any other thoughts on how I can return my linux box to a state where it's requiring user interaction for the bonding process?
thanks a million
