How to use UBUS commands for Bluetooth device scanning / pairing

This page contains instructions on how to use CLI / SSH command UBUS for scanning and pairing new Bluetooth devices on RUTX.

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The ubus command line tool allows to interact with the ubusd server (with all currently registered services). It's useful for investigating/debugging registered namespaces as well as writing shell scripts. For calling procedures with parameters and returning responses it uses the user-friendly JSON format. Below is an Help output of this command:

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root@Teltonika-RUTX11:~# ubus
Usage: ubus [<options>] <command> [arguments...]
Options:
-s <socket>:           Set the unix domain socket to connect to
-t <timeout>:          Set the timeout (in seconds) for a command to complete
-S:                    Use simplified output (for scripts)
-v:                    More verbose output
-m <type>:             (for monitor): include a specific message type
                       (can be used more than once)
-M <r|t>               (for monitor): only capture received or transmitted traffic
Commands:
- list [<path>]                        List objects
- call <path> <method> [<message>]     Call an object method
- listen [<path>...]                   Listen for events
- send <type> [<message>]              Send an event
- wait_for <object> [<object>...]      Wait for multiple objects to appear on ubus
- monitor                              Monitor ubus traffic
...

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Steps to use UBUS for Bluetooth on RUTX:

• Enable Bluetooth in Web UI menu Network -> Bluetooth -> General. Click "Save&Apply".

• Login using CLI and run scan.start command to start Bluetooth scan:

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ubus call blesem scan.start
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• To see scan results, use command scan.result:

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ubus call blesem scan.result
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You should see similar results format like this:

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{ 
      "scanning": 0, 
      "devices": [ 
              { 
                      "name": "RT_T", 
                      "rssi": -72, 
                      "address": "FF:CB:FA:6A:23:CB" 
              } 
      ] 
}
...

Skanavimas vyksta apie 30sek., todėl su „scanning“ rodoma ar vis dar yra vykdomas skanavimas. Šiuo atveju, galima užklausinėti „scan.result“ kol „scanning“ = 1.