Difference between revisions of "How to use UBUS commands for Bluetooth device scanning / pairing"
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This page contains instructions on how to use '''ubus''' commands in [[CLI]] / SSH to scan and pair '''Bluetooth''' devices on '''RUTX10/11'''. | This page contains instructions on how to use '''ubus''' commands in [[CLI]] / SSH to scan and pair '''Bluetooth''' devices on '''RUTX10/11'''. | ||
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Revision as of 16:35, 19 May 2020
Main Page > General Information > Configuration Examples > Hardware application > How to use UBUS commands for Bluetooth device scanning / pairingThis page contains instructions on how to use ubus commands in CLI / SSH to scan and pair Bluetooth devices on RUTX10/11.
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.
Before you start using ubus commands to control Bluetooth, make sure to enable it first. You can do that in Network → Bluetooth → General settings. Click Enable Bluetooth and press Save & Apply.
- Now login to CLI or SSH and initialize blesemd, run blesemd -D command:
... root@Teltonika-RUTX11:~# blesemd -D Initializing blesemd... Warning: debug messages will be shown! Preparing bluetooth interface... Reading config... Devices loaded: 0 Creating database... modbus_data table already exists SENT_ID_TABLE already exists Create DB done Initializing uloop... Connecting to ubus... Initializing BLE device... Initializing BLE ubus interface... Adding ubus object... ...
- Run scan.start command to start Bluetooth scan:
... ubus call blesem scan.start ...
- To see scan results, use command scan.result:
... ubus call blesem scan.result ...
The scan process takes about 30 seconds. If you can see "scanning": 1 in the output, it means, that scanning is still in progress. After it finishes you should see a similar output:
... { "scanning": 0, "devices": [ { "name": "RT_T", "rssi": -72, "address": "FF:CB:FF:6F:23:FB" } ] } ...
The list of devices always contains "rssi" and "address", but "name" output might be missing if the device is not supported:
... { "scanning": 0, "devices": [ { "rssi": -42, "address": "2F:2A:0A:0A:7A:AA" }, { "name": "RT_T", "rssi": -77, "address": "CF:0A:52:5E:35:D7" } ] } ...
- In order to pair devices use this command:
... ubus call blesem pair '{"address":"FF:CC:FF:6A:23:CB"}' ...
If the pairing process was successful you should see this output:
... { "success": "device successfully paired" } ...
- To get the statistics from paired devices, use stat command:
... ubus call blesem stat '{"address":"FF:CB:FA:6A:23:CB"}' ...
You should see similar output:
... { "success": "successfully requested status", "model": "3901", "battery": 98, "temperature": "20.34", "humidity": 20, "firmware": "23", . } ...