Is there a way to choose a bluetooth adapter?

[team1401]

I have a Pi that's polling another device already on Bluetooth. When that process runs, it kills the vevor-ble-bridge instance. Is there a way to choose a specific bluetooth adpater? I've added an external adapter and assigned the other job to use that one, but this still fails when that process kicks off. I'm hoping I can pin each adapter to each process and they'll play nice.

vevor-ble-bridge_1 | 2024-11-15 03:55:02 +0000 [DEBUG] {'running_state': 0, 'error': 0, 'error_msg': 'No fault', 'running_step': 0, 'running_step_msg': 'Standby', 'altitude': 0, 'running_mode': 0, 'set_level': 1, 'set_temperature': None, 'supply_voltage': 0.0, 'case_temperature': 0, 'cab_temperature': 26, 'md': 3}
vevor-ble-bridge_1 | Traceback (most recent call last):
vevor-ble-bridge_1 | File "//./main.py", line 334, in
vevor-ble-bridge_1 | result = vdh.get_status()
vevor-ble-bridge_1 | ^^^^^^^^^^^^^^^^
vevor-ble-bridge_1 | File "/vevor.py", line 170, in get_status
vevor-ble-bridge_1 | return self._send_command(1, 0, 85)
vevor-ble-bridge_1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
vevor-ble-bridge_1 | File "/vevor.py", line 161, in _send_command
vevor-ble-bridge_1 | response = self.characteristic.write(
vevor-ble-bridge_1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^
vevor-ble-bridge_1 | File "/usr/local/lib/python3.11/site-packages/bluepy/btle.py", line 200, in write
vevor-ble-bridge_1 | return self.peripheral.writeCharacteristic(self.valHandle, val, withResponse)
vevor-ble-bridge_1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
vevor-ble-bridge_1 | File "/usr/local/lib/python3.11/site-packages/bluepy/btle.py", line 543, in writeCharacteristic
vevor-ble-bridge_1 | return self._getResp('wr')
vevor-ble-bridge_1 | ^^^^^^^^^^^^^^^^^^^
vevor-ble-bridge_1 | File "/usr/local/lib/python3.11/site-packages/bluepy/btle.py", line 407, in _getResp
vevor-ble-bridge_1 | resp = self._waitResp(wantType + ['ntfy', 'ind'], timeout)
vevor-ble-bridge_1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
vevor-ble-bridge_1 | File "/usr/local/lib/python3.11/site-packages/bluepy/btle.py", line 362, in _waitResp
vevor-ble-bridge_1 | raise BTLEDisconnectError("Device disconnected", resp)
vevor-ble-bridge_1 | bluepy.btle.BTLEDisconnectError: Device disconnected

[bderleta]

There is a way, but it would require code modification. bluepy classes accept interface as an argument, in this case, as a third argument to Peripheral constructor, as per http://ianharvey.github.io/bluepy-doc/peripheral.html
So you'd need to modify this line:

vevor-ble-bridge/vevor.py

Line 136 in 76ed9da

self.peripheral = Peripheral(mac_address, "public")

and make it like:
self.peripheral = Peripheral(mac_address, "public", 1) to use secondary adapter. I don't have multiple BT adapters, so I can't test it - it's on you :)