Great library but connection problem

[paulvanbladel]

First of all, thanks a lot for sharing this library. Great work. When trying the clock.py, I'm getting following error. Any idea how to proceed?

Thanks in advance

paul@nuc:~/github/morseapi$ examples/clock.py D0:FA:D0:59:57:89
No handlers could be found for logger "robots.position.ros"
Connecting to D0:FA:D0:59:57:89.
DEBUG:root:c804
DEBUG:pygatt.backends.gatttool.gatttool:gatttool_cmd=gatttool -i hci0 -I
INFO:pygatt.backends.gatttool.gatttool:Running...
INFO:pygatt.backends.gatttool.gatttool:Connecting to D0:FA:D0:59:57:89 with timeout=5.0
2018-01-18 12:47:22,050 robots.robot: WARNING - No action packages specified when creating an instance of GenericRobot. Likely an error!
ERROR:pygatt.backends.gatttool.gatttool:Timed out connecting to D0:FA:D0:59:57:89 after 5.0 seconds.
Traceback (most recent call last):
  File "examples/clock.py", line 44, in <module>
    run(bot_address)
  File "examples/clock.py", line 33, in run
    bot.reset()
  File "/home/paul/github/morseapi/morseapi/robot.py", line 117, in reset
    self.command("reset", bytearray([mode]))
  File "/home/paul/github/morseapi/morseapi/robot.py", line 103, in command
    if self.connection:
  File "/home/paul/github/morseapi/morseapi/robot.py", line 84, in connection
    self._connection = adapter.connect(self.address, address_type=pygatt.BLEAddressType.random)
  File "/home/paul/.local/lib/python2.7/site-packages/pygatt/backends/gatttool/gatttool.py", line 388, in connect
    raise NotConnectedError(message)
pygatt.exceptions.NotConnectedError: Timed out connecting to D0:FA:D0:59:57:89 after 5.0 seconds.
paul@nuc:~/github/morseapi$

I believe that the bluetooth connection is ok?

[bluetooth]# info D0:FA:D0:59:57:89 Device D0:FA:D0:59:57:89 Name: Dash Alias: Dash Appearance: 0x1234 Paired: yes Trusted: yes Blocked: no Connected: no LegacyPairing: no UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb) UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb) UUID: Vendor specific (af237777-879d-6186-1f49-deca0e85d9c1) [bluetooth]# quit [DEL] Controller 28:C6:3F:B5:86:C2 nuc [default]

[paulvanbladel]

The above was a connection problem which I could solve on bluetooth level. Getting other error now

from morseapi import MorseRobot No handlers could be found for logger "robots.position.ros" bot = MorseRobot("D0:FA:D0:59:57:89") 2018-01-18 13:52:28,233 robots.robot: WARNING - No action packages specified when creating an instance of GenericRobot. Likely an error! bot.reset() WARNING:pygatt.device:No characteristic found matching af230003-879d-6186-1f49-deca0e85d9c1 Traceback (most recent call last): File "", line 1, in File "morseapi/robot.py", line 117, in reset self.command("reset", bytearray([mode])) File "morseapi/robot.py", line 103, in command if self.connection: File "morseapi/robot.py", line 86, in connection self.sense.start() File "morseapi/sensors.py", line 34, in start self.subscribe() File "morseapi/sensors.py", line 51, in subscribe self.connection.subscribe(CHARACTERISTICS["dot_sensor"], self._dot_sensor_decode) File "/home/paul/.local/lib/python2.7/site-packages/pygatt/device.py", line 144, in subscribe self._notification_handles(uuid) File "/home/paul/.local/lib/python2.7/site-packages/pygatt/device.py", line 120, in _notification_handles value_handle = self.get_handle(uuid) File "/home/paul/.local/lib/python2.7/site-packages/pygatt/device.py", line 208, in get_handle raise exceptions.BLEError(message) pygatt.exceptions.BLEError: No characteristic found matching af230003-879d-6186-1f49-deca0e85d9c1

[paulvanbladel]

this did the trick :) https://github.com/peplin/pygatt/issues/161

[IlyaSukhanov]

See also: https://github.com/peplin/pygatt/issues/152 https://github.com/peplin/pygatt/pull/156

[IlyaSukhanov]

I think best option is actually ditch pygatt dependency. Other options include: https://github.com/getsenic/gatt-python https://bitbucket.org/OscarAcena/pygattlib

[jackdoe]

adding pip install pygatt==3.1.1 to the readme will solve a lot of people's problems :)

@IlyaSukhanov thanks a lot for the library! my daughter was super impressed we can use python on the dash and my dog was extremely upset at it haha

[IlyaSukhanov]

@jackdoe Glad you find it useful. Was the problem that the later version of pygatt >4 does not work?

[jackdoe]

ah sorry i should've been more specific, with pygatt > 3.2 i couldnt connect at all after following https://github.com/peplin/pygatt/issues/161 and downgrading to 3.1.1 everything was fine