Comments (25)
undera
commented on July 28, 2024
1
Bleak is not installed.by default because pylgbst works with several variants of BLE backends. you need to decide which you use and install it
In your case things are more complex: bricknil has installed its own patched bleak, and pylgbst uses it and fails. You should uninstall bricknil and bricknil-bleak, then install official bleak and then try again.
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undera
commented on July 28, 2024
Hello,
I am very excited to hear about your task, would love to help.
With RPi, I saw that there are various behaviors from device to device, probably due to hardware and software differences.
What you should try is to experiment around version of bleak Python library. Which version do you use at the moment? It should be something recent from this list: https://pypi.org/project/bleak/#history
Also, I can see that bricknil uses a patched version of Bleak: https://github.com/virantha/bleak that is installable as bricknil-bleak (https://pypi.org/project/bricknil-bleak/#history). This may be worth trying, to uninstall official bleak library and install bricknil-bleak instead. The author made it to clash with official bleak, so you need to be extra careful with what is installed first and second. THis may also explain why bricknil works and others don't. I'll be happy to help you through the process.
I understand the urgency, let's see if there can be some progress from bleak library variants.
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larsskj
commented on July 28, 2024
Hm - did some more troubleshooting, and lo and behold, now something works.
I was foolish enough to assume that the bleak library had been installed, but even though BrickNil uses Bleak, apparently it doesn't use the Python library. pip install bleak changed a lot.
But now I wonder: If pylgbst depends on bleak, how come it doesn't complain when the package isn't installed?
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larsskj
commented on July 28, 2024
Sorry - my last comment was posted just after you posted yours.
I'll try some troubleshooting along the lines you suggest and report back.
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larsskj
commented on July 28, 2024
I've now done it properly and created a virtual environment. Installing pylgbst and bleak and running demo.py I get this debug output:
6109 DEBUG comms-bleak Connection status: True
6149 DEBUG hub Waiting for builtin devices to appear: (None, None, None)
6250 DEBUG hub Waiting for builtin devices to appear: (None, None, None)
6351 DEBUG hub Waiting for builtin devices to appear: (None, None, None)
6353 DEBUG bleak.backends.bluezdbus.manager received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8): ['org.bluez.Device1', {'Appearance': <dbus_fast.signature.Variant ('q', 6144)>}, []]
6451 DEBUG bleak.backends.bluezdbus.manager received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Notifying': <dbus_fast.signature.Variant ('b', True)>}, []]
6452 DEBUG bleak.backends.bluezdbus.manager received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04\x00\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00'))>}, []]
6453 DEBUG hub Waiting for builtin devices to appear: (None, None, None)
6454 DEBUG comms-bleak Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x0', '0x1', '0x2', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0']
6455 DEBUG bleak.backends.bluezdbus.manager received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04\x01\x01\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00'))>}, []]
6456 DEBUG comms-bleak Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x1', '0x1', '0x8', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0']
6457 DEBUG bleak.backends.bluezdbus.manager received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x042\x01\x17\x00\x00\x00\x00\x10\x00\x00\x00\x10'))>}, []]
6458 DEBUG comms-bleak Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x32', '0x1', '0x17', '0x0', '0x0', '0x0', '0x0', '0x10', '0x0', '0x0', '0x0', '0x10']
6460 DEBUG bleak.backends.bluezdbus.manager received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04;\x01\x15\x00\x02\x00\x00\x00\x02\x00\x00\x00'))>}, []]
6461 DEBUG comms-bleak Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x3b', '0x1', '0x15', '0x0', '0x2', '0x0', '0x0', '0x0', '0x2', '0x0', '0x0', '0x0']
6461 DEBUG hub Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004000102000000000000000000'
6463 DEBUG hub Decoded message: MsgHubAttachedIO({'payload': b'02000000000000000000', 'port': 0, 'event': 1})
6465 DEBUG hub Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x7654c5b0>>: MsgHubAttachedIO({'payload': b'02000000000000000000', 'port': 0, 'event': 1})
6468 WARNING hub Have no dedicated class for peripheral type 0x2 (SYSTEM_TRAIN_MOTOR) on port 0x0
6472 INFO hub Attached peripheral: Peripheral on port 0x0
6484 DEBUG hub Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004010108000000000000000000'
6484 DEBUG hub Decoded message: MsgHubAttachedIO({'payload': b'08000000000000000000', 'port': 1, 'event': 1})
6485 DEBUG hub Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x7654c5b0>>: MsgHubAttachedIO({'payload': b'08000000000000000000', 'port': 1, 'event': 1})
6487 WARNING hub Have no dedicated class for peripheral type 0x8 (LED_LIGHT) on port 0x1
6489 INFO hub Attached peripheral: Peripheral on port 0x1
6499 DEBUG bleak.backends.bluezdbus.manager received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04<\x01\x14\x00\x02\x00\x00\x00\x02\x00\x00\x00'))>}, []]
6500 DEBUG comms-bleak Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x3c', '0x1', '0x14', '0x0', '0x2', '0x0', '0x0', '0x0', '0x2', '0x0', '0x0', '0x0']
6501 DEBUG hub Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004320117000000001000000010'
6502 DEBUG hub Decoded message: MsgHubAttachedIO({'payload': b'17000000001000000010', 'port': 50, 'event': 1})
6503 DEBUG hub Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x7654c5b0>>: MsgHubAttachedIO({'payload': b'17000000001000000010', 'port': 50, 'event': 1})
6506 INFO hub Attached peripheral: LEDRGB on port 0x32
6517 DEBUG hub Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f00043b0115000200000002000000'
6518 DEBUG hub Decoded message: MsgHubAttachedIO({'payload': b'15000200000002000000', 'port': 59, 'event': 1})
6518 DEBUG hub Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x7654c5b0>>: MsgHubAttachedIO({'payload': b'15000200000002000000', 'port': 59, 'event': 1})
6521 INFO hub Attached peripheral: Current on port 0x3b
6533 DEBUG hub Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f00043c0114000200000002000000'
6533 DEBUG hub Decoded message: MsgHubAttachedIO({'payload': b'14000200000002000000', 'port': 60, 'event': 1})
6534 DEBUG hub Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x7654c5b0>>: MsgHubAttachedIO({'payload': b'14000200000002000000', 'port': 60, 'event': 1})
6537 INFO hub Attached peripheral: Voltage on port 0x3c
6555 DEBUG hub All devices are present: (LEDRGB on port 0x32, Current on port 0x3b, Voltage on port 0x3c)
6556 INFO demo Motors movement demo: timed
6557 INFO demo Speed level: 0.0%
6558 DEBUG hub Send message: MsgHubAction({'payload': b'', 'needs_reply': False, 'action': 2})
6559 DEBUG hub Waiting for sync reply to MsgHubAction({'payload': b'02', 'needs_reply': True, 'action': 2})...
6574 DEBUG comms-bleak Request: 14 ['0x4', '0x0', '0x2', '0x2']
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
self.run()
File "/usr/lib/python3.9/threading.py", line 892, in run
self._target(*self._args, **self._kwargs)
File "/home/lars/venv/lib/python3.9/site-packages/pylgbst/comms/cbleak.py", line 50, in <lambda>
self._connection_thread = threading.Thread(target=lambda: asyncio.run(self._bleak_thread()))
File "/usr/lib/python3.9/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
File "/usr/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
return future.result()
File "/home/lars/venv/lib/python3.9/site-packages/pylgbst/comms/cbleak.py", line 69, in _bleak_thread
await bleak.write(data[0], data[1])
File "/home/lars/venv/lib/python3.9/site-packages/pylgbst/comms/cbleak.py", line 180, in write
await self._client.write_gatt_char(MOVE_HUB_HW_UUID_CHAR, data)
File "/home/lars/venv/lib/python3.9/site-packages/bleak/__init__.py", line 593, in write_gatt_char
await self._backend.write_gatt_char(char_specifier, data, response)
File "/home/lars/venv/lib/python3.9/site-packages/bleak/backends/bluezdbus/client.py", line 801, in write_gatt_char
assert_reply(reply)
File "/home/lars/venv/lib/python3.9/site-packages/bleak/backends/bluezdbus/utils.py", line 20, in assert_reply
raise BleakDBusError(reply.error_name, reply.body)
bleak.exc.BleakDBusError: [org.bluez.Error.Failed] Not connected
Then pressing Ctrl-C I get:
^CTraceback (most recent call last):
File "/home/lars/./sporvogn.py", line 265, in <module>
demo(hub)
File "/home/lars/./sporvogn.py", line 177, in demo_all
demo_motors_timed(movehub)
File "/home/lars/./sporvogn.py", line 33, in demo_motors_timed
movehub.motor_A.timed(0.2, level)
AttributeError: 'SmartHub' object has no attribute 'motor_A'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/lars/./sporvogn.py", line 267, in <module>
hub.disconnect()
File "/home/lars/venv/lib/python3.9/site-packages/pylgbst/hub.py", line 190, in disconnect
self.send(MsgHubAction(MsgHubAction.DISCONNECT))
File "/home/lars/venv/lib/python3.9/site-packages/pylgbst/hub.py", line 96, in send
resp = self._sync_replies.get()
File "/usr/lib/python3.9/queue.py", line 171, in get
self.not_empty.wait()
File "/usr/lib/python3.9/threading.py", line 312, in wait
waiter.acquire()
KeyboardInterrupt
Interesting to learn that it complains about a motor that it cannot find - but only after i press Ctrl-C.
I have modified demo.py to create a SmartHub object instead of a MoveHub.
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larsskj
commented on July 28, 2024
Package Version
------------- -------
async-timeout 4.0.2
bleak 0.19.4
dbus-fast 1.74.0
pip 22.3.1
pkg_resources 0.0.0
pylgbst 1.2.2
setuptools 44.1.1
from pylgbst.
undera
commented on July 28, 2024
SmartHub object will have different capabilities, so you can't run demo with that type of hub. Demo script is designed to be used with MoveHub.
"All devices are present" in log is a very good sign, seems your SmartHub is up and ready. Now, you need to work with it properly.
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undera
commented on July 28, 2024
There are couple of important messages in the log:
6468 WARNING hub Have no dedicated class for peripheral type 0x2 (SYSTEM_TRAIN_MOTOR) on port 0x0
6487 WARNING hub Have no dedicated class for peripheral type 0x8 (LED_LIGHT) on port 0x1
Those mean that pylgbst does not have specialized handling for those devices. That's OK, you can still interact with them.
The interaction can happen on lower level, via message sending/receiving, or by optimistic peripheral enablement. We can even figure out the exact device capabilities and write nice peripheral handling for those.
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undera
commented on July 28, 2024
Here's a snippet of initializing your own objects bindings:
hub = SmartHub()
# create objects
motor = pylgbst.peripherals.EncodedMotor(hub, 0x0)
led = pylgbst.peripherals.LEDLight(hub, 0x1)
# optionally, assign it into hub class
hub.peripherals[0x0] = motor
hub.peripherals[0x1] = led
# also the shorthand ports
hub.port_A = motor
hub.port_B = led
# use it!
led.brightness = 1.0
motor.timed(1.0, 1.0)After that, your can do commands to those peripherals. The code can be arranged slightly differently. If EncodedMotor class does not work well, try using Motor class instead.
from pylgbst.
larsskj
commented on July 28, 2024
Back again after surgery - and on to the project!
Thank you very much for your example: But whilst it most likely will work with the current code on Github, it doesn't work with the latest release and hence it won't work with the latest package on PyPi. Your latest release is 1.2.2, that's the latest package on PyPi as well - but it doesn't include the peripheral LEDLight.
Perhaps time for a new release?
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larsskj
commented on July 28, 2024
Having removed the LED and concentrating on the motor for now, I do get a bit further, but your code snippet still fails:
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004010108000000000000000000'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'08000000000000000000', 'port': 1, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x764a7d00>>: MsgHubAttachedIO({'payload': b'08000000000000000000', 'port': 1, 'event': 1})
WARNING:hub:Have no dedicated class for peripheral type 0x8 (LED_LIGHT) on port 0x1
INFO:hub:Attached peripheral: Peripheral on port 0x1
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004320117000000001000000010'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'17000000001000000010', 'port': 50, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x764a7d00>>: MsgHubAttachedIO({'payload': b'17000000001000000010', 'port': 50, 'event': 1})
INFO:hub:Attached peripheral: LEDRGB on port 0x32
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f00043b0115000200000002000000'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'15000200000002000000', 'port': 59, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x764a7d00>>: MsgHubAttachedIO({'payload': b'15000200000002000000', 'port': 59, 'event': 1})
INFO:hub:Attached peripheral: Current on port 0x3b
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f00043c0114000200000002000000'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'14000200000002000000', 'port': 60, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x764a7d00>>: MsgHubAttachedIO({'payload': b'14000200000002000000', 'port': 60, 'event': 1})
INFO:hub:Attached peripheral: Voltage on port 0x3c
DEBUG:hub:All devices are present: (LEDRGB on port 0x32, Current on port 0x3b, Voltage on port 0x3c)
DEBUG:hub:Send message: MsgPortOutput({'payload': b'', 'needs_reply': False, 'port': 0, 'is_buffered': False, 'do_feedback': True, 'subcommand': 9, 'params': b'e80364647f03'})
DEBUG:hub:Waiting for sync reply to MsgPortOutput({'payload': b'001109e80364647f03', 'needs_reply': True, 'port': 0, 'is_buffered': False, 'do_feedback': True, 'subcommand': 9, 'params': b'e80364647f03'})...
DEBUG:comms-bleak:Request: 14 ['0xc', '0x0', '0x81', '0x0', '0x11', '0x9', '0xe8', '0x3', '0x64', '0x64', '0x7f', '0x3']
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
self.run()
File "/usr/lib/python3.9/threading.py", line 892, in run
self._target(*self._args, **self._kwargs)
File "/usr/local/lib/python3.9/dist-packages/pylgbst/comms/cbleak.py", line 50, in <lambda>
self._connection_thread = threading.Thread(target=lambda: asyncio.run(self._bleak_thread()))
File "/usr/lib/python3.9/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
File "/usr/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
return future.result()
File "/usr/local/lib/python3.9/dist-packages/pylgbst/comms/cbleak.py", line 69, in _bleak_thread
await bleak.write(data[0], data[1])
File "/usr/local/lib/python3.9/dist-packages/pylgbst/comms/cbleak.py", line 180, in write
await self._client.write_gatt_char(MOVE_HUB_HW_UUID_CHAR, data)
File "/usr/local/lib/python3.9/dist-packages/bleak/__init__.py", line 593, in write_gatt_char
await self._backend.write_gatt_char(char_specifier, data, response)
File "/usr/local/lib/python3.9/dist-packages/bleak/backends/bluezdbus/client.py", line 801, in write_gatt_char
assert_reply(reply)
File "/usr/local/lib/python3.9/dist-packages/bleak/backends/bluezdbus/utils.py", line 20, in assert_reply
raise BleakDBusError(reply.error_name, reply.body)
bleak.exc.BleakDBusError: [org.bluez.Error.Failed] Not connected
from pylgbst.
undera
commented on July 28, 2024
Hey, welcome back. Hope nothing serious with your surgery.
I would love to validate that the source code works before doing a release. It is easily possible by running pip install https://github.com/undera/pylgbst/archive/refs/heads/master.zip, which will install latest source code from GitHub.
Regarding "Not connected" error - it's something very specific to bluez, not something that we control on the pylgbst level. Their docs (https://bleak.readthedocs.io/en/latest/backends/linux.html?highlight=dbus) mention that https://github.com/Bluetooth-Devices/dbus-fast library is used. I would look if latest version of Bleak is installed and also that dbus-fast library.
From reading the log above, I don't see the motor is attached. It rather reports attaching the LED with INFO:hub:Attached peripheral: Peripheral on port 0x1. I see no corresponding message for the motor on port 0, thus I'd not expect it to function.
Let's continue troubleshooting it.
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larsskj
commented on July 28, 2024
No, nothing too bad about surgery - just a toe with osteoarthritis. But bad enough when you suffer from it.
Anyway, the motor is there - my snippet was just too short. The lines immediately before the ones above:
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Notifying': <dbus_fast.signature.Variant ('b', True)>}, []]
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04\x00\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00'))>}, []]
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x0', '0x1', '0x2', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0']
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004000102000000000000000000'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'02000000000000000000', 'port': 0, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x7656dd00>>: MsgHubAttachedIO({'payload': b'02000000000000000000', 'port': 0, 'event': 1})
WARNING:hub:Have no dedicated class for peripheral type 0x2 (SYSTEM_TRAIN_MOTOR) on port 0x0
INFO:hub:Attached peripheral: Peripheral on port 0x0
DEBUG:hub:Waiting for builtin devices to appear: (None, None, None)
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04\x01\x01\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00'))>}, []]
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x1', '0x1', '0x8', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0']
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x042\x01\x17\x00\x00\x00\x00\x10\x00\x00\x00\x10'))>}, []]
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x32', '0x1', '0x17', '0x0', '0x0', '0x0', '0x0', '0x10', '0x0', '0x0', '0x0', '0x10']
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04;\x01\x15\x00\x02\x00\x00\x00\x02\x00\x00\x00'))>}, []]
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x3b', '0x1', '0x15', '0x0', '0x2', '0x0', '0x0', '0x0', '0x2', '0x0', '0x0', '0x0']
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04<\x01\x14\x00\x02\x00\x00\x00\x02\x00\x00\x00'))>}, []]
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004010108000000000000000000'
Will try to install from Github instead of PyPi.
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larsskj
commented on July 28, 2024
Unfortunately, same result after installing latest master.
In general, everything should be up to date: The RPi was installed from scratch only three weeks ago, and I've uninstalled all Python packages related to this project for my venv, my personal home, and the overall root account. Sigh. There was a mixture of packages, there isn't anymore.
If everything else fails, we can try wiping out the RPi and start over again with a fresh Raspbian. This RPi will only be used for Lego - at least for now.
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larsskj
commented on July 28, 2024
But the debug log isn't completely the same after the upgrade:
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8): ['org.bluez.Device1', {'Appearance': <dbus_fast.signature.Variant ('q', 6144)>}, []]
DEBUG:hub:Waiting for builtin devices to appear: (None, None, None)
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Notifying': <dbus_fast.signature.Variant ('b', True)>}, []]
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04\x00\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00'))>}, []]
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x0', '0x1', '0x2', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0']
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04\x01\x01\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00'))>}, []]
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x1', '0x1', '0x8', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0', '0x0']
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x042\x01\x17\x00\x00\x00\x00\x10\x00\x00\x00\x10'))>}, []]
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x32', '0x1', '0x17', '0x0', '0x0', '0x0', '0x0', '0x10', '0x0', '0x0', '0x0', '0x10']
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04;\x01\x15\x00\x02\x00\x00\x00\x02\x00\x00\x00'))>}, []]
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004000102000000000000000000'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'02000000000000000000', 'port': 0, 'event': 1})
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x3b', '0x1', '0x15', '0x0', '0x2', '0x0', '0x0', '0x0', '0x2', '0x0', '0x0', '0x0']
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x765370b8>>: MsgHubAttachedIO({'payload': b'02000000000000000000', 'port': 0, 'event': 1})
INFO:hub:Attached peripheral SYSTEM_TRAIN_MOTOR => EncodedMotor on port 0x0
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004010108000000000000000000'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'08000000000000000000', 'port': 1, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x765370b8>>: MsgHubAttachedIO({'payload': b'08000000000000000000', 'port': 1, 'event': 1})
INFO:hub:Attached peripheral LED_LIGHT => LEDLight on port 0x1
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f0004320117000000001000000010'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'17000000001000000010', 'port': 50, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x765370b8>>: MsgHubAttachedIO({'payload': b'17000000001000000010', 'port': 50, 'event': 1})
INFO:hub:Attached peripheral RGB_LIGHT => LEDRGB on port 0x32
DEBUG:bleak.backends.bluezdbus.manager:received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_90_84_2B_C6_9A_F8/service000c/char000d): ['org.bluez.GattCharacteristic1', {'Value': <dbus_fast.signature.Variant ('ay', bytearray(b'\x0f\x00\x04<\x01\x14\x00\x02\x00\x00\x00\x02\x00\x00\x00'))>}, []]
DEBUG:comms-bleak:Response: 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic ['0xf', '0x0', '0x4', '0x3c', '0x1', '0x14', '0x0', '0x2', '0x0', '0x0', '0x0', '0x2', '0x0', '0x0', '0x0']
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f00043b0115000200000002000000'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'15000200000002000000', 'port': 59, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x765370b8>>: MsgHubAttachedIO({'payload': b'15000200000002000000', 'port': 59, 'event': 1})
INFO:hub:Attached peripheral CURRENT => Current on port 0x3b
DEBUG:hub:Notification on 00001624-1212-efde-1623-785feabcd123 (Handle: 13): LEGO Wireless Protocol v3 Hub Characteristic: b'0f00043c0114000200000002000000'
DEBUG:hub:Decoded message: MsgHubAttachedIO({'payload': b'14000200000002000000', 'port': 60, 'event': 1})
DEBUG:hub:Handling msg with <bound method SmartHub._handle_device_change of <pylgbst.hub.SmartHub object at 0x765370b8>>: MsgHubAttachedIO({'payload': b'14000200000002000000', 'port': 60, 'event': 1})
INFO:hub:Attached peripheral VOLTAGE => Voltage on port 0x3c
DEBUG:hub:All devices are present: (LEDRGB on port 0x32, Current on port 0x3b, Voltage on port 0x3c)
DEBUG:peripherals:Implied update is enabled=False
DEBUG:peripherals:Implied update delta=1
DEBUG:hub:Send message: MsgPortInputFmtSetupSingle({'payload': b'01000100000000', 'needs_reply': True, 'port': 1, 'mode': 0, 'updates_enabled': False, 'update_delta': 1})
DEBUG:hub:Waiting for sync reply to MsgPortInputFmtSetupSingle({'payload': b'01000100000000', 'needs_reply': True, 'port': 1, 'mode': 0, 'updates_enabled': False, 'update_delta': 1})...
DEBUG:comms-bleak:Request: 14 ['0xa', '0x0', '0x41', '0x1', '0x0', '0x1', '0x0', '0x0', '0x0', '0x0']
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
self.run()
File "/usr/lib/python3.9/threading.py", line 892, in run
self._target(*self._args, **self._kwargs)
File "/usr/local/lib/python3.9/dist-packages/pylgbst/comms/cbleak.py", line 51, in <lambda>
self._connection_thread = threading.Thread(target=lambda: asyncio.run(self._bleak_thread()))
File "/usr/lib/python3.9/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
File "/usr/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
return future.result()
File "/usr/local/lib/python3.9/dist-packages/pylgbst/comms/cbleak.py", line 74, in _bleak_thread
await bleak.write(data[0], data[1])
File "/usr/local/lib/python3.9/dist-packages/pylgbst/comms/cbleak.py", line 188, in write
await self._client.write_gatt_char(MOVE_HUB_HW_UUID_CHAR, data)
File "/usr/local/lib/python3.9/dist-packages/bleak/__init__.py", line 593, in write_gatt_char
await self._backend.write_gatt_char(char_specifier, data, response)
File "/usr/local/lib/python3.9/dist-packages/bleak/backends/bluezdbus/client.py", line 801, in write_gatt_char
assert_reply(reply)
File "/usr/local/lib/python3.9/dist-packages/bleak/backends/bluezdbus/utils.py", line 20, in assert_reply
raise BleakDBusError(reply.error_name, reply.body)
bleak.exc.BleakDBusError: [org.bluez.Error.Failed] Not connected
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larsskj
commented on July 28, 2024
Upgraded dbus-fast from 1.74.0 to 1.75.1 - no change.
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undera
commented on July 28, 2024
What is the exact Bleak version you have? I have no other ideas than asking on Bleak issue tracker for possible help.
The difficult part is the fact that the code works on other machines. It must be something with that specific combination of OS, hardware and software.
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larsskj
commented on July 28, 2024
I'm using Bleak version 0.19.5 - the latest and greatest just about two weeks old.
I'll try opening a ticket with the Bleak project as well.
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undera
commented on July 28, 2024
@larsskj Can you try patching the library right on RPi, by searching for file like find / -name "cbleak.py" and modifying the line according to @lorenzofelletti advice?
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larsskj
commented on July 28, 2024
Sorry for being away for a long time: I've been ill, and then we've had all the usual celebrations.
But here we go and I've found the time to test some of the suggestions: I first downloaded the latest BlueZ from kernel.org (version 5.66) and compiled it for my Raspberry Pi - a suggestion from the Bleak project. I then patched the Python code according to the suggestion as well - but all of it to no avail: Same disappointing result.
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undera
commented on July 28, 2024
@larsskj Did you try patching cbleak.py ?
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larsskj
commented on July 28, 2024
@undera Yes, that's what I meant by writing "I then patched the Python code according to the suggestion as well..."
Did you see the comment from dlech in the Bleak issue about a bug in the Lego implementation? And that the simple patch of cbleak.py wouldn't be enough?
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undera
commented on July 28, 2024
So, looks like we are unable to find the solution for this particular problem. Something is broken there in BLE communications.
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cuernodegazpacho
commented on July 28, 2024
@larsskj we were able to include support for the train motor. It is available in the latest master.
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larsskj
commented on July 28, 2024
This sounds amazing: I'll give it a try in the weekend.
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Related Issues (20)
- Lego Boost reconnection issue HOT 1
- LEDRGB: Current color can't be obtained/notified from the hub HOT 4
- Cannot connect to 88015 hub HOT 1
- Error on MacOS HOT 5
- 'MoveHub' object has no attribute 'connection' HOT 2
- Any plans for adding other hubs, maybe Mindstorms 515151? HOT 5
- [motors]Is there a way to ? HOT 1
- Technic Hub Port AB doesnt work HOT 16
- Connecting to WeDo SmartHub: no characteristic found HOT 7
- Blue Tooth Connection HOT 6
- How to get Sound Files with Lego Boost app? HOT 1
- Calling hub methods from callback functions blocks further operations HOT 6
- Crashes from time to time calling bluepy function HOT 14
- How to control a DC (train) motor ? HOT 40
- Support for Powered Up Remote Handset (Lego 88010) HOT 6
- Is pylgbst thread-safe? HOT 2
- To bleak or not to bleak...? HOT 3
- AttributeError: 'NoneType' object has no attribute 'timed' HOT 3
- Proper way to detect if motor is stuck during its move? HOT 3
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