gnbl
commented
4 years ago So I've just seen https://virantha.github.io/bricknil/readme.html#installation and https://virantha.github.io/bricknil/pi_setup.html
I've reinstalled bricknil with sudo and the above error does not occur. However, nothing happens when I spin the front wheels manually.
pi@raspberrypi:~ $ sudo python3 brick.py
started thread for curio
inside curio run loop
INFO:BLE Event Q.0:using bleak
INFO:BLE Event Q.0:Starting scan for UART 00001623-1212-efde-1623-785feabcd123
INFO:BLE Event Q.0:Looking for first matching hub
Awaiting on bleak discover
Done Awaiting on bleak discover
INFO:BLE Event Q.0:checking manufacturer ID for device named Train Base for Train Base
INFO:BLE Event Q.0:found device Train Base
INFO:BLE Event Q.0:Device advertised: {'00001624-1212-efde-1623-785feabcd123': {'UUID': '00001624-1212-efde-1623-785feabcd123', 'Service': '/org/bluez/hci0/dev_18_04_ED_EB_FB_BB/service0009', 'Value': [10, 0, 70, 19, 0, 2, 140, 0, 0, 0], 'Notifying': False, 'Flags': ['write-without-response', 'write', 'notify'], 'WriteAcquired': False, 'NotifyAcquired': False, 'Path': '/org/bluez/hci0/dev_xx_xx_xx_xx_xx_xx/service0009/char000a'}}
INFO:BLE Event Q.0:Connected to device Train Base:xx:xx:xx:xx:xx:xx
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:speed_sensor.3:ASSIGNING PORT 19 on speed_sensor
INFO:train.5:Movement detected: starting...
INFO:train.5:Speed sensor changed speed: 133
INFO:train.5:Speed sensor changed speed: 134
INFO:train.5:Speed sensor changed speed: 135
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Speed sensor changed speed: 0
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
^CTraceback (most recent call last):
File "brick.py", line 70, in <module>
start(system)
File "/usr/local/lib/python3.7/dist-packages/bricknil/bricknil.py", line 214, in start
ble.run()
File "/usr/local/lib/python3.7/dist-packages/bricknil/bleak_interface.py", line 52, in run
self.loop.run_until_complete(self.asyncio_loop())
File "/usr/lib/python3.7/asyncio/base_events.py", line 571, in run_until_complete
self.run_forever()
File "/usr/lib/python3.7/asyncio/base_events.py", line 539, in run_forever
self._run_once()
File "/usr/lib/python3.7/asyncio/base_events.py", line 1739, in _run_once
event_list = self._selector.select(timeout)
File "/usr/lib/python3.7/selectors.py", line 468, in select
fd_event_list = self._selector.poll(timeout, max_ev)
KeyboardInterrupt
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
^CException ignored in: <module 'threading' from '/usr/lib/python3.7/threading.py'>
Traceback (most recent call last):
File "/usr/lib/python3.7/threading.py", line 1281, in _shutdown
t.join()
File "/usr/lib/python3.7/threading.py", line 1032, in join
self._wait_for_tstate_lock()
File "/usr/lib/python3.7/threading.py", line 1048, in _wait_for_tstate_lock
elif lock.acquire(block, timeout):
KeyboardInterrupt
The sample code says the hub button needs to be pushed, which turns off the train.
INFO:BLE Event Q.0:Connected to device Train Base:xx:xx:xx:xx:xx:xx
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:vision_sensor.1:ASSIGNING PORT 18 on vision_sensor
INFO:speed_sensor.3:ASSIGNING PORT 19 on speed_sensor
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
INFO:train.5:Waiting for peripheral motor to attach to a port
Ok so I got it to work once by connecting, shutting down the train when connected, starting the train again. But I can't reproduce.
DavidPowell
Summary:
On Windows 10 with the latest Python 3.8.1,
pip3 install bricknil(following https://virantha.github.io/bricknil/readme.html#installation) fails when installingpythonnetdue to missing dependencywheel.pip3 install wheelresolves that, but building fails due toModuleNotFoundError: No module named 'pycparser'.pip3 install pycparsersolves that, but building fails.Digging deeper:
https://pypi.org/project/pythonnet/#files last wheel release from mid 2019, so Python 3.7 needed, e.g.
https://www.python.org/ftp/python/3.7.6/python-3.7.6.exe
works.
Then, running https://virantha.github.io/bricknil/readme.html#using-the-duplo-train-and-playing-sounds as brick.py:
Google finds this issue and solution: https://github.com/hbldh/bleak/issues/53#issuecomment-473875499
i.e.
%localappdata%\Programs\Python\Python37-32\Scripts\bleak-lescanruns without error, albeit not giving any output.The bricknil example does not find anything (Android nrF Connect has no issue connecting to the train) and "crashes":
which I cannot quit (CTRL+C or anything else).
So my Bluetooth 4.0 dongle (CSR) and Windows likely are the actual problem.
https://www.lego.com/en-us/service/device-guide/duplo-connected-train
Although BLE is part of Bluetooth since 4.0!?
I'll try this on Linux.
Same error on Timeout in Ubuntu:
error.txt
Issue with bluetooth adapter ("dongle")?
So it seems it's only a Bluetooth 2.0 Dongle and does not support BLE... Argh!
Trying on RPi Zero W with current Raspbian Lite:
Following
https://raspberrypi.stackexchange.com/questions/71333/bluetooth-does-not-work-with-raspbian-stretch-and-raspberry-pi-3
seems to fix the access problem, but there is another Exception: