Open ArthurKun21 opened 5 years ago
ArthurKun21
commented
5 years ago My goal is to make the program to connect to as many sensors as in the range of bluetooth and loop it back, so the program is not dedicated to connection to only one sensor.
To simulate the connection to as many sensors while having only one sensor, I did make the program connect and then disconnect.
If you have somehow suggestions or recommendation on how to accomplished this. I would appreciate it.
ArthurKun21
commented
5 years ago Traceback (most recent call last): File "/home/pi/BlueSTSDK_Python/blue_st_examples/pm3.py", line 329, in
main(sys.argv[1:]) File "/home/pi/BlueSTSDK_Python/blue_st_examples/pm3.py", line 290, in main if device.wait_for_notifications(0.05): File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 1019, in wait_for_notifications return self.waitForNotifications(timeout_s) File "/usr/local/lib/python3.7/dist-packages/bluepy/btle.py", line 560, in waitForNotifications resp = self._getResp(['ntfy','ind'], timeout) File "/usr/local/lib/python3.7/dist-packages/bluepy/btle.py", line 416, in _getResp self.delegate.handleNotification(hnd, data) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 1119, in handleNotification self._node._update_features(char_handle, data, True) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 359, in _update_features offset += feature.update(timestamp, data, offset, notify_update) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/feature.py", line 330, in update self._notify_update(sample) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/feature.py", line 274, in _notify_update self._thread_pool.submit(listener.on_update(self, sample)) File "/usr/lib/python3.7/concurrent/futures/thread.py", line 160, in submit self._adjust_thread_count() File "/usr/lib/python3.7/concurrent/futures/thread.py", line 181, in _adjust_thread_count t.start() File "/usr/lib/python3.7/threading.py", line 847, in start _start_new_thread(self._bootstrap, ()) RuntimeError: can't start new thread Device PM1V201 disconnected. Exception ignored in: <function Peripheral.del at 0xb65df780> Traceback (most recent call last): File "/usr/local/lib/python3.7/dist-packages/bluepy/btle.py", line 630, in del File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 555, in disconnect File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 398, in _update_node_status File "/usr/lib/python3.7/concurrent/futures/thread.py", line 151, in submit RuntimeError: cannot schedule new futures after shutdown
I got another Error log
davidroid
commented
5 years ago It seems an error due to the fact that you reached the maximum number of threads allowed by your system resources.
Davide
Il giorno mer 16 ott 2019 alle ore 08:14 Rulerkun notifications@github.com ha scritto:
Traceback (most recent call last): File "/home/pi/BlueSTSDK_Python/blue_st_examples/pm3.py", line 329, in main(sys.argv[1:]) File "/home/pi/BlueSTSDK_Python/blue_st_examples/pm3.py", line 273, in main device.disable_notifications(feature) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 986, in disable_notifications self.set_notification_status(characteristic, False) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 942, in set_notification_status self._NOTIFICATION_ON if status else self._NOTIFICATION_OFF, True) File "/usr/local/lib/python3.7/dist-packages/bluepy/btle.py", line 543, in writeCharacteristic return self._getResp('wr') File "/usr/local/lib/python3.7/dist-packages/bluepy/btle.py", line 416, in _getResp self.delegate.handleNotification(hnd, data) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 1119, in handleNotification self._node._update_features(char_handle, data, True) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 359, in _update_features offset += feature.update(timestamp, data, offset, notify_update) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/feature.py", line 330, in update self._notify_update(sample) File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/feature.py", line 274, in _notify_update self._thread_pool.submit(listener.on_update(self, sample)) File "/usr/lib/python3.7/concurrent/futures/thread.py", line 160, in submit self._adjust_thread_count() File "/usr/lib/python3.7/concurrent/futures/thread.py", line 181, in _adjust_thread_count t.start() File "/usr/lib/python3.7/threading.py", line 847, in start _start_new_thread(self._bootstrap, ()) RuntimeError: can't start new thread Device PM1V201 disconnected unexpectedly.
Exiting...
Exception ignored in: <function Peripheral.del at 0xb6606780> Traceback (most recent call last): File "/usr/local/lib/python3.7/dist-packages/bluepy/btle.py", line 630, in del File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 559, in disconnect File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 450, in _unexpected_disconnect File "/usr/local/lib/python3.7/dist-packages/blue_st_sdk/node.py", line 398, in _update_node_status File "/home/pi/BlueSTSDK_Python/blue_st_examples/sample3.py", line 93, in on_disconnect
I was doing some testing where i keep connecting and then disconnecting the program to only one sensor, and somehow i encountered this.
My Program is mostly the same as example_ble_1.py https://github.com/STMicroelectronics/BlueSTSDK_Python/blob/master/blue_st_examples/example_ble_1.py with some less modification with removing the choice part and replacing it with loop of selecting all of them.
I also change the number of notifications to 1, so that the program will only connect to each feature once ( with the exception of the temperature having two temperature)
If my count is right, i have done more or less 70 automated connection and then disconnection.
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ArthurKun21
commented
5 years ago try:
# Creating Bluetooth Manager.
manager = Manager.instance()
manager_listener = MyManagerListener()
manager.add_listener(manager_listener)
while True:
# Synchronous discovery of Bluetooth devices.
print('Scanning Bluetooth devices...\n')
manager.discover(SCANNING_TIME_s)
# Getting discovered devices.
discovered_devices = manager.get_nodes()
# Listing discovered devices.
if not discovered_devices:
print('No Bluetooth devices found. Exiting...\n')
#sys.exit(0)
else:
print('Available Bluetooth devices:')
i = 1
for device in discovered_devices:
print('%d) %s: [%s]' % (i, device.get_name(), device.get_tag()))
i += 1
for device in discovered_devices:
node_listener = MyNodeListener()
device.add_listener(node_listener)
# Connecting to the device.
print('Connecting to %s...' % (device.get_name()))
if not device.connect():
print('Connection failed.\n')
continue
print(datetimetext)
while True:
# Getting features.
features = device.get_features()
print('\nFeatures:')
i = 1
for feature in features:
if isinstance(feature, FeatureAudioADPCM):
audio_feature = feature
print('%d,%d) %s' % (i,i+1, "Audio & Sync"))
i+=1
elif isinstance(feature, FeatureAudioADPCMSync):
audio_sync_feature = feature
else:
print('%d) %s' % (i, feature.get_name()))
i+=1
if feature.get_name() == "Temperature" or feature.get_name() == "Humidity" or feature.get_name() == "Pressure" or feature.get_name() == "Magnetometer" or feature.get_name() == "Gyroscope" or feature.get_name() == "Accelerometer":
# Enabling notifications.
feature_listener = MyFeatureListener()
feature.add_listener(feature_listener)
device.enable_notifications(feature)
# Getting notifications.
notifications = 0
while notifications < NOTIFICATIONS:
if device.wait_for_notifications(0.05):
notifications += 1
# Disabling notifications.
device.disable_notifications(feature)
feature.remove_listener(feature_listener)
break
# Disconnecting from the device.
print('\nDisconnecting from %s...' % (device.get_name()))
device.remove_listener(node_listener)
if not device.disconnect():
print('Disconnection failed.\n')
continue
# Resetting discovery.
manager.reset_discovery()
except KeyboardInterrupt:
try:
# Exiting.
print('\nExiting...\n')
sys.exit(0)
except SystemExit:
os._exit(0)`It seems an error due to the fact that you reached the maximum number of threads allowed by your system resources.
How will I be able to free some old threads so I could create a new ones?
ArthurKun21
commented
5 years ago Hi @davidroid and @mridup
Can i know where part of the program I need to check so I can check whether the Thread previously created was destroyed/Killed when the Feature/Node/Manager was remove from its Listener?
ArthurKun21
commented
5 years ago Hi @davidroid
I did some testing on my end.
Test 1 I increased the number of NOTIFICATIONS to 1000 and get values from Temperature feature. Getting 1000 temperature values, so far i did not get error
notifications = 0
NOTIFICATIONS =100
while notifications < NOTIFICATIONS:
if device.wait_for_notifications(0.05):
notifications += 1Test 2 return the number of NOTIFICATIONS to 1 set a 100 loop on getting features [Temperature, Humidity, Pressure, Magnetometer, Gyroscope, Accelerometer] and so far i did not get the RuntimeError: can't start new thread
num=0
max =100
while num< max:
for feature in features:
if feature.get_name() == "Temperature" or feature.get_name() == "Humidity" or feature.get_name() == "Pressure" or feature.get_name() == "Magnetometer" or feature.get_name() == "Gyroscope" or feature.get_name() == "Accelerometer":
# Enabling notifications.
feature_listener = MyFeatureListener()
feature.add_listener(feature_listener)
device.enable_notifications(feature)
# Getting notifications.
notifications = 0
while notifications < NOTIFICATIONS:
if device.wait_for_notifications(0.05):
notifications += 1
# Disabling notifications.
device.disable_notifications(feature)
feature.remove_listener(feature_listener)
num+=1Test 3 This time i did a 100 loop of device connect, get the features data and disconnect. and did not encounter the runtime error
num=0
max =100
while num < max:
for device in discovered_devices:
node_listener = MyNodeListener()
device.add_listener(node_listener)
# Connecting to the device.
print('Connecting to %s...' % (device.get_name()))
if not device.connect():
print('Connection failed.\n')
continue
# Getting features.
features = device.get_features()
print('Features:')
for feature in features:
if feature.get_name() == "Temperature" or feature.get_name() == "Humidity" or feature.get_name() == "Pressure" or feature.get_name() == "Magnetometer" or feature.get_name() == "Gyroscope" or feature.get_name() == "Accelerometer":
# Enabling notifications.
feature_listener = MyFeatureListener()
feature.add_listener(feature_listener)
device.enable_notifications(feature)
# Getting notifications.
notifications = 0
while notifications < NOTIFICATIONS:
if device.wait_for_notifications(0.05):
notifications += 1
# Disabling notifications.
device.disable_notifications(feature)
feature.remove_listener(feature_listener)
# Disconnecting from the device.
print('Disconnecting from %s...' % (device.get_name()))
device.remove_listener(node_listener)
if not device.disconnect():
print('Disconnection failed.\n')
continue
num +=1Could there be a thread in manager class that is not closed properly when rediscovering nodes?
I was doing some testing where i keep connecting and then disconnecting the program to only one sensor, and somehow i encountered this.
My Program is mostly the same as example_ble_1.py with some less modification with removing the choice part and replacing it with loop of selecting all of them.
I also change the number of notifications to 1, so that the program will only connect to each feature once ( with the exception of the temperature having two temperature)
If my count is right, i have done more or less 70 automated connection and then disconnection.