![]() ![]() My arduino IDE and the board don’t want to cooperate. I managed to solve some riddles myself with existing knowledge base (stuck screen brightness or vpn) and now I have a bigger problem. Just started to migrate from msw7 to manjaro and slowly rebuilding my os toolkit. Using python 3.8.It’s my first post here, so here’s a word about me. I got Win10 64bit on both devices (the notebook where everything is fine and the desktop where it messes up) : could not open port 'COM6': PermissionError(13, 'Access denied', None, 5) ('Connected to: ".format(self.portstr, ctypes.WinError())) Logger.exception('Could not connect serial device!') If comport.pid = self.pid and comport.vid = self.vid: # if pid and vid is matching port is found # list all comports that are connected and iterate them Using the pyserial library this function opens up a connection to a serial port using the vid and pid toīool: The return value. ![]() _slots_ = ĭef _init_(self, vid, pid, line_terminator, name='scanner'): Name (str, optional): name for the thread. Line_terminator: terminator the scanner uses for messages. Received messages are stored to the backlog fifo queue in order to guarantee a thread safe It implements so that it is not blocking any other functionality due to listening to This class is capable to open a serial port based on a vendors and product id of the scannerĭevice. Import _ports as list_portsįormatter = logging.Formatter('%(asctime)s: %(levelname)s: %(name)s.%(funcName)s: %(message)s\n')įile_handler = logging.FileHandler('broker.log') Here is the python file of the EANScanner class (hope that is not that kind of a mess for you, I am open to any advice) from time import sleepįrom serial import Serial, SerialException This is pretty annoying because I also wanted to have the ability to reconnect for my class if the scanner is unplugged and plugged back in. Once I uninstall the device in devicemanager and restart I can connect to the comport of the scanner as long as I do not unplug it and plug it back in, then I need to do the procedure again. I always get a PermissionError(13, 'Access denied', None, 5) when I try to connect to the comport of the scanner. ![]() So far I wrote myself a EANScanner class in order to read the EANs from the serial port and everything was fine.īut now I wanted to continue on my desktop and ran into strange problems (at least strange for me) I wanted to create a manager for the frige and therefor I wanted to use a EAN Scanner to scan the items. ![]()
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