One of the possible solution maybe to ignore the undesired COM ports. Use this in MATLAB to query the Available COM ports with there full-name and COM number. And you can then implement some sort of filter to ignore the COM's with 'Standard Serial Over Bluetooth link'. Works on windows os only. For linux you may need to use different shell command.
[status, cmdout] = system('powershell "Get-WmiObject -Query ''SELECT * FROM Win32_PnPEntity WHERE ConfigManagerErrorCode = 0 AND PNPClass = ''''Ports'''''' | Select-Object Name, DeviceID"');
disp(cmdout)
Output
Name DeviceID
---- --------
USB-SERIAL CH340 (COM14) USB\VID_1226&PID_7523\6&232D61C&0&3
Communications Port (COM1) ACPI\PNP0501\2
USB-SERIAL CH340 (COM7) USB\VID_1A2&PID_7523\7&2FB24610&2
A initial Idea:
% Execute PowerShell command to get COM port info
[status, cmdout] = system('powershell "Get-WmiObject -Query ''SELECT * FROM Win32_PnPEntity WHERE ConfigManagerErrorCode = 0'' | Where-Object { $_.Name -match ''(COM\d+)'' } | Select-Object Name"');
% Check for successful command execution
if status == 0
% Split the output into lines
lines = strsplit(cmdout, '\n');
% Initialize an array to hold the filtered COM port names
filteredPorts = {};
% Loop through each line of the output
for i = 1:length(lines)
% Check if the line contains a COM port and does not contain the Bluetooth link text
if contains(lines{i}, 'COM') && ~contains(lines{i}, 'Standard Serial over Bluetooth link')
% Extract the COM port name
portName = strtrim(lines{i});
% Add to the list of filtered ports
filteredPorts{end+1} = portName; % Store the name
end
end
% Display the filtered COM ports
disp('Filtered COM Ports:')
disp(filteredPorts)
else
disp('Failed to query COM ports.')
end
Output
Filtered COM Ports:
{'USB-SERIAL CH340 (COM14)'} {'Communications Port (COM1)'} {'USB-SERIAL CH340 (COM7)'}
To return only COMs:
% Execute PowerShell command to get COM port info
[status, cmdout] = system('powershell -Command "Get-PnpDevice -PresentOnly | Where-Object { $_.Class -eq ''Ports'' } | Select-Object Name, DeviceID | Format-Table -HideTableHeaders | Out-String -Width 4096"');
% Check for successful command execution
if status == 0
% Split the output into lines
lines = strsplit(cmdout, '\n');
% Initialize a cell array to hold the COM port names
comPorts = {};
% Loop through each line of the output
for i = 1:length(lines)
line = strtrim(lines{i});
% Skip empty lines
if isempty(line)
continue;
end
% Check if the line contains 'COM' and does not contain 'Standard Serial over Bluetooth link'
if contains(line, 'COM') && ~contains(line, 'Standard Serial over Bluetooth link')
% Extract the COM port name
tokens = regexp(line, 'COM\d+', 'match');
if ~isempty(tokens)
comPorts{end+1} = tokens{1}; % Add the COM port name to the cell array
end
end
end
% Display the filtered COM ports
disp('Filtered COM Ports:');
disp(comPorts);
else
disp('Failed to query COM ports.');
end
Output:
Filtered COM Ports:
{'COM14'} {'COM1'} {'COM7'}
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If you find the solution helpful and it resolves your issue, it would be greatly appreciated if you could accept the answer. Also, leaving an upvote and a comment are also wonderful ways to provide feedback.
It's important to note that the advice and code are based on limited information and meant for educational purposes. Users should verify and adapt the code to their specific needs, ensuring compatibility and adherence to ethical standards.
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