hi, im really not experienced im a little stuck on the plx-daq to my excel part when i try to connect them this happens "Com Error: Error(2): CommOpen(Create File): The System cannot find the file specified. Aborting!" were using an RFID card for this its for our capstone project we really need help because its an rfid attendance system hope you can help...
Hi @randomquest. I don't have any experience using PLX-DAQ, but my interpretation of this error is that it is not able to find the serial port. If so, it might seem strange that the error message mentions a "file", but ports are treated like a file in some contexts, so that doesn't necessarily contradict my hypothesis.
Double check that you have the COM port number of the Uno board's serial port selected in the "Port" field of the PLX-DAQ settings.
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