Davinci Jr/Mini emulating the NFC reader and tag on demand UID cycling (Page 3 of 7)

OK, I'm completely new to Python so am probably doing a really silly thing - but I can't get the instructions on
https://github.com/rhysbryant/readerEmulatorClient
to work....

C:\Users\Charlie\Desktop\readerEmulatorClient>"C:\Program Files (x86)\Python\python.exe" readerClient.py --readerPath=COM1 --file=pageData.txt --cmd=writeToFile
Traceback (most recent call last):
  File "readerClient.py", line 22, in <module>
    import readerSerialConnection
  File "C:\Users\Charlie\Desktop\readerEmulatorClient\readerSerialConnection.py", line 22, in <module>
    import serial
ModuleNotFoundError: No module named 'serial'

Python is installed in the path specified.
Module has been changed to COM1

**EDIT***
OK, installed pyserial using PIP...

now get..

Traceback (most recent call last):
  File "readerClient.py", line 161, in <module>
    main()
  File "readerClient.py", line 153, in main
    c.connect(args.readerPath)
  File "C:\Users\Charlie\Desktop\readerEmulatorClient\readerSerialConnection.py", line 27, in connect
    self.serial = serial.Serial(comport)
  File "C:\Program Files (x86)\Python\lib\site-packages\serial\serialwin32.py", line 31, in __init__
    super(Serial, self).__init__(*args, **kwargs)
  File "C:\Program Files (x86)\Python\lib\site-packages\serial\serialutil.py", line 240, in __init__
    self.open()
  File "C:\Program Files (x86)\Python\lib\site-packages\serial\serialwin32.py", line 62, in open
    raise SerialException("could not open port {!r}: {!r}".format(self.portstr, ctypes.WinError()))
serial.serialutil.SerialException: could not open port 'COM1': FileNotFoundError(2, 'The system cannot find the file specified.', None, 2)

** EDIT 2 **
Ran as administrator
Getting better

Writing
No output..  but an empty file

Reading

C:\Users\Charlie\Desktop\readerEmulatorClient>"C:\Program Files (x86)\Python\python.exe" readerClient.py --readerPath="COM1" --file=pageData.txt --cmd=readFromFile
Traceback (most recent call last):
  File "readerClient.py", line 161, in <module>
    main()
  File "readerClient.py", line 158, in main
    reader.writePagesFromFile(args.file)
  File "readerClient.py", line 82, in writePagesFromFile
    line2 = line.rstrip('\n')
TypeError: a bytes-like object is required, not 'str'

What format must the input file be in?

The earlier print worked fine, until it was about to finish.
The printer then beeped and displayed “spool error”.
Powered printer off/on and then wouldn’t print any more due to “unidentified spool”
Haven’t had time to dump off the stored card details yet.

cgrillo wrote:

The earlier print worked fine, until it was about to finish.
The printer then beeped and displayed “spool error”.
Powered printer off/on and then wouldn’t print any more due to “unidentified spool”
Haven’t had time to dump off the stored card details yet.

I haven't seen the  “spool error” under normal operation maybe there was a loose connection.

“unidentified spool” I have seen this happen after disconnecting and reconnecting power recently I'm working on a firmware update that I'll release sometime this month. that verifies the data was correctly written to the Emulator's EEPROM on tag data upload. where as the current verification process only checks it was uploaded to RAM correctly.

cgrillo wrote:

I dumped the data from my unit after it failed and I had the same issue.

My Page 20 value is now "D11B0000" (7.121m) was originally "E0930400" (300m) - I didn't use that much filament!!
Pages 21-23 values had also changed - but this is expected.

What concerns me is that the Password and PACK code had also changed!

Do you know if anything external happened to you emulator?  Like I know I had 2 power outages ( one accidental i.e. neighborhood power outage, the other a power off / on to reset my RPi )

boards are now back in stock!
the new board version does support being powered by the printer (no longer requires constant USB Power).

I'm trialing the use of a different online store platform for selling the current batch (link in first post in this thread).

rhys wrote:

boards are now back in stock!
the new board version does support being powered by the printer (no longer requires constant USB Power).

I'm trialing the use of a different online store platform for selling the current batch (link in first post in this thread).

Is there an easy "hack" to the v1 boards to nick the power supplied by the printer and channel it to the Vin?

rhys wrote:

cgrillo wrote:

Is there an easy "hack" to the v1 boards to nick the power supplied by the printer and channel it to the Vin?

the same functionality could not easily be achieved on the existing v1 boards.

ah bugger