# 1. Create and activate virtual environment
py -3 -m venv .venv
.venv\Scripts\activate

# 2. Install ELM327-Emulator
pip install ELM327-Emulator --no-cache-dir

# 3. Run the emulator on any port
python -m elm -p COM9 -s car --baudrate 38400

> python -m elm -p COM9 -s car --baudrate 38400
2025-09-14 15:26:51,645 - root - INFO -

ELM327 OBD-II adapter emulator v3.0.4 started on serial COM port "COM9".

Emulator scenario switched to 'car'
Welcome to the ELM327 OBD-II adapter emulator.
ELM327-emulator is running on serial COM port "COM9" with baud rate 38400.
Type help or ? to list commands.

CMD>

> python -m elm -p COM9 -s car --baudrate 38400
2025-09-14 15:44:51,700 - root - INFO - 

ELM327 OBD-II adapter emulator v3.0.4 started on serial COM port "COM9".

Emulator scenario switched to 'car'
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Users\username\Desktop\playground\.venv\Lib\site-packages\elm\__main__.py", line 18, in <module>   
    main()
    ~~~~^^
  File "C:\Users\username\Desktop\playground\.venv\Lib\site-packages\elm\interpreter.py", line 1280, in main  
    p_elm.cmdloop_with_keyboard_interrupt(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        'Welcome to the ELM327 OBD-II adapter emulator.\n'
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        'ELM327-emulator is running on %s\n'
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        'Type help or ? to list commands.\n' % pty_name
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "C:\Users\username\Desktop\playground\.venv\Lib\site-packages\elm\interpreter.py", line 951, in cmdloop_with_keyboard_interrupt
    self.cmdloop(arg)
    ~~~~~~~~~~~~^^^^^
  File "C:\Program Files\Python313\Lib\cmd.py", line 111, in cmdloop
    if readline.backend == "editline":
       ^^^^^^^^^^^^^^^^
AttributeError: module 'readline' has no attribute 'backend'

> pip freeze
ELM327-emulator==3.0.4
flexcache==0.3
flexparser==0.4
lockfile==0.12.2
obd==0.7.3
Pint==0.24.4
platformdirs==4.4.0
pyreadline3==3.5.4
pyserial==3.5
python-daemon==3.1.2
PyYAML==6.0.2
typing_extensions==4.15.0

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Users\username\Desktop\playground\.venv\Lib\site-packages\elm\__main__.py", line 18, in <module>   
    main()
    ~~~~^^
  File "C:\Users\username\Desktop\playground\.venv\Lib\site-packages\elm\interpreter.py", line 1280, in main  
    p_elm.cmdloop_with_keyboard_interrupt(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        'Welcome to the ELM327 OBD-II adapter emulator.\n'
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        'ELM327-emulator is running on %s\n'
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        'Type help or ? to list commands.\n' % pty_name
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "C:\Users\username\Desktop\playground\.venv\Lib\site-packages\elm\interpreter.py", line 951, in cmdloop_with_keyboard_interrupt
    self.cmdloop(arg)
    ~~~~~~~~~~~~^^^^^
  File "C:\Program Files\Python313\Lib\cmd.py", line 111, in cmdloop
    if readline.backend == "editline":
       ^^^^^^^^^^^^^^^^
AttributeError: module 'readline' has no attribute 'backend'