Adding support for GQ RadonPro

[neofob]

This equipment has both Radon and Geiger counter.

Error message from current pygmc v0.14.1

Unable to auto assign Device=RadonProRe2.02
Please open an issue https://github.com/Wikilicious/pygmc/issues
Traceback (most recent call last):
  File "/usr/local/bin/gmc-service.py", line 19, in <module>
    gmc = pygmc.connect()
          ^^^^^^^^^^^^^^^
  File "/home/ubuntu/venv/lib/python3.12/site-packages/pygmc/__init__.py", line 92, in connect
    gc = device_class(
         ^^^^^^^^^^^^^
TypeError: 'NoneType' object is not callable

The device shows up as /dev/ttyUSB0. Here is the snippet from dmesg

[2328755.239850] usb 3-1.3: new full-speed USB device number 101 using xhci_hcd
[2328755.326347] usb 3-1.3: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64
[2328755.326357] usb 3-1.3: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[2328755.326360] usb 3-1.3: Product: USB Serial
[2328755.336999] ch341 3-1.3:1.0: ch341-uart converter detected
[2328755.337993] usb 3-1.3: ch341-uart converter now attached to ttyUSB0

Product webpage

• https://gqelectronicsllc.com/comersus/store/comersus_viewItem.asp?idProduct=5868

[Wikilicious]

Hi, thanks for the traceback.
I found the documentation for the RadonPRO https://www.gqelectronicsllc.com/GQ_Radon_Dedector_User_Guide.pdf
It says it uses the GQ-RFC2401 communication protocol; however, it seems they forgot to publish it. I need it to add support.
I'll email them and post on their forum. For now, we wait.

[Wikilicious]

I got an email reply... reasonably fast.

<GETVER>>
<GETSERIAL>>
<FACTORYRESET>>
<GETCPM>>
<GETPCI1HOUR>>
<GETPCI1DAY>>
<GETPCI1WEEK>>
<GETPCILONGTERM>>
<REBOOT>>
<SETDATETIME???????????>> same as other
<WIFION>>
<WIFIOFF>>
<AT>>
<GETCFG>>
<SETSSID>>
<SETWIFIPW>>
<SETURL>>
<SETUSERID>>
<SETCOUNTERID>>
<SETPERIOD>>

I know how to implement many of these commands - yet, I still need more info e.g. response structure

[Wikilicious]

I have poked the email chain... latest one being April 15th...
I did get a reply... but the reply was "no update yet"