Hello Yann!
First of all, thank you for your plugin!
I have a similar issue, the plugin is giving me what seems to be the correct data string in the GPS data but doesn't it at the element level (latitude, longitude,...)
I think it's related to the fact that the text string that the GPS is giving starts with $GPGLL and not $GNRMC...
Is there a way to make it work? I'm using a USB GPS u-blox 7 and I don't think your other plugin (the TCP one) would be suitable.
Thank you!
Let me know if you have any other questions!
Have a nice day!