Thank you for this project. Nice and easy as a first project with Omega 2.
In my case there is a systematic error in the position returned by "ubus -S call gps info". Not a major one; just a few miles away but it is annoying for a device that should have an accuracy of a few meters
I looked at the source code on github and identified a bug in ugps when the NMEA data is converted.
I was wondering if you ever checked the accuracy of your results, for example by plotting the latitude and longitude on Google Map?
Did you find a fix?