That MicroPython tutorial is the most complete example right now for doing a full GPS tracker with Adafruit IO on Walter. As far as I know, there isn’t an Arduino version that goes that far yet.
The Arduino examples on Walter’s GitHub mostly just show how to get GNSS data and basic output. You could definitely build the same thing in Arduino by adding MQTT and pushing the data to Adafruit IO yourself, but it takes quite a bit more setup compared to the MicroPython example.
Hey there, @Addy310997, and welcome to the forum, glad to have you here.
Unfortunately, Olivia is right. We have no Arduino examples for working with the Walter board. The closest I can suggest would be installing micropython on the Arduino and modifying the project as you go, but it definitely would not be an easy or efficient way for working with the Walter.