It looks like v1.6 broke being able to get a heading from an external GPS Receiver. I just tested and confirmed operation with an older SW build (v1.43). Can anyone else confirm this to be true? I made sure to set both the min speed and min speed duration fields to 0.
Are you moving when you test? The code will still gate the heading at 0 speed, but as soon as your GPS shows a slight speed it’ll update.
I am moving during these tests. I have done testing with two different GPS receivers but no heading updates using v1.6. The code changes between v1.43 and v1.6 are minor from what I can tell looking into the code. Not sure what the problem is.
What I have.
https://www.sparkfun.com/products/16344
https://www.adafruit.com/product/4279
Try setting the values to -1, does anything change?