I got a Grove GPS sensor with a grovepi+ on a raspberry pi 3. I do not seem to be able to get any GPS data from the sensor at all.
I have installed the GrovePi environment and libraries on top of a raspbian stock and then followed this tutorial. http://www.seeedstudio.com/wiki/images/7/72/113020003.pdf
I have found contradicting HOWTOs that explain that the Grove GPS sensor ought to be plugged to either the port marked as RPISER, or SERIAL or D4. I have tried all three with no results. I have tried outdoors to no avail. I am using the code at this link:
With lines 54-56 commented out.
The LED in the GPS module is on, the little antenna is plugged and has a clear view of the sky.
Any tips on how to get this to work would be greatly welcome.
P.S. I found this about a change in the way that serial operates in the RPi3 but I can’t say if the Grovepi+ would be affected by this change: https://github.com/RPi-Distro/repo/issues/22