Replies to This Discussion

Permalink Reply by Ken on February 4, 2011 at 7:29pm

NMEA is considered old school to many of the people here and support is limited. It may not be fully debugged or may rely on a specific GPS's implementation of NMEA, not the real spec.

A quick look at the IMU 1.8.2 NMEA code show that it is trying to obtain speed and track from (only) the GPVTG message. (Several messages carry that information.)

Is your GPS sending this message? A lot don't (unless commanded to.)
The code should probably be modified to get speed and track from a more common message.

• ▶ Reply

Permalink Reply by Scotty on February 4, 2011 at 7:41pm

I did update the gps so as to send out the VTG info, but same results. How would I modify the code to look for it under another heading? I know RMC sends it out, but I don't have quite enough know-how to modify the .h and .cpp files.

• ▶ Reply

Permalink Reply by Scotty on February 5, 2011 at 1:05am

Alright. I reset the gps, and ArduIMU, I then reprogrmaed the gps to spit out the correct sentences with "TinyGPS" after another reset of both, the ArduIMU worked great. Thanks for your help.

• ▶ Reply