Is it possible to get heading information using gpsd and a differential-gps device?
I'm seeing the raw serial messages with the format below coming though, however on the default gpsd port I'm not seeing any heading values.
Raw serial:
$HEHDT,264.69,T*10
TCP port:
{"class":"TPV","tag":"GGA","device":"/dev/serial/by-id/usb-FTDI_USB-RS232_Cable_FTU98S5G-if00-port0","mode":3,"lat":41.408677538,"lon":-132.105521583,"alt":14.460}
Looking in the gpsd man pages I don't see any flags which could help decode these strings. Wondering if its even possible?