CubeSatSim/gpsd

Following steps from https://gpsd.gitlab.io/gpsd/installation.html

gpsd steps:

1. plug it in and type:

ls /dev/ttyUSB*

the last digit is your device number - could be 0 or 1 or other number. The rest of the commands assume it is 0, so device is /dev/ttyUSB0

2. See if you can get NMEA data out of it (you may need to type it twice to get it to work):

sudo stty -F /dev/ttyUSB0 ispeed 4800 && cat </dev/ttyUSB0

3. install gpsd software:

sudo apt-get -y install gpsd gpsd-clients python-gps

4. disable tcp daemon with these commands:

sudo systemctl stop gpsd

sudo systemctl stop gpsd.socket

sudo systemctl disable gpsd

sudo systemctl disable gpsd.socket

sudo killall gpsd

5. Now run it manually:

sudo gpsd /dev/ttyUSB0 -F /var/run/gpsd.sock

6. You can look at the result:

gpsmon /dev/ttyUSB0

You will need to Control-C to exit

Try running /home/pi/CubeSatSim/gpsd/gps.sh script to see if you get lat lon alt output after about 10 seconds.

Set mode to APRS and restart

./config -a

The telemetry string should end with the three values of lat lon alt. Packets will be sent about every 60 seconds

the APRS location will also update automatically.