I’m brand new to this so bear with me. I have Google searched and looked through these forums with no luck.
I have a Pixhawk 6C connected to an MRO SAM GPS v.3.0. I have been trying to clear all of the arming errors that Mission Planner throws and I got this one that I am stuck on: “PreArm: AHRS: waiting for home”. I have concluded that this error is because my GPS is not connecting to the Pixhawk properly as there’s another error on the Data screen that says “GPS: no GPS”. The GPS was just working 2 days ago and currently, the GPS has one solid blue light and one flashing blue light, so I know it is powered. I have also replaced it with a similar MRO GPS and the same errors were given.
I read on this forum somewhere that the baud rate might be incorrect or the GPS could be plugged in incorrectly. My baud rate is 115200 and the gps cannot be plugged into the wrong port. I have also tried switching cables and that didn’t work.
Then I tried disabling the “GPS lock” arming check and then it gave the error: “PreArm: GPS 1 still configuring this GPS” while still saying: “GPS: no GPS” as well. Then I disabled “GPS lock” and “GPS Configuration” and still go the “PreArm: GPS 1 still configuring this GPS” error.
Running into the same problem here. I’ve been having intermittent problems with GPS and I’m running the latest 4.6.0dev build trying to resolve these issues. Testing it outdoors with a clear sky view, and the GPS acquires the 3D fix, but Ardupilot never gets a home location. Just stays in “AHRS: Waiting for home”. Any thoughts on debugging this?
How can anybody help if you don’t show any details about your system an configuration.
Which FC?
Which GPS?
How connected?
What are the configuration parameters of the FC and GPS?
Did some deeper investigation to get a better understanding. I was working with the Pixhawk 6C and a M9N GPS originally. Just hooked up a Pixhawk 6C Mini with an M10 GPS connected directly to the GPS1 connector. I downgraded to the stable version of the firmware 4.5.5, as well. Params attached, as well as the flight log.
I’m testing in an open field, with clear views of the sky. As you can see from the logs at about 2:40 onward, GPS doesn’t get beyond a 3 for connection status. Number of satellites is between 7 and 8, but never gets a home position. When I check Mavlink the h_acc and v_acc are around 4000-5000, and hdop seems to vary between 140 and 200.