I have build a drone which I carefully designed in every aspect to fulfill my expectations and compatibility.
This drone is now my Development Platform and I’ve flown it now for 2-3 hours so far without any issues. All peripherals are working perfectly together.
Yesterday I was flying the drone and it worked perfectly, I landed it, swapped the battery and wanted to go on the second run, when suddenly, just after lift off, GPS glitches came up.
I was able to prevent the drone from flying in the next tree, than the GPS Failsafe kicked in, an the drone landed in the wheat field, before I could switch the flightmode to stabilize.
Luckly nothing was damaged.
I was ready for the next try, but the GPS failsafe appeared again and cleared in random intervalls.
This was very strange, I thought someone was jamming the GPS.
Today I tested it again back home, and the GPS keeps unhealthy.
Than I checked the gps module with u-center:
This is what u-center does:
As you can see, the Module has a 3D Fix and a very good accuracy
but in random intervalls it cuts off for a short amount of time.
It wasn’t clear for me if something is wrong with the antenna or with the module or its SPI connection. Unfortunately, I don’t have another GPS antenna to test it out.
I tested the GPS with the Navio2 Python Tools:
But it doesn’t work anymore.
But the emlid tool says it is all fine:
Did anyone had a similar problem before ?
Maybe it is possible to make a firmware update to the ublox module?