Prearm: AHRS: ek3 sources require gps

ArduCopter
1

I am using an OMNIBUS F4 v3 to drive a F450 frame with Walkera Devo 7 Sbus Receiver. I can arm the quadcopter without turning on the Devo7 Transmitter but once I turn it on I get this error and can not arm
Prearm: ahrs: ek3 sources require GPS

I did not have my GPS and compass connected to the FC at that time but I removed them from the Arming_check in the full parameter list. I later plugged them in and retry but the same error appeared… How do I fix this?

2

Check the connections and provide a clear view of the sky so that the HNSS receiver gets a fix.

3

Okay I’ll try that tomorrow but I’m testing indoors and it worked before but idk why it’s not working now?

4

GPS is not reliable indoors. Sometimes it works, most times it doesn’t.

Instead of being supprised that it did not work indoors, you should be surprised that it at some point did.

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