A Scary Flight after installing Remote ID Module

[7cyclops]

My H hates my travel trailer,,,and aluminum extension ladders and the fence around the garden.Took me a while to get this allfigured out!John at Y Skins helped me out with destroyed camera and I replaced 1 arm myself. Now I fly in open areas,even had 2 acres of timber cut for flight tests etc.Yuneec skins comments were right on the money. No way would I fly anywhere near all those carports and MH's. Peace,KC

 

[Richie]

Thanks friend. I know Yuneec Skins is incredibly helpful to all Typhoon owners. I had a normal flight at the park with it. I just never had that problem before and now I wont let it happen again

 

[1midniterider]

I have a theory that may explain the behavior of the drone.
The latency between 2.4GHz RC and 5.8GHz WiFi is somewhere between 0.16s and 0.2s which is a lot when you control an aircraft. Normally it is no problem. But due to Dual band redundancy feature the drone switches to control via WiFi when the 2.4GHz connection is lost for a while. If it switches forth and back you will suffer from feel erratic flight behavior due to latency. And exactly this is happen.

View attachment 30473
From 20240412 16:40:19 on there are gaps in the 2.4GHz telemetry. Around 1min later you decide to switch off the GPS support and bring it down (red cursor). After that there are still fall-backs to WiFi which makes it hard to control the a/c, even harder when GPS is off.

Maybe there are interferences between RID and 2.4GHz RC control connection or a bad mouning place of RID module or ... I don't know.

Questions:
Is the RID module somehow connected to the drone? Power supply for example? If so a ferrite core at the wiring may help.
Do you have a 3-antenna ST16 or a 2-antenna RC? If 3-antenna RC how the 2 rod antennas are directed? Parallel or 90° to each other (should be 90°)?
Do you point the rod antennas to the drone (never do this)?

Remark: ST16 time changed 1 hour midflight because ST16 tokk time from GPS now.

So, if the RID is connected to the drone, it can cause issues? Are you suggesting wrapping the wires that connect to the FC around a ferrite core?

 

[Richie]

So, if the RID is connected to the drone, it can cause issues? Are you suggesting wrapping the wires that connect to the FC around a ferrite core?

No Im guessing it was just some magnetic interference coming from my trailer park and not having done a compass calibration for a long time

 

[Richie]

Watched your Video... Great Save !!
Not sure how you pulled that off coming in at an Angle for an Emergency Landing...

This happened again only at the park. About 2 mins in and I lose GPS for a minute or two. I crash landed it again with luck although not going as fast as before. Im too scared to fly it now. IDK what to do. Do I need a new flight board? Is there malware on the st16? Do I reinstall firmware? or hang it up in the closet?

 

[WTFDproject]

IDK what to do.

Upload the flight logs again. Maybe something will show up this time as a clue.

 

[Richie]

Upload the flight logs again. Maybe something will show up this time as a clue.

 

[Richie]

I keep trying to upload the files but it wont let Me. It stays at )% A couple days agoI got it to 3%. Ill keep trying

 

[WTFDproject]

I keep trying to upload the files but it wont let Me. It stays at )% A couple days ago I got it to 3%. Ill keep trying

Did you zip the files before trying to upload them?
These are the full instructions:
Typhoon H Flight Log Retrieval

 

[Richie]

Did you zip the files before trying to upload them?
These are the full instructions:
Typhoon H Flight Log Retrieval

Yeah, its been compressed

 

[Richie]

Ive tried using 3 different browsers. Ill try again tomorrow

 

[Richie]

still wont upload

 

[Richie]

I was trying to upload the wrong log

 

[phoonflyer]

My first flight after putting the Holy Stone RID module. It flew fine for about 2 minutes then it wasnt going where I pointed it to and almost crashed into my neighbors house so I let go of the sticks to let it hover and it started flying backwards by itself. I had to fight it to get it back and because i couldnt let go of the sticks I had to hard land it at speed. With my Cat-like reflexes I kept it from crashing . Ok I just got lucky. I dont know if the RID was blocking my GPS cause it wasnt gonna hover. Then a look at the Flight Log That says I flew to the middle of Africa and back to California. IDK what happened. Im a little shook up so Im gonna rest and then figure out how to upload my flight logs to see if anyone can make heads or tails of it

I've been there....everything is fine until it isnt and you have no idea whether its going to fly away or just drop out of the sky! Great save! Altitude and shut off gps is what I do. Just hit calibrate, and gps off. Something you might wanna practice.

 

[h-elsner]

What I have seen from the flight logs there are unusual IMU status values. I need to write a program to list this stuff from a fair amount of flights from your drone and from other drones just to compare. This will take some time but maybe it will help to have a better diagnosis tool at the end.
It looks like the controller GPS bit is never set. Please let the ST16 sit powered on in a free are to help to get a proper GPS in ST16. The accuracy of ST16 GPS in RemoteGPS files is really bad.

 

[DoomMeister]

What I have seen from the flight logs there are unusual IMU status values. I need to write a program to list this stuff from a fair amount of flights from your drone and from other drones just to compare. This will take some time but maybe it will help to have a better diagnosis tool at the end.
It looks like the controller GPS bit is never set. Please let the ST16 sit powered on in a free are to help to get a proper GPS in ST16. The accuracy of ST16 GPS in RemoteGPS files is really bad.

I was seeing the same issue @h-elsner and was about to post when I saw yours.

It also seems that when it has sat without being used for a couple of months @Richie may need to let it sit powered and idle for 12 minutes so GPS on both the aircraft and the ST16 are able to update the almanac.

The latest flight only sat for about 2 minutes before he got GPS Ready even with 12 satellites. Then after being airborne he lost GPS and reverted to Angle mode without GPS.

As an interim aid I would suggest powering up the system every 2 weeks for 15 minutes preferably outside where GPS can be acquired.

 

[Richie]

I was seeing the same issue @h-elsner and was about to post when I saw yours.

Somewhere in the logs I found a couple of "Compass Calibration" warnings. I drove quickly to the park, did the calibration
and now it flies as good as new. I had it up for over ten minutes flying all around. I hadnt flown in almost a year as i didnt have a working battery and forgot that once in a while ya need to do a calibration. Im thankful it was something simple and didnt cost anything cause I kept thinking it might be the main board or something in the st16 glitching out. Thanks for putting up with me all this time. Its still such a cool aircraft and I still love flying it

 

[DoomMeister]

Somewhere in the logs I found a couple of "Compass Calibration" warnings. I drove quickly to the park, did the calibration
and now it flies as good as new. I had it up for over ten minutes flying all around. I hadnt flown in almost a year as i didnt have a working battery and forgot that once in a while ya need to do a calibration. Im thankful it was something simple and didnt cost anything cause I kept thinking it might be the main board or something in the st16 glitching out. Thanks for putting up with me all this time. Its still such a cool aircraft and I still love flying it

Doing the compass calibration can help sometimes, but more important is giving the aircraft and controller time to get a stable GPS lock. If you are flying only once every couple of months just power up and let it sit idle for 12 minutes outside in the open before flying. That should help prevent the loss of GPS Ready while in flight.

If it has been awhile it is advisable to do the static accelerometer calibration even more so than the compass calibration. Do it on as perfectly flat surface as possible. It takes less than a minute to do and helps maintain a more stable hover.

 

[h-elsner]

Here is a history of IMU status (only values during real flights, flight mode <> 16).

We see a lot of cases where drone Compass bit is not set (69, 97, 225). Hard to say if this is really a problem but worth to think about that.
Often the Controller GPS bit is not set (69,97, 101). Just to wait a little bit longer may reduce this effect.
Lost GPS is indicated by IMU status = 69. This only happens when also controller GPS is missing.