The original yoyo for me was dropping about 8' then rising back up. This occurred when stopping from forward motion. For the most part this has been resolved with the new firmware. However, I do notice that sometimes it will rise up 3-4' occasionally, but I can deal with that most the time. It's still not as stable as my P3P when comparing vertical stability, but it got closer with the latest firmware.How do you mean that the altitude is flawed?
I noted that the my P4 dropped maybe 7-8 meters when it stopped after it had been flying quite fast for a while but the altitude report was constant during the drop so the P4 just tried to maintain its height!
Is this sensor error due to heat or something else?
I wonder what the DJI fix actually is doing?
/hakan
What I'm seeing for altimeter is about a 50' deviation from reality, which I've never seen before. This doesn't happen 100% of the time, but most of the time. After a flight when I return to my launch site the altitude will say something like 60' high, when it's really only 10' high. I noticed this when I was flying a Litchi mission from a cliff, but when it returned back to home, which was my last waypoint, set at 10' high. The craft would have crashed into the cliff had I not stopped the mission. When I brought the craft in manually the altimeter stated 63' high, and in reality it was only 8' above launch point. The strange thing about this is the VPS vertical sensors should work below 30', and it should be accurate, but it's not. I need it to be accurate for Litchi missions at all levels, but it's off about 50 to 60' off from time to time. Very strange. I see others reporting similiar experiences, so I assume this flaw was introduced into the last firmware that fixed the yoyo. I think DJI has a bigger problem with the P4 barometer and they are struggling to fix it with a firmware patch. This is should be easy to fix in firmware if the barometer is working right, but I have a hunch something else is going on in the hardware. I don't like being so cynical, but this yoyo issue, and now this altimeter issue has me wondering. I don't think DJI tests new firmware very much, these new flaws aren't that hard to spot.
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