Hi everyone
I have a H4 DIY with APM 2.5. I have been flying the copter without any issues for the past day except Loiter which is sometime mad... I went to an open football field and started it up. I let the GPS lock prior to flying it (nice winter day, 15 degrees celcius). I took off in Stabilize mode and flew about 30-45 feet away in Alt-hold and then engaged RTL. The copter did exactly what it should and returned and landed. I again wanted to test it. This time I took off , flew a little bit far away and then engaged Alt-hold and switched to RTL. This time the copters started to fly up to 50 m.like a rocket. I took control and saved it. I get 3 times this behavior.
I spend hours reading forum but I cannot figure out what´s happened.
Here are some pictures, logs.
Mi quad is a H frame, 52 cm, APM2.5 with 3.0.1, Neo 6M gps, DT700, ESC30AMP, 3S 4500Mah, 3DR telemetry, I have also balanced the props, calibrated the ESCs, calibrated the gyros and compass + compassmot.
I have a doubt about WP pids....
Any help could make me happy !
Best regards
Max (from Montevideo, Uruguay)
Replies
I think, reading the discussion "Best moment to switch to ALT_HOLD", that I 'made' the same mistake : adding throttle while putting in Atl-Hold. I get 3 times the same behavior, testing the alt-hold. It's quite dangerous because it seems that the quad keep going up even cutting throttle.... and RTL does not do anything to keep it at my 3 meters setup....
As developer, I think it's a bug because the code does something that could be dangerous (better to code that nothing happen if there is some conflict...) - I could lose 3 times my drone and I am very very very lucking to get it back....