Christoph
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Loosing altitude in RTL mode

Started this discussion. Last reply by Graham Dyer Feb 5. 9 Replies

Hi!in RTL the plane looses altitude. It first moves up to some altitude close to the defined (90m) and then slowly drops with each circle. Throttle stays at 75% as set. I have to switch to manual to…Continue

APM 2.5 does not connect via USB anymore

Started this discussion. Last reply by ibrahim şahin Feb 27. 5 Replies

I’ve been flying with my APM 2.5 successfully for some months now. Everything worked perfectly. Since yesterday the USB connection does not work anymore. On USB and without other power the LEDs flash…Continue

 

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Latest Activity

ibrahim şahin replied to Christoph's discussion APM 2.5 does not connect via USB anymore
"yes ı have the same problem"
Feb 27

Moderator
Graham Dyer replied to Christoph's discussion Loosing altitude in RTL mode
"Sorry, I'm using v2.78b not v2.78. v2.78 had a bug hence v2.78b."
Feb 5
Christoph replied to Christoph's discussion Loosing altitude in RTL mode
"Perfect, thanks! Missionplanner only offers v2.78b now. Any chance to download v2.78 somewhere?"
Feb 5

Moderator
Graham Dyer replied to Christoph's discussion Loosing altitude in RTL mode
"Hi Christoph, v2.77 had some of the corrections in it and v2.78b had a few more, my main problem seems to be gone with v2.78 so far. "
Feb 5
Christoph replied to Christoph's discussion Loosing altitude in RTL mode
"Hi Graham. Any news from the developers?"
Feb 5

Moderator
Graham Dyer replied to Christoph's discussion Loosing altitude in RTL mode
"The developers have been investigating and have found something, hopefully they'll post their findings shortly."
Jan 16
Christoph replied to Christoph's discussion Loosing altitude in RTL mode
"Hi Graham!I went through all the comments her and in the other thread. What did you finally do? Did you solve your problems?Best,Chris"
Jan 16

Moderator
Graham Dyer replied to Christoph's discussion Loosing altitude in RTL mode
"That's my problem too, loss of altitude while in Loiter. Yours seems more severe as it doesn't recover."
Jan 15
Christoph replied to Christoph's discussion Loosing altitude in RTL mode
"Thanks for the hint. But all the compass related modes work ok. Its only the altitude. "
Jan 15

Moderator
Graham Dyer replied to Christoph's discussion Loosing altitude in RTL mode
Jan 15
Christoph posted a discussion

Loosing altitude in RTL mode

Hi!in RTL the plane looses altitude. It first moves up to some altitude close to the defined (90m) and then slowly drops with each circle. Throttle stays at 75% as set. I have to switch to manual to prevent a crash.Any idea? I have the feeling that the messages from the internal barometer and external GPS don't fit.Thanks! ChrisMy setup:APM ArduPilot Mega 2.6 - vertical Powermodule GPS uBlox LEA-6H with external compassFirmware: V2.76Plane: Phantom FX-61 flying wingSee More
Jan 15
Mustafa YAĞMUR replied to Christoph's discussion APM 2.5 does not connect via USB anymore
"Hi Mr. Peter, I have the same problem also. I read your fixes and suggestions. But there is an important point here. As you know we cant use APM CLI and logs without USB connection. For this situation, do you have any suggestion ? Best regards,"
Apr 17, 2013
Peter Meister replied to Christoph's discussion APM 2.5 does not connect via USB anymore
"Christoph, do you have the radio modems ? If so try to connect to APM that way. If that doesn't work my suggestion is to solder up the UART0 pins and connect the 3DR modem and see if you can establish a connection. This bypasses the USB/PPM…"
Mar 7, 2013
Christoph replied to Christoph's discussion APM 2.5 does not connect via USB anymore
"Thanks. Will try later and let you know!"
Mar 7, 2013

Admin
Thomas J Coyle III replied to Christoph's discussion APM 2.5 does not connect via USB anymore
"@Christoph, These are the kind of symptoms you get when the APM had been shorted out and the serial mux and some of the other components have been damaged. How does your APM responded when it is battery powered and in the manual mode? Regards, TCIII"
Mar 7, 2013
Christoph replied to ChrisB's discussion APM 2.5 funktioniert nur wenn USB angeschlossen in the group German Ardu-Group
"Ich habe den APM 2.5 viel im Graupner Rookie eingesetzt. Sowohl Stabi als auch RTL funktionieren super auch ohne Airspeed. Selbst bei starkem Wind kämpft sich der Flieger sauber voran. Ziel ist, RTL bei FPV für den Notfall zu haben falls…"
Mar 7, 2013

Profile Information

About Me:
Addicted pilot since summer 2012...
Please tell us a bit about your UAV interest
FPV combined with Ardupilot
Hometown:
Munich, Germany

Comment Wall (1 comment)

At 12:22pm on February 5, 2013, ChrisB said…

Yes! :-)

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