Christoph
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  • Karlsruhe
  • Germany
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Christoph's Discussions

Setup tips and questions (Trex 450)

Started this discussion. Last reply by Christoph Oct 15, 2011. 5 Replies

Dear all, I am planning to try out arducopter with a flybar Trex 450 to gain first experience with the hard- and software.My setup thoughts so far:- will use my 401 gyro with heading hold and plan to…Continue

Loading code with MP works, but prompt line still shows former code version

Started this discussion. Last reply by Randy Sep 19, 2011. 25 Replies

I just got my APM two weeks ago.Read though all the wiki and loaded the arducopter code 2.0.39 beta. It was the code which was available at that time through the mission planer.Now the latest one is…Continue

 

Christoph's Page

Latest Activity

Christoph replied to Rob_Lefebvre's discussion Arducopter 2.9 for TradHeli Discussion
"Ok. Great. I will load it as well. Can anyone comment please how to load. I assume latest version of arduino. Are the right parameters for compiling already set in your download file or do I need to mod anything for apm1 for compiling?"
Jan 3, 2013
Christoph replied to Rob_Lefebvre's discussion Arducopter 2.9 for TradHeli Discussion
"Yes. I only have version one. I think 1.4 is written on the board. With the 2560 processor. besides the filtering any other potential issues? Last version I successfully used was 2.7. something"
Jan 2, 2013
Christoph replied to Rob_Lefebvre's discussion Arducopter 2.9 for TradHeli Discussion
"will this version work on the old board?"
Jan 2, 2013
Christoph replied to malcolm churn's discussion ArduCopter Traditional Heli (was: "600-size heli")
"Happy new year. Same for me. I was out of the game for some months. Randy could you give a brief update how to load that version. With arduiono? How? Which parameters? Sorry to ask but lately only used the MP versions"
Jan 2, 2013
Christoph replied to Brian S's discussion T-Rex 500 with Flybar in the group ArduCopter (traditional heli) user group
"As Robert says, it is basically working. I am using the former APM version on a flybar Trex 450 and could get loiter and auto working. Unfortunately something changed to my setup thus it does not work anymore. I still have not found out what. It…"
Oct 28, 2012
Christoph replied to malcolm churn's discussion ArduCopter Traditional Heli (was: "600-size heli")
"Strange. Loiter does not work anymore. Last 4 flights loiter ended up as it always did in the past. Overcorrections and circles. Absolutely unstable. I am curious what happened. I did not change much recently. Played around with the alt hold PIDs…"
Oct 6, 2012
Christoph commented on Manfred Dickgiesser's blog post T-Rex 450 Test flight -- Loiter / Guided / RTL and Alt Hold
"In addition poor alt_hold has direct influence on loiter, as another observation. Having strong reactions on alt_hold can make really bad oscillations in loiter, because the loiter corrective movement gets in worst case leveraged by an alt_hold…"
Sep 30, 2012
Christoph commented on Manfred Dickgiesser's blog post T-Rex 450 Test flight -- Loiter / Guided / RTL and Alt Hold
"What I also observed is, I think due to the high loiter rate P of 5 I am using, in case of some gusts the reaction of the heli is really harsh to compensate, leading to oscillations. As I reported before that is also in issue when the heli changes…"
Sep 30, 2012
Christoph commented on Manfred Dickgiesser's blog post T-Rex 450 Test flight -- Loiter / Guided / RTL and Alt Hold
"And I realize from your settings that you use much lower I terms in general. As well much lower loiter rate p term. When I tried to lower the p term I got to much drift and oscillations. But maybe I will play with lower I terms as well."
Sep 29, 2012
Christoph commented on Manfred Dickgiesser's blog post T-Rex 450 Test flight -- Loiter / Guided / RTL and Alt Hold
"Very nice loiter and RTL. I did several loiter flights now and tried to tune the PIDs, but found out that not every loiter is as stable as the one on your video. I had similar good ones, but also often overshooting ones."
Sep 29, 2012
Christoph commented on Manfred Dickgiesser's blog post T-Rex 450 Test flight -- Loiter / Guided / RTL and Alt Hold
"Is your 450 flybarless?"
Sep 29, 2012
Christoph replied to malcolm churn's discussion ArduCopter Traditional Heli (was: "600-size heli")
"What are your settings right now?"
Sep 29, 2012
Christoph replied to malcolm churn's discussion ArduCopter Traditional Heli (was: "600-size heli")
"Obervations re loiter PID tuning via CH6 loiter rate I term. Could not notice any effect. Range from 0 - 1.5 loiter rate d term. loiter seems to be slightly better at higher values around 1.5 loiter rate P. Between 5 and 6"
Sep 23, 2012
Christoph replied to malcolm churn's discussion ArduCopter Traditional Heli (was: "600-size heli")
"Haha, on the video it really looks not scary at all. But I do not throw my mobile away just for fun ;) So far I had no crash with APM...knocking on wood...crashes are only with my mobile..."
Sep 23, 2012
Christoph replied to malcolm churn's discussion ArduCopter Traditional Heli (was: "600-size heli")
"Nice try to shoot a video of navigation. Right after switching from loiter to navigation, the motor was cut for a sec or even less. Heli started doing strange things, so I decided to throw my mobile away... Unfortunately I was standing on hard…"
Sep 23, 2012
Christoph replied to malcolm churn's discussion ArduCopter Traditional Heli (was: "600-size heli")
"What happens at the end of a mission? Last command I used loiter for 60 secs but the heli does strange things. Looks like it wants to land our at least decrease height."
Sep 22, 2012

Profile Information

About Me:
Airplane and Helicopter Pilot. Flying Trex 450.
Please tell us a bit about your UAV interest
Recently bought an Ardupilot Mega set and would like to try it with my traditional heli.
Hometown:
Karlsruhe

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