Jan Schermer
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Jan Schermer's Discussions

Help with tuning Loiter

Started this discussion. Last reply by Jason Short Apr 28, 2012. 1 Reply

Hi,I have an Y6 that flies very well (knocks on wood), I think I solved most of my problems with previous designs and it flies really straight and there's not much of mag interference etc.But Loiter…Continue

Please tell me - Are you able to disarm after a crash?

Started this discussion. Last reply by Randy Mar 13, 2013. 25 Replies

Please, could those of you who had some nasty crashes tell me how your copters react after a hard crash? Are you able to disarm them? I had a motor fail in flight today and it's not the first time I…Continue

Loiter with missing GPS

Started this discussion. Last reply by Jan Schermer Mar 24, 2012. 1 Reply

Hi,I've got a hardware problem with my GPS which led me to discover a possible issue with Loiter.When you engage Loiter, and GPS stops working for some reason (in my case it's a cold ground…Continue

Compass declination - why isn't it calculated automatically?

Started this discussion. Last reply by Adam Rivera Mar 7, 2012. 7 Replies

Hi,maybe a silly question - why isn't magnetic declination calculated in code from the GPS coordinates? Is there something that prevents it? Should be more precise and it might make a difference for…Continue

 

Jan Schermer's Page

Latest Activity


Developer
Randy replied to Jan Schermer's discussion Please tell me - Are you able to disarm after a crash?
"Inookentiy,      Sure, I've been moving house for the past few days but I'm back in the saddle now and will have a look and reply on your original thread."
Mar 13, 2013
Innokentiy Antipin replied to Jan Schermer's discussion Please tell me - Are you able to disarm after a crash?
"Hello Randy! Could you please have a quick look at my post and tell me what you think about my crash http://diydrones.com/forum/topics/crash-people-please-help thank you!"
Mar 13, 2013
Jan Schermer replied to Florian G's discussion SBAS / DGPS + Auto Magnetic Inclination ?
"You don't need declination without GPS - at all :-)"
Jun 12, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"That's something on your end, I just tried and it downloads FMP04.zip for me."
May 22, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"Yes, DIYDrones have 1.6 custom firmware with binary protocol, but it acts funny to me. Flyduino has also it's custom firmware(s) and one of them allows permanent settings... There are more firmware for FMP04 out there, with various features,…"
May 22, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"I flashed other firmware into my FMP04 and it added the possibility to write settings to EEPROM - so they are not lost on restart. I think it was this one: http://www.file-upload.net/download-4231941/FMP04.zip.html You then start MiniGPS,…"
May 21, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"Well, the idea (so far only an idea) is to be able to make an autonomous swarm, or at least a much more autonomous unit than just an autopilot. With optical flow (but computed in the code, not offloaded to a mouse sensor), many more inputs and…"
May 21, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"YMMV. I only ordered some minor stuff like APC220 adapters, but it shipped in a few days... The same goes for HK - sometimes it shipped the next day and sometimes it took 2 weeks for "in stock" items to make it from their warehouse. You…"
May 21, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"I also understand, just trying to show you a dumb consumer point of view ;-) How about showing it as "in stock" then? One week wait is hardly a backorder, and it keeps people like me away... Btw any plans for ARM aka APM3? The last I…"
May 21, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"Yeah, but I can order XYZ now and get it by the end of the week. When you're building something for fun you don't really want to wait :-) And even china-ordered stuff beats 3 weeks+post office (in .cz that makes it more than 5 weeks...)I…"
May 21, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"Yeah, nobody arguing about that... I'm just saying it's not at all unexpected. I would have gotten APM2 myself if not for the long delay, I got Flyduino instead and I'm waiting for someting with ARM :-)"
May 21, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"Well, APM 2 is on constant backorder, so it's only natural for someone to fill on demand. It's also more expensive than the DIYDrones one so it shouldn't make sense for someone to buy this one instead if it was possible to get…"
May 21, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"Do you have something set for CH7? (Like CH7_RTL?)This happened to me when CH7 was not calibrated - even slightest variation in PWM output from the RX caused it to jump into RTL momentarily, and it looked like surges... "
May 17, 2012
Jan Schermer replied to Randy's discussion ArduCopter 2.5 released!
"I second that. I had to use Rate_P as low as 0.040 to have a stable flight with some motors/ESCs..."
May 2, 2012

Developer
Jason Short replied to Jan Schermer's discussion Help with tuning Loiter
"You need to tune down the Loiter_rate_P values. It's maybe 3 by default? Try lowering it to 2. Loiter_rate_P translates desired speed to pitch/roll. If you have a lot of thrust available, you may get too much sideways movement for a certain…"
Apr 28, 2012
Jan Schermer posted a discussion

Help with tuning Loiter

Hi,I have an Y6 that flies very well (knocks on wood), I think I solved most of my problems with previous designs and it flies really straight and there's not much of mag interference etc.But Loiter just doesn't work for me. It look like it works for the first couple of seconds, then it starts overshooting wildly and if I let it it just flies away (I mean really full forward/backward/somewhere, at an insane speed).Is there some good howto on Loiter tuning? I tried "guessing" and it made no…See More
Apr 28, 2012

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About Me:
Sysadmin, geek, DIY n00b
Please tell us a bit about your UAV interest
I fell in love with quads ;)
Hometown:
Prague

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