"Hi, I have bought 2 APM2s over half a year ago from DIYDrones, they both had firmware with PPM passthru loaded when I got them..
I wonder if the PWM to PPM encoder will disappear in a future version, and instead the APM will accept the different new…"
Justin's Discussions
Skywalker users? - PID question
Started this discussion. Last reply by spagoziak Dec 15, 2011. 3 Replies 0 Likes
Has anyone tuned the basic PIDs from the default and found anything they can share?I'm trying to figure out why the skywalker "example" config file has a P value of 3.0 for roll and pitch servo…Continue
Watchdog friendly bootloader for 2560
Started this discussion. Last reply by CensoredUser ExWikiNinja aka KF May 23, 2012. 1 Reply 2 Likes
Attached (coming shortly, I'm testing a change to this to fix power-on condition) is a slight modification to the stock bootloader for Mega 2560s (source is at …Continue
MTK GPS 4hz - real fixes?
Started Dec 9, 2011 0 Replies 0 Likes
I'm looking at an OSD that displays (from ArduPlane) the GPS coordinates at 10 times a second.I'm watching the video of the plane coming in to land, and stopping in a very short space of time, so the…Continue
Epi Osd with modified firmware (based on CE-OSD)
Started Dec 1, 2011 0 Replies 0 Likes
Like many I am waiting for Minimosd however in the mean time I (heavily) modified the open source "ce osd" firmware available for the Epi-OSD board and came up with an ArduPlane OSD. …Continue
Justin's Page
Latest Activity
Oliver replied to Justin's discussion The eternal search for a daylight readable screen"Problem solved: I just purchased, for $254 delivered, a circa 2008/9 Toshiba Portege laptop with a transflective (that's the correct spelling, not "transreflective") screen. It is nicely viewable, though of course not all brilliant,…"
Redhouse replied to Justin's discussion The eternal search for a daylight readable screen"I found some professional looking screens that look nice and the price is decent for what you get. The following model appears to have DVI/SVGA/analog inputs
eg. 12.1" 1000NIT display, dvi/svga/analog inputs @smallpc.com
For my own use I…"
Stephan Hiltenkamp replied to Justin's discussion The eternal search for a daylight readable screen"That actually is the screen, the XO-1 has. It was the first mass-produced device that got it. And the ancestor of all netbooks. The XO might lose out in terms of raw CPU power, though.
Otto"
CW replied to Justin's discussion The eternal search for a daylight readable screen"I would also check out the pixel qi screens. There are two netbooks on eBay right now that have them installed, one for as low as 225. I use qgroundcontrol wih mine. It has a netbook screen function."
Stephan Hiltenkamp replied to Justin's discussion The eternal search for a daylight readable screen"The XO-1 from OLPC has the screen you are looking for (and is rugged, fanless, runs on 12V etc., but my be too small for you and or be lacking in performance) and runs Linux. Right now I am using my old MacBook as ground station but I will pull out…"
Lucian Ungurean replied to Justin's discussion Getting the code to build in make, or at least outside the Arduino IDE"I noticed that setting a makefile based system on Windows takes lots of time (i'm trying this for 2 weeks and still got errors), but I saw the discussion about cmake. Should I switch to cmake, and can this cmake integrated in eclipse?"
Mike commented on Justin's blog post Wind capable ArduPlane and vector field navigator - demo video"Justin, great project! Any test flights yet?"
Luc Maximilien replied to Justin's discussion The eternal search for a daylight readable screen"Here is the ground station I have done for professional purposes , for this one I used a 17" 4:3 1200 nits Lcd , it has a photo sensor that automatically increase or decrease the lcd brightness according to environment luminosity,…"
DeveloperR_Lefebvre replied to Justin's discussion The eternal search for a daylight readable screen
"I bought a Sony Vaio F-series laptop, and it has a matte, HD screen with quite bright backlighting. It's not as good as transreflective, but I don't have a lot of problems reading the screen in direct sunlight. It's pretty good,…"
CW replied to Justin's discussion The eternal search for a daylight readable screen"I have a pixel QI screen running in a netbook, and it works great for me. The screen is small and that causes some problems with the ground control though...need to figure out how to tweak that screen for my needs."
Bill Evans replied to Justin's discussion The eternal search for a daylight readable screen"I use a Panasonic Toughbook model cf-19. It's a bit expensive but it has a touch screen that you can see in sunlight."
Jae Wook,Kim commented on Justin's blog post Wind capable ArduPlane and vector field navigator - demo video"@Justin
*please* I would love to test the HIL version for APM1 & APM2 Xplane.
How can i test your HIL version?
thanks.
"
Justin commented on Justin's blog post Wind capable ArduPlane and vector field navigator - demo video"In the sim everything works well :)
however I'm now buried up to my eyes in the group efforts to improve some of the support libraries which are critical for providing accurate sensing. Of course in the sim we have perfect information. I hope…"
Recmaster commented on Justin's blog post Wind capable ArduPlane and vector field navigator - demo video"Hi Justin!
Do u have some positive results with your wind-resistand code testing? "
Justin commented on Henry Fletcher's blog post Switching from DCM to Quaternion"I would like to drop in a comment about the need for wind estimation in or around DCM.
I believe the original design of DCM was to *let the wind yaw the matrix*, in this way the UAV began to compensate for the wind, and could still navigate. How…"
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Justin's Blog
Wind capable ArduPlane and vector field navigator - demo video
Posted on January 25, 2012 at 5:30am 23 Comments 4 Likes
An update on my project (please see my previous two posts).
See http://www.youtube.com/watch?v=lhdR2Iesfuw
This is a screencast of APM2 running in HIL mode with the X-plane RC plane in an 8kt wind over a simple course, takeoff, circuit including loiter, land, fully auto (radio not touched). In…
Continue Russian 18th century Mathematician Vector Fields Guidance vs Now
Posted on January 5, 2012 at 5:19am 4 Comments 0 Likes
An update on the navigator concept:
(see here
I think the screen shot is interesting.
On the left is ArduPlane Desktop in default config, running the "autotest" mission at 1000hz perfect world data.
On the right is the…
Continue Proof of concept cross-wind navigation (and low level) autopilot with vector field surface tracking
Posted on January 1, 2012 at 2:00am 17 Comments 5 Likes
Happy new year!
I've put together a proof of concept autopilot based on the Lyapunov Vector Field path following stuff documented in various UAV research papers of the last many years. It is here:
http://i.dslr.net/vectorfield/autopilot.html
It is written in javascript can can operate in one of two modes. It is only tested on Chrome.
a) it can fly JSBSim,…
Continue ArduPlane with EpiOSD running modified firmware using mavlink
Posted on December 9, 2011 at 3:30am 0 Comments 4 Likes
http://www.youtube.com/watch?v=O4eJ9zJ3Adk
I've finally got the interference bugs out of my wiring and I'm happy with the picture from front all the way through to DVR and upload, and in the goggles as well.
This OSD firmware takes its info from Mavlink, just like the upcoming…
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