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jasonshort
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  • San Francisco, CA
  • United States
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jasonshort's Discussions

Arducopter 2.2 beta

Started this discussion. Last reply by Martin Szymanski Feb 2. 1296 Replies

Arducopter 2.1.1 alpha

Started this discussion. Last reply by John Church Mar 15. 813 Replies

Arducopter 2.1 release

Started this discussion. Last reply by Owen Booth Feb 18. 670 Replies

 

jasonshort's Page

Latest Activity


Developer
jasonshort commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Ryan,  I added in a basic speed estimator: It's pretty noisy. The red is the real speed, green is the GPS speed with latency. The blue is the adjusted speed. Here is the code: speed_input = (g_gps.longitude - last_longitude) /…"
4 hours ago

Developer
jasonshort commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"My intention is to get the SIM modeled as close as possible to the real thing and build an auto-tuning algorithm. It will be my first implementation of what I learned in Machine Learning and AI class. But first I'll need to decouple the code…"
5 hours ago
Charlie Burtoff commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"This is amazing! Great work Jason!"
7 hours ago
Fab - Arduino for Visual Studio commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Jason. Very pretty. APM is the most diverse of them all but it is also hard work, fiddly and time consuming which makes it impractical for a bit of casual fun. If apm manages to achieve what John outlines then it will…"
7 hours ago

Developer
Ryan Beall commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Jason, We really need to improve/create the gps smoothing code to help "remove" the latency.  It's super easy if you want me to talk you through it.  Maybe you could stick it in the flash code if you think your modeling is…"
7 hours ago

Developer
John Arne Birkeland commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Lefebvre: IMU direction, magnetometer offset position (placed on a stick with GPS to get distance from electronics) and gain for pitch, yaw and roll. That is pretty much it."
8 hours ago

Developer
R_Lefebvre commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"John, do they have any settings the user has to fiddle with *at all*?  Or is it totally automatic?"
8 hours ago

Moderator
Chris Anderson commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"John Arne: that's our intention, too. This tool was designed for the dev team to find optimal algorithms that will work equally well for different frames right out of the box, with adaptive methods and self-learning. It's not…"
9 hours ago

Developer
John Arne Birkeland commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"I do not know what special sausage the commercial DJI WKM autopilot use, but the GPS loiter/position hold is some of the best out there and it adapts to different frames without requiring the user to mess with PID settings. If we could get anything…"
9 hours ago
Marooned commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Would be good to introduce genetic algorithm to find the best values."
11 hours ago
viky commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"wow really useful application"
13 hours ago
Taylor Davis commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Awesome Awesome Awesome! "
13 hours ago
Peter commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Jason   Love your work as always."
13 hours ago
cvanvollenstee commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"This is absolute awesome. You must now just add quadcopter weight, motors size and frame size in the mix so that one can do this to a personal quad copter."
15 hours ago
Eric Tweet commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Brilliant. This helps quite a bit with conceptualizing loiter behavior (for perpetually troubled individuals such as myself) :)"
15 hours ago

Moderator
Chris Anderson commented on jasonshort's blog post ArduCopter Loiter Tuner / SIM
"Jason is a Flash GOD!"
16 hours ago

Profile Information

About Me:
Industrial and Interaction designer
Tell us a bit about your UAV interest
www.smartdesignworldwide.com
Hometown:
San Francisco

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Jasonshort's Blog

Arducopter 2.0.50 preview

Posted on October 31, 2011 at 8:19pm 45 Comments

Google's Self-driving car

Posted on October 20, 2011 at 11:00am 1 Comment

Arducopter 2.0.44

Posted on September 23, 2011 at 3:00pm 95 Comments

Comment Wall (12 comments)

At 8:04pm on October 12, 2009, Doug Connell said…
jasonshort - thanks for sharing your experience. I have added lenses to the flip externally and they work ok, would you mind sharing your lens adaptation for the flip? I have been researching the ardupilot and trying to understand how it might work with our twin easystar - maybe I should just jump in and get it. thanks again for your thoughts.
At 1:07pm on October 29, 2009, Matt Fisher said…
Hey man wondering if you have flight tested your AIR app yet. Would love to get my hands on the source - even just the artwork, it looks amazing. Great to have another Flash dev on here to toss ideas too.
At 6:18pm on November 7, 2009,
Moderator
Chris Anderson
said…
Dang, Jason, it's windy in SF today! You're a brave man for even trying to fly near the water...
At 6:19pm on November 7, 2009,
Moderator
Chris Anderson
said…
Did you recover the plane? I dunked one a few months ago. Tip: rinse *everything* in tap water ASAP before it dries. Otherwise you'll get corrosion.
At 7:13pm on April 7, 2010, Bill Jenkins said…
Hi Jason,
I saw a post concerning rc cars. Well, that's what I want to do but I now understand that this is more complicated than I thought due to the fact that cars move slowly and the GPS has a hard time with that. I understand that one needs other sensors like magnetometers, obstacle sensors and etc. I was wondering if you have seen a post where some nice person has listed the components used and the codes. I was kind of excited to do this but I'm starting to think that the only way would be to have someone who understands it to build it for me or walk me through it. I was thinking that an arduino controller would connect to the ardupilot and the ardupilot would connect to the RC.
I thought I would ask you if you had any suggestions on this.
Thanks,
Bill Jenkins
At 10:53pm on April 7, 2010,
Developer
jasonshort
said…
Sorry I don't. I would Start with the encoder for the wheels. These usually use a hall effect sensor and a tiny magnet attached to the wheel or other rotating part. Maybe that is a hint that could lead you to some example projects.
At 11:06pm on April 7, 2010, Bill Jenkins said…
Thanks for your reply. I'll be sure to add anything that I find useful to the forum.
Bill
At 11:51am on April 9, 2010, Dustin Romero said…
wouldn't you rinse in distilled water?
At 7:54am on June 19, 2011, Denny Rowland said…

Jason

Great to see the work in progress. I have a new APM that I bought ready assembled and programmed  few months back, it was a little too unstable for my Flying Camera Mount designs that I am working on. However I have just uploaded the latest code and will be soon giving it another try. My normal test FC is a KK Minso Kim board that has no bells and whistles so I always have a benchmark to test and evaluate the aerodynamics. I then fit a MK board with the full kit. I am desperate to get away from MK and hopefully your code will be the answer. The thing that I thought might interest you is the fact that my MK boards are modified to take 67 deg/sec Gyros as I need to cage the models movements to stay within the 20 deg/sec that the camera mount uses. It is of course a bit risky if the mk gyros saturate as that would lead to a crash but I keep the stick inputs to a very low limit. The fast response and low noise seems to be the key to great stabilisation, plus the fact that the arms are 1 meter across with highly responsive motor/prop combination. The thought occurred that maybe we could develop a super stable version of AMP just for Aerial Video. The 500 deg /sec gyro does have amplified signal at 110 deg/sec but I expect that it will amplify the noise as well.

At 5:17pm on December 19, 2011, Geir Engebakken said…

I see in the wiki that to enable SuperSimple :

"You can enable this option by setting the parameter named RESET_SIMPLE to 1 ( 0 = disabled)"

Isnt the parameter called SUPER_SIMPLE?

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