Developer
John Arne Birkeland
  • Male
  • Norway
Share

John Arne Birkeland's Friends

  • Halil
  • Steve
  • Hawkvision
  • Patrick Palensky
  • Tilman Griesel
  • Graham Harding
  • Dieter Gross
  • Solar System Express
  • Demetris Zavorotnitsienko
  • Hamilton From Above
  • Bill James
  • Shyam Balasubramanian
  • Bill Bonney
  • Nick Goodey
  • Dean Wynton

John Arne Birkeland's Groups

John Arne Birkeland's Discussions

Problem maintaining pitch when accelerating / decelerating.

Started this discussion. Last reply by Michael Zaffuto Jul 2, 2010. 29 Replies

Servo problem with the new red (328) cards?

Started this discussion. Last reply by Chris Anderson May 3, 2009. 22 Replies

 

John Arne Birkeland's Page

Latest Activity


Developer
John Arne Birkeland commented on Jack Crossfire's blog post The 1st fatality caused by a self driving car
"Looking at the crash video, something was obvious very wrong with the system. Lidar and radar should both have detected the person long before she got in front of the car regardless of lighting conditions, and finally the visual system should have…"
Mar 27

Developer
John Arne Birkeland commented on Charles Blouin's blog post Pacific Drone Challenge
"My first thought was to build a blimp, giving you 'unlimited' flight time to solar charge batteries etc. My second was that Japan to USA is the same direction as Jet streams flow if I am not mistaken."
Jan 20

Developer
John Arne Birkeland commented on Patrick Meier's blog post World Bank launches Open AI Challenge for Aerial Imagery of South Pacific
"As usual PR statements are dumbed down to a level where they contain no actual information. The AI mission criteria and data sets can be found here. https://docs.google.com/document/d/16kKik2clGutKejU8uqZevNY6JALf4aVk2ELxLeR-msQ/edit Quote from…"
Jan 14

Developer
John Arne Birkeland replied to Paulo Neves's discussion Campaign for Sony Multiport protocol reverse engineering
Dec 2, 2017

Developer
John Arne Birkeland commented on Chris Anderson's blog post First pass at a Drone family tree diagram
"Hi Chris, Depending on what message you are telling, I think it is a bit of a oversimplifications to say that RC are 'pilots' and robotics is 'developers'. The RC community has always been extremely DIY oriented. For a very long…"
Nov 23, 2017

Developer
John Arne Birkeland replied to Hussien Jarrar Atieh's discussion What is the purpose of the PPM encoder in APM2?
"Hi, ICP5 is Input Capture Pin 5. Meaning it has an input capture interrupt that is tied to hardware Timer 5. So every time you have  a signal change on the ICP5 pin (rising or falling edge depending on setup), you get a interrupt call that…"
Nov 23, 2017

Developer
John Arne Birkeland commented on Alex Williams's blog post Open source underwater glider
"Best example of a true open-source/DIY spirited project I have seen in a long time."
Oct 19, 2017

Developer
John Arne Birkeland commented on Chris Anderson's blog post Eagles vs Drones (spoiler: Eagles win)
"In my experience from flying normal RC planes, the trick is to gain altitude as quickly as possible. From a birds perspective if you are capable of flying higher then you are the predator. Doing sharp turns etc. only makes the bird more persistent,…"
Oct 1, 2017

Developer
John Arne Birkeland commented on Composites Connectors's blog post Make your next project faster, lighter and stronger
"Maybe it's just me that is old, but here is what I was thinking.. Composite connector"
Sep 30, 2017

Developer
John Arne Birkeland commented on Gary McCray's blog post Sony RX0 for $700.00 looks way better than GoPro
"While I agree about 4K not really being a must have resolution  yet, you at least want something one step above 1080p to be able to do post stabilization etc. and still get a nice 1080p result. If they included 2.7K I would probably get one."
Sep 2, 2017

Developer
John Arne Birkeland commented on Gary McCray's blog post Sony RX0 for $700.00 looks way better than GoPro
"Looks very promising. But Sony semi-pro products has a tendency to include some weird limitations to avoid competing with their own more expensive pro range of products. This time it's internal video recording resolution being limited to 1080p."
Sep 1, 2017

Developer
John Arne Birkeland replied to Rafi Nahmani's discussion How to get longest flight time on octocopter that has decent payload already on it?
"1, You want a helicopter, 45 min is easy on that platform. 2. If you are stuck using a multicopter, reduce weight. This is by far the biggest factor for flight times."
Aug 24, 2017

Developer
John Arne Birkeland commented on Dino Mehanovic's blog post Drone Landing Autonomously on Walls
Aug 8, 2017

Developer
John Arne Birkeland commented on Alexandre Mainardi (Nuvem UAV)'s blog post THOR hybrid UAV hovers like a helicopter, flies like a plane
"Propellers mounted on propellers. My head hurts.. :)"
Jul 29, 2017

Developer
John Arne Birkeland commented on Cameron Sickbert's blog post Emergency Response UAV Now on Indiegogo!
"Off the top of my head you need some kind of CF rods that bolts into place in the joints to get decent strength and rigidity. But this is a typical example of how such things quickly gets tricky. To loose a fit and you get unwanted movement, and to…"
Jul 10, 2017

Developer
John Arne Birkeland commented on Cameron Sickbert's blog post Emergency Response UAV Now on Indiegogo!
"Those folding wings are going to be an endless source of frustration as you progress towards a working solution."
Jul 10, 2017

John Arne Birkeland's Blog

DJI issues forced update to GO 4 app

Posted on July 2, 2017 at 6:56am 10 Comments

As some of you may be aware off, there have been a lot of modding/hacking activity with regard to DJI products lately. In what seems to be an response to this, DJI has just taken the unprecedented step of forcing an app update on all users not running the latest GO 4 v.4.1.3 version.

Personally I find…

Continue

ArduPilot and DroneCode part ways

Posted on September 9, 2016 at 1:00am 140 Comments

Source: http://discuss.ardupilot.org/t/ardupilot-and-dronecode/11295

For the attention of the users, supporters, fans and corporate users of ArduPilot:

The ArduPilot project is going through a transition. We…

Continue

Fast accurate LIDAR

Posted on June 2, 2016 at 2:06am 5 Comments

Interesting article in EE Timers Europe. http://www.electronics-eetimes.com/news/light-centimetre-level-slam-drones/

Working deeply with CERN (European Centre for Nuclear Research)…

Continue

GoPro announces third-party developer program

Posted on April 15, 2016 at 1:23am 1 Comment

Article from ZDNet.

GoPro quietly announced its Developer Program on Tuesday, as it looks to incorporate…

Continue

DJI, Parrot, GoPro and 3DR leave Small UAV Coaliton

Posted on April 3, 2016 at 6:30am 7 Comments

From USA Today article Drone coalition splits as DJI, GoPro faction quits.

SAN FRANCISCO — The national group that represents companies that make and sell drones has split, with those focused on consumers…

Continue

Comment Wall (7 comments)

At 3:30am on April 17, 2011, thomas marschall said…
Hei

Fant deg her på diydrones og tipper du har arducopter? Jeg prøver å kartlegge antall piloter i Norge for
å skrive en artikkel om dette.

Også skal vi i løpet av året organisere en arducopter / uav dag og du er kanskje interessert?
--

Vennlig hilsen / with regards

Thomas Bjørn Marschall

At 3:31am on April 17, 2011, thomas marschall said…
Hei

Fant deg her på diydrones og ser du kanskje har arducopter? Jeg prøver å kartlegge antall piloter i Norge for
å skrive en artikkel om dette.

Også skal vi i løpet av året organisere en arducopter / uav dag og du er kanskje interessert?
--

Vennlig hilsen / with regards

Thomas Bjørn Marschall
At 6:31pm on April 17, 2011,
Developer
John Arne Birkeland
said…
Heisann. Har vel strengt tatt ikke et arducopter da jeg liker å bygge mest mulig selv, men flyr quad mm. ja. :) Noe samling høres moro ut.
At 9:30pm on September 1, 2011, Ravi said…

Hi john, i am able to get PPM output from a PIN of Thomas Scherrer 12 channel receiver. is the PPM sum signal compatible with the ATmega2560 PPM decoder or i have to decode it through a interface. actually i am more of an aircraft engineer and less of a electronic engineer. the signal is coming from a Futaba 7C Tx onto a 12 channel thomas Sherrer Rx on 12 channel pin. can i give it directly to PIN 1 of APM after shortening PIN 2 &3 or i have to use an interface using PPMencoder. please help. i am currently using APM2.23. thanx, ravi

At 3:43am on September 2, 2011, Ravi said…

Hi john, i tried giving PPM to channel 1 PIN of APM and shortend PIN 2 & 3. did not work. I am not getting PWM out to servoes. Thomas Scherrer Rx takes PPM pulse from Futaba 7C Radio. It has a UHF RF Module which has been connected to the PPM out of Futaba 7C, this drives a 12 channel Rx also designed by Thomas Scharrer. I think the PPM pulse form futaba 7C should pass on as it is to the Thomas Scharre Rx which has a PIN for direct PPM out? what should i do next.

At 7:33am on August 18, 2012, Adam Scriven said…

Hey John!

Do you have any updates on Crawler1? What do you think of the Redcat Rockslide 1/8th? How does it hold up to your use/abuse? One of the things about the RS is that the only place making after-market parts for it seems to be RedCat itself, not many 3rd party manufacturers. Has that been a problem?

Thanks for any updates you can provide! ;)

At 8:33am on April 15, 2013, baufay patrick said…

Mister.
I seek information for zero ys-x4 wiffi
you to be able to help me if me question poses has you
I thank you for answer
I am of Belgium
patrick.baufay@skynet.be

You need to be a member of DIY Drones to add comments!

Join DIY Drones

 
 
 

Groups

Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here

© 2018   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service