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  • Ebi Ere
  • Michael Pursifull
  • Magnus Selin
  • RC Tech.se
  • Loti
  • Michael Smith
  • Michael Oborne
  • Stefan Lind
  • Ritchie
  • Dimitar Kolev
  • Jason Short

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Latest Activity

Bongo replied to Magnus's discussion APM PPM encoder problem
"Hi have the same problem. Have the APM 1.4 with version 2.9.1, the encoder with the version 0.9. 87 The Fuse bits I've also checked. These are OK. I raise the throttle stick, the blue LED flashes faster. But in the terminal I get no feedback…"
Jun 30
Magnus posted a discussion

APMrover -> APMsail

Some of you might have read my blog posts about ny autonomous sailboat. It is now time to implement my control algorithms on the APM. My plan is to start with the APMrover code and replace some parts with my code. There are a few changes that i need to make and i would really appreciate some advice from those of you that have worked with the code:Add wind sensors (wind angle and wind speed)These are i2c sensors and it shouldn't be to hard to read the data and store it in a data structure. for…See More
Mar 19
Matthew Ward commented on Magnus's blog post Autonomous sail boat part three. Simulation
"This is awesome. What is your objective in terms of making hte boat run? Does it need to complete a course or just sail without crashing? If you need an info on RC Boats you might find this site beneficial"
Feb 25
Kay Fricke commented on Magnus's blog post Autonomous sail boat part three. Simulation
"Found some example code for truewind calculation on the same site too: http://coaps.fsu.edu/woce/truewind/true-C.html"
Feb 21
Kay Fricke commented on Magnus's blog post Autonomous sail boat part three. Simulation
"@Magnus, @Matthew Just a few thoughts from my navigation Lessons and sailing experience. True Wind estimation may be not of great influence in shallow conditions. But considering the fact that the apparent Wind changes are strong in gusty…"
Feb 21
David Zaveski commented on Magnus's blog post Autonomous sail boat and electronic wind vane
"Can you send me the wiring diagram for the as5045..  Any information on how you interfaced it with the UNO would be helpful too.  I am really new at this I am sorry I am asking such basic questions. "
Feb 20
Magnus commented on Magnus's blog post Autonomous sail boat and electronic wind vane
"Thank you Dermot! I think a wingsail could be a good solution especially if you want a rugged solution for extended autonomous missions. "
Jan 9
Dermot Tynan commented on Magnus's blog post Autonomous sail boat and electronic wind vane
"Nice hull, Magnus. For comparison, my Microtransat entry is here: http://blog.beogabeag.org/ I'm planning on using a wingsail rather than a traditional sail, just for reliability."
Jan 9

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Magnus's Blog

Autonomous sail boat part three. Simulation

Posted on October 22, 2013 at 11:00am 10 Comments

This is the third update about my attempts to build an autonomous sailboat with the goal to have it sail by itself next spring.

My first plan for simulation and hardware in the loop simulation was to use the Sail simulator game.You can read more about that in my last blog post. This solution works but the setup with two computers and a number of small programs working…

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Autonomous sail boat part two

Posted on October 1, 2013 at 7:00am 9 Comments

Things are slowly moving forward.

The status right now is:

  • Boat has done some sea trials. It sails, and it sails better than expected.
  • Windvane is integrated with APM using a separate Arduino nano and I2C to the APM
  • APM installed in boat with GPS, compass and…
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Autonomous sail boat and electronic wind vane

Posted on August 25, 2013 at 1:52pm 21 Comments

I have started to build an APM controlled sail boat. 

The hull

The hull is based on a IOM boat called Goth (Free plans here). It is built with balsa strips and then glassed on both the inside and…

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One of those bad days...

Posted on September 1, 2011 at 1:45am 2 Comments

For the last week i have successfully flown my Twinstar with the APM. Everything was tuned and i had developed a good routine for setting things up in the field before flying. Yesterday the plan was to test a long endurance flight (25 min) that also used the relay to reset the XBee to keep the telemetry link for the entire flight. 

 

But this is what happened...

 

The Twinstar comes with a small PCB that houses connectors for the motors and ESCs. The motor…

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First testflight with APM (Updated with a few Twinstar installation photos)

Posted on September 16, 2010 at 2:30pm 12 Comments







/Magnus

Ardupilot Mega test flight report.

Today i did my first test flights with the APM installed in my Multiplex Twinstar II.



I tested the Stabilization mode and the Auto mode with six waypoints in a 1,4…

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Comment Wall (5 comments)

At 7:36am on January 17, 2009, NorthSweden said…
Det låter ju bra. några svenskar är vi vel?
At 11:10am on January 18, 2009, David Legge said…
Bra initiativ. Har du nåt bygge på gång?
At 9:20am on January 19, 2009, NorthSweden said…
okej jag förstår.

Men som sagt detta är ju en väldigt bra sida. mycket intressant läsning.

Kan inte vänta med att beställa en ArduPilot. hehe
At 12:10pm on February 17, 2009, Garth said…
Magnus
how have you found the performance of the Aerocomm units and which ones do you have, I have recently aquired mine and they hav'nt been flying yet!
thanks gl
At 8:50am on May 11, 2009, David Low said…
hi Magnus, any chance u still have the below line following algorithm coding?
http://diydrones.com/forum/topics/navigation-formulas-and-ideas

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