Javascript Disabled Detected

You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.

The Netduino forums have been replaced by new forums at community.wildernesslabs.co. This site has been preserved for archival purposes only and the ability to make new accounts or posts has been turned off.

More learning / sample code

Started by Spiked, Jun 06 2014 07:48 AM

Please log in to reply

7 replies to this topic

#1 Spiked

Advanced Member

Members
129 posts

Posted 06 June 2014 - 07:48 AM

SPARKFUN 9DOF IMU STICK ACCELEROMETER AND GYRO RAW DATA TO WPF VIA MQTT

So, still learning, but I seem to be getting along ok, solving a few problems I see others encountering - so if the code helps anyone, great.

If nothing else it shows off WPF simplicity a little for those of you unfamiliar with with it. WPF was the intended replacement for UI on windows. It has been made 'legacy' at this point, but the follow-up - WIndows Store apps are very similar.

http://www.spiked3.com/?p=438

direct links;

http://www.spiked3.c...2014/06/imu.zip

The video shows some 'unaligned' response. I assure you this was a video alignment problem. In actuality the response is very fast and aligned. Next time I will do the screen capture differently as I think frame rate differences messed with me.

Jack Chidley and Giuliano like this

Back to top

#2 Giuliano

Advanced Member

Members
361 posts

LocationSimi Valley, CA

Posted 06 June 2014 - 05:15 PM

Really cool, I see the readings are pretty much real time. Do you experiment any latency? Have you used this board for a QuadCopter?

Solo s� que no s� nada

Back to top

#3 Spiked

Advanced Member

Members
129 posts

Posted 06 June 2014 - 05:23 PM

Just kidding That is me, and my quad copter, but not this board.

I run a flight controller called a Naze32 on it. It is a stm32 like the netduino, with IMU components. I did not write the code.

http://www.multiroto...cro-naze32.html

There is no noticeable latency with the netduino attached to a pc, even with mqtt brokering, although I am sure it adds a tiny bit. Again, the video does not look as good as it really is, because of editing problems.

Back to top

#4 Giuliano

Advanced Member

Members
361 posts

LocationSimi Valley, CA

Posted 06 June 2014 - 08:00 PM

Man, that's so cool, very nice shots!!! Too bad the board is out of stock. I'll google it around to find it. Are you using those fat shark glasses to see where the quadcopter is going?

Solo s� que no s� nada

Back to top

#5 Spiked

Advanced Member

Members
129 posts

Posted 06 June 2014 - 08:18 PM

Yes. I am actually pretty advanced in the FPV quad hobby.

The quad in the picture has a 5.8g video transmitter. The one in the video has a 1.3g video transmitter that goes to a 1.3 receiver, that retransmits to 5.8 - so I can wear the same wireless 5.8 fat sharks for both. 1.3 has better foliage penetration, but 5.8 has more frequencies channel choices - so it depends on if you are flying with friends or behind trees.

my meetup group

http://www.meetup.com/wa-fpv/

That is the best US source I know of for the board. They just sell fast (for obvious reasons). Keep checking.

Giuliano likes this

Back to top

#6 Giuliano

Advanced Member

Members
361 posts

LocationSimi Valley, CA

Posted 06 June 2014 - 09:44 PM

That's so cool, I don't know if that's legal here in California (everything is pretty much illegal here, it's a joke) but I am going to try it out anyway. I'll PM you to get more details if you don't mind.

Thanks for sharing.

Solo s� que no s� nada