hopslink
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hopslink's Discussions

Odd navigation behaviour...

Started this discussion. Last reply by Chris Anderson Apr 21, 2010. 2 Replies

Hi,I am attempting to put in a closed loop entry for T3 round 6 based around ArduPilot 2.6 code and FlightGear. The model currently navigates directly to all waypoints, except those lying to the…Continue

 

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Latest Activity

hopslink replied to Andrés's discussion Leaps in Time in Logs with MTK-GPS
"The encoding looks like HH:MM:SS:ms(3) since SS increments on a 1000 count of ms and MM increments as SS reaches 60. That also explains your plots periodic 60 seconds of data followed by 40 second 'jumps'. Interesting that resolution…"
Nov 28, 2010
hopslink replied to Senior Design 2010's discussion Ardupilot Code question
"AP does not derive dynamic response from a static model of your airframe (nor will any other generic autopilot), so it doesn't ask you for static parameters. Reason? - there is no simple generic static>dynamic model offering good accuracy…"
Oct 29, 2010
hopslink replied to Paulo Sousa's discussion ArduPilot Mega not working with 6V Battery
"The voltage regulator only works for power supplied from the external battery input, which should be greater than 7.4V. Feeding power from the receiver inputs you bypass the regulator - there is no regulation, and at 6.55V you are overvolting your…"
Oct 21, 2010
hopslink commented on Mario's blog post I was already crazy...DIYDRONES made it worst ! The story...part 1
"If you mesh 4 gears like that you get 2 clockwise and 2 anti-clockwise drives while the drive motors both spin in the same direction."
Sep 29, 2010
hopslink replied to Prof Shadoko's discussion Uploading software erases the bootloader on ArduIMU+ V2
"Prof, There are fuse bits which should be set when a bootloader is used to prevent the bootloader memory space being overwritten. It sounds like these may not be set correctly in your case. A guide to avr fuses is here. A google search will get…"
Aug 4, 2010
hopslink replied to Manoel de Deus Mascarenhas Filho's discussion serial monitor does not display correct data
"Manoel, If your serial is running at 2x the declared rate it is possible you are compiling for the wrong arduino board. Check under the Tools > Board menu that you have the correct board selected. If that is not the problem try using a…"
Aug 1, 2010
hopslink replied to BriFly's discussion ArduIMU and MediaTek GPS Receiver
"Attached is a pre-alpha MediaTek parser for ArduIMU. Warning - this is as yet untested so don't fly it!! For testing purposes only. Any feedback welcome. I believe Earl also has some code..."
Jul 24, 2010
hopslink commented on Doug Weibel's blog post ArduPilot Mega v1.0 Alpha 1 release
"ArduPilot Mega code is an autopilot for planes. Have a search for ArduCopter which is a controller for quads/helis based round the same hardware."
Jul 20, 2010
hopslink replied to Tom Yochum's discussion closed-loop software simulation with Flightgear and SciLab
"You seem to be covering most of the potential snags I can see. Curt would be far better placed to comment... My experience of the process was fairly painless. I started with 2.0, but found it would not run on my hardware so regressed to 1.91b.…"
Jul 19, 2010
hopslink replied to Tom Yochum's discussion closed-loop software simulation with Flightgear and SciLab
"Version 1.91b seems to be the most cooperative, based on feedback from the T3 round 6 thread and elsewhere. Are you configuring FG to accept packets at a higher rate than you actually feed, as that may be worth a go. Also do you set control surface…"
Jul 19, 2010
hopslink replied to Ken's discussion GPS with Mega?
"Sorry, that was slightly unclear. The GPS_NMEA setup function looks to simply set up ArduPilot. There is no code to initialise the GPS unit to the correct baud rate etc. I meant you would have to provide your own initialisation code to set the GPS…"
Jul 19, 2010
hopslink replied to Ken's discussion GPS with Mega?
"Ken, There doesn't look to be any code for EM406 in the mega libraries. You may get it to work in NMEA mode, but there is no specific initialisation code. You would need to do your own init to set the output to NMEA @38400."
Jul 18, 2010
hopslink commented on Tom Hastie's blog post Closed loop Simulation with X-Plane and ArduPilot
""X-Plane actually binds two ports - 49000 and 49001. It uses 49000 only to receive data, and 49001 only to send data (this is the difference from previous versions - it used to use 49000 to transmit and receive). These are hard coded into…"
Jul 17, 2010
hopslink commented on Tom Hastie's blog post Closed loop Simulation with X-Plane and ArduPilot
"Great work Tom! Tom Y, can you tell if the delay is in the SciLab or Flightgear side? And are you using a TCP or UDP link?"
Jul 16, 2010
hopslink commented on iangl's blog post EM406: busted!
"You're most welcome, but Ken deserves the credit for that one. Cheers Ken! All the best!"
Jul 12, 2010
hopslink commented on iangl's blog post EM406: busted!
"Jeff, The third one should be the charm... (hopefully). Apparently binary mode configuration requires a different message format. DIYDrones' Ken has supplied code to reset to NMEA mode - here. Attached below is Ken's reset code as a…"
Jul 12, 2010

Comment Wall (3 comments)

At 2:12am on May 9, 2010, Taylor Cox said…
Lol. Yea sorry about that. I couldn't tell if you were being sarcastic or not. The mods didn't delete the post, I did. I figured out how to change the modes. Thanks for the help :)
At 1:07am on June 12, 2010, Elhussein Abd Elkhalig said…
Dear hopslink's
I appreciate your efforts,
Are you able to fix the problem in the code of ArduIMU so that it can works with EM406.
In my UAV I am using (AP + Shield V2 + GPS EM406 + ArduIMU).
Waiting for your replay
Regards,
Elhussein
At 2:06am on June 12, 2010, Elhussein Abd Elkhalig said…
Thanks I will be waiting for the official post.
If I have to replace the EM406 with the recommended uBlox then I need to wait for shipping to UAE which take days

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