Information

ArduCopter User Group

Discussion group for ArduCopter users

Members: 2503
Latest Activity: 1 hour ago

Discussion Forum

Arducopter kept yaw-ing and crashed

Started by Kristiyan Kostadinov. Last reply by Euan Ramsay 7 hours ago. 5 Replies

hey guys, anyone here that could help me understand why the copter kept yaw-ing and yaw-ing for 5minsuntil the wind pushed it and started spiraling and ended in a power line pole ?(lost all…Continue

Capstone Search and Rescue Project. Help Needed to Finish!

Started by Talha A.. Last reply by Talha A. on Saturday. 47 Replies

I had initially raised this question in Arducopter 2.x group yesterday but since no one replied and I really need help, I am posting this question in the Arducopter User Group.Here is the situation:I…Continue

Tags: EKF, APM, Compass, GPS

Question about 3 Important Parameters

Started by Ehsan Zibaei. Last reply by Ehsan Zibaei on Saturday. 5 Replies

Hi friends!I'm doing an experiment with APM and I need to know the order of magnitude of these parameters: 1. Noise of accelerometer and gyros. 2. Time delay between sending a waypoint to autopilot…Continue

GPS errors occur in Auto

Started by Edgar Scott. Last reply by Doug Walmsley on Friday. 19 Replies

for some reason I seem to get a lot of GPS errors in Auto mission.Im not really sure what's going on but from log I think the GPS may be getting an error?Also seems to have a flight more errorAPM…Continue

Comment Wall

Comment

You need to be a member of ArduCopter User Group to add comments!

Comment by Andrew McKinstry on December 17, 2012 at 7:33pm
Hmm. 3DR sold me the unit with motors installed and also ordered the large prop from them@ same time..

JDrones
Comment by Jani Hirvinen on December 17, 2012 at 7:00pm

Andrew. Looks like you have a big problem. I am not sure if 3DR frames are designed for big motors and big propellers but way how they are in your hexa is bad and you cannot use it like that. all jDrones frames are fully tested with 12" propellers. I would suggest to use only 10" props on that your current hexa.

Comment by Andrew McKinstry on December 17, 2012 at 10:10am

Hello.. Shiny new hexa with all the toys about to leave bench (I hope).. however prop clearance issue! Or am I missing something.. 880 motors 11x4.7 props

thanks

Comment by avionics on December 9, 2012 at 9:45am

2012-12-09%2020-01-10.tlog

 

Hi Guys

I was in the middle of tuning for my Loiter and suddenly the quad started coming down out of control and crashed. Luckily no damage but it went out of control. this is the log i appreciate if any one can help and see what went wrong. thanks

 

2012-12-09%2020-01-10.tlog

 

Comment by avionics on December 7, 2012 at 8:16am

OK I got the Loiter going almost good. I had problem with my CH_6 knob on TX. fed the info directly from the ground station. all good for now. Thanks.

 

Comment by avionics on December 6, 2012 at 10:26pm

@Randy

Randy thank you for the response. Frankly I dont really know what to look for in the log. any idea what i should expect in the log? sorry I have never done this before.

Comment by Randy Brazeau on December 6, 2012 at 11:38am

@Avionics

Have you reviewed the logs? That would be a good starting point to see what is happening.

Randy

Comment by avionics on December 6, 2012 at 11:04am
I have a H.A.L quad by hobby king with 1200kv motors and freshly assembled. It flies beautiful in stablise and alt Hold and when i try to loiter it doesnt hold its position. The GPS both LEDs are locked and steady before i start. It drifts and loses altitute very slowly. Tried playing with PIDs but no luck. I ran out of ideas appreciate if anyone can throw some light. Does the WP loiter config PIDs have any effect whilst on loiter or it is only for when on Auto mode? Thanks for the help in advance.
Comment by Chris Gough on November 29, 2012 at 1:36am

@Shayam, if you want to experiment with quaternions, DCM, euler angles, etc. you might want to check out the various pluggable AHRS subsystems in paparazzi.

http://paparazzi.enac.fr/wiki/Subsystem/ahrs

Comment by Shyam Balasubramanian on November 29, 2012 at 1:24am

@Randy, Thanks for that nice explanation on accelerometer with quads! Now, my understanding gets better.

I would want to try out Quaternions once myself, it seems different people are having different opinion. My friend, who works purely on Quad uses quaternion. He mentioned to be that it was 'much' faster than DCM. But, since truth is one but scenarios differ, I will ask him if he can lend me some benchmarking ;)

 
 
 

© 2015   Created by Chris Anderson.

Badges  |  Report an Issue  |  Terms of Service