ArduCopter User Group

Discussion group for ArduCopter users

Members: 2501
Latest Activity: 17 hours ago

Discussion Forum

Capstone Search and Rescue Project. Help Needed to Finish!

Started by Talha A.. Last reply by Talha A. 17 hours ago. 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 yesterday. 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 yesterday. 21 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

Quadcopter X

Started by Umut TEKİN. Last reply by Candy S on Friday. 5 Replies

Hi everyone. I am new here. I have apm 2.6 and 3DR quadcopter x. I finished assemblying and setup arducopter programs to apm 2.6 via missionplanner. At last, i connect to battery and give the…Continue

Comment Wall


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

Comment by Leonard Ray Gunter on July 25, 2013 at 7:37am

@billbonney Thanks

Comment by Bill Bonney on July 24, 2013 at 11:21pm
Comment by Cao Zhang on July 24, 2013 at 10:26pm

A problem of the 500 helicopter at AltHold mode (APM 2.5+  V3.0.1),it shake .Please see the video  21sec and 30sec . No PID can be adjusted for improve this .___Video at here___

Comment by John McGrath on July 24, 2013 at 8:49pm

@SirPent Did you check your com port settings in your control panel and on Mission planner?

Comment by SirPent on July 24, 2013 at 7:14pm

hi all, i cant seem to connect to the apm2.5 via mavlink. it shows up like normal when plugged in but mavlink will not connect, even the leds seem to behave as they did normally. everything was working fine yesterday but now nothing.....i didnt change anything between flights it has me stumped...any suggestions? 

Comment by Leonard Ray Gunter on July 24, 2013 at 7:09pm

I am setting up an apm1 I can not  find the optical flow sensor test sketch ????

Comment by mark on July 24, 2013 at 2:07pm

Thanks @iskess. I just posted this there for those following this:


I have been working on my future arducopter for almost a month now mainly getting parts from various vendors in china, rctimer being one of them. In any case, I have run into what seems like a roadblock with the gps on this quadcopter as everything seems to be flashing pretty but nothing is registering in with ardupilot Mission Planner. I just get a "NO GPS'. So I am stumpped as to what to do with this.

I went through this great post (kudos to the author) and it helped a lot. I even did all the terminal setup reset ect.. but nothing.

I put a video up for those who have more knowledge that I do with this sort of stuff.

Any help would be much appreciated... Thanks in advance.

Comment by iskess on July 24, 2013 at 12:12pm
Go to this thread:
Read through post #6 and follow the instructions closely. If you still have issues afterwards, post on that thread.
Comment by Rohan Jain on July 24, 2013 at 12:05pm

Hi everyone, please spare a moment to look at this post.

I'm trying to get an idea about the kind of interest the DIY community would have in consumer applications.

Comment by Charles lakins on July 24, 2013 at 11:35am

no gps and gps lock are two completely different messages when the apm doesnt see it attached you get no gps or when your not connected to the apm mavlink protocol

when you are connected to the apm and have no lock it will read GPS: No Fix




Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Drone Delivery Challenge, is here

© 2015   Created by Chris Anderson.

Badges  |  Report an Issue  |  Terms of Service