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Calling all Custom Multi-Copter Pilots!

Started by Forrest Frantz. Last reply by Jon Turner 3 hours ago. 4 Replies

I'm going to do what is called a "pull" to made changes to the custom code regarding custom shaped copters.  This change in code would only impacts irregular shaped quads, hexas, and octas when the…Continue

strange behaviour of pixhawk-request help to understand

Started by moriarty. Last reply by moriarty Jan 6. 2 Replies

HiI am building a 1300mm octocopter with 30AH lipo. I want to be using a tegra tx1 for onboard visual processing coming from a sony a6000. I have built the drone and assembled it. I have configured…Continue

Motors spin slowly at min throttle on Arm

Started by Naren. Last reply by Bill Isenberger Dec 2, 2017. 23 Replies

I have calibrated the ESCs, installed the latest firmware and followed setup procedures by the book; The props start spinning the moment the APM is armed. I am using the APM 2.0 with a 3.1 Arducopter…Continue

Position Hold wont stay in position

Started by Edgar Scott. Last reply by Terry Nov 25, 2017. 31 Replies

I have been using stabilize, wanted to try position hold to see if it will at least stay in my back yard and it wont, it drifts off almost hitting fences and plants.I know the GPS works well because…Continue

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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:

Hi,

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.

http://www.youtube.com/watch?v=3XchFe_zFBw

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

Comment by iskess on July 24, 2013 at 12:12pm
@Mark,
Go to this thread: http://www.rcgroups.com/forums/showthread.php?t=1820773
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. http://diydrones.com/forum/topics/guaging-diy-community-interest-in...

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

 

Comment by Wayne Morris on July 24, 2013 at 10:25am

@Mark, if you look at the board with the motor outputs facing you, Just above the motor outputs is a two pin jumper. I don't know if you put the header in or not. This bridges the ESC power side to the rest of the board. I went to look at the rctimer site and their photos has the header and jumper included and the board shows the connection as JP1.

My GPS does not get satellite GPS lock indoors. The No GPS on the planner means you don't have lock. The GPS maybe working fine but you can't lock inside. Take it outside and wait several minutes. The GPS should find the satellites and you will then see GPS lock on the MP. 

Comment by John McGrath on July 24, 2013 at 10:05am

@Oliver  thanks buddy I appreciate that info. Always learning :-)

Comment by Oliver on July 24, 2013 at 8:43am

@John McGarth

John, if the hex isn't level on the ground or if it has been rotated after arming the motors may spool up quite differently from one another as the craft is trying to orient itself, very noticeable if you are applying only a little throttle. The test is to spool up to where the hex is light on its feet, or even just lifts off. If there is indeed a problem you'll know it then. I got spooked by the same thing early on.

Comment by John McGrath on July 24, 2013 at 8:21am

Ok just brought the Hex into the shop hooked everything up again to diagnose issue and the motor works 100% i tapped on the esc etc etc.. seems to work fine.. A possible glicth with the apm? Interesting.

Comment by John McGrath on July 24, 2013 at 8:11am

Need a little help here. I have a month old Hexa from 3Dr. I was testing my gimbal this morning and when I when to launch one of the motors was not spinning much should I look at the motor going out or esc?  A month old not good at all.

 
 
 

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