Comments

• SirPent 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? 
• Leonard Ray Gunter July 24, 2013 at 7:09pm

  I am setting up an apm1 I can not  find the optical flow sensor test sketch ????
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  mark 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.
  
  https://www.youtube.com/watch?v=3XchFe_zFBw
  
  Any help would be much appreciated... Thanks in advance.
  --mark
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  iskess 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.
• Rohan Jain 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.
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  Charles lakins 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

  

   
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  Wayne Morris 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. 
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  John McGrath July 24, 2013 at 10:05am

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