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Started by Marco C. Last reply by Marco C yesterday. 6 Replies

Hello,I was just wondering, how much current can a 14 AWG wire handle? can anyone explain and give further detais on this matter? MarcoContinue

quadcopter model dynamique identification

Started by telli khaled on Friday. 0 Replies

hello everybody I confused about quad-copter model identification , since the quad is unstable in open loop ,then how can I identify it since is unstable ??? but if I add a controllers in loop of…Continue

GPS Loiter holding issues

Started by Jeff Horton. Last reply by Jeff Horton on Thursday. 7 Replies

Im having trouble with getting the my quadcopter in loiter to keep its position.  It seems like its loosing the signal, but my gcs says the GpsHDOP is at .8 and there are at least 10 sats.  it will…Continue

tarot t4-3d gimbal compability with pixhawk

Started by Nichon. Last reply by Shawn McReynolds on Wednesday. 20 Replies

Anyone managed to get pixhawk to control the t4-3d gimbal?i've tried following the same steps in the wiki but that was for the 2 axis gimbal…Continue

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Comment by ShadowAir Ltd. on December 24, 2013 at 5:47pm

Removed as advertising.

Comment by Sean Headrick on December 24, 2013 at 12:40pm

I am a bit perplexed. I was helping to diagnose a problem on a friend's copter (quad) and found I could get nowhere without connecting to the APM through MP. I feel like I have a lot of experience with the APM but have not seen this. The yellow LED blinks as normal, but I get neither of the red or blue indicator leds. when I try to connect to MP i get a "No Heartbeats received" error message. I tried to connect through the CLI with no success. Would the yellow LED flash if the fuse was blown. Any suggestions are much appreciated.


Comment by Bob Kirkpatrick on December 23, 2013 at 12:27am

@Gunnar Baardsen  you have the right gimbal, that is the one I was talking about. I use mine with a Naza controller and the servos plug directly into the X channels and doesn't need an auxiliary gyro/IMU. he APM also permits this using any free channels for up to 3 axis control.(see

If you decide on the Alware, I suggest that you replace the all plastic servos with ones with metal gears and ball bearing shaft. I am noting some lash from wear appearing. Lately I have been flying a Nikon Coolpix LX810 and I think its weight is wearing out the inexpensive servos that came with the Swing.

Comment by Gunnar Baardsen on December 22, 2013 at 9:19pm


Is it this 2-axis gimbal you are referring to -

I read from the specs that they recommend the use of a gyro stabilization. I was under the impression that such a stabilizing feature is built-in with the APM 2.5, hence it's not needed with any additional hardware to control this gimbal.

Or am I wrong here?? I have a 3DRobotics quad (under rebuilding to a hexa these days) that I want to equip with this gimbal with a Canon S100 PowerShot camera.

3D Robotics
Comment by Chris Anderson on December 11, 2013 at 2:08pm

Lovely scenery! Now time for a stabilized gimbal;-) Embedding your video so others can enjoy:

Comment by Rob Avery on December 11, 2013 at 1:56pm

Using my APM 2.5 on a TBS Discovery w/ frsky 2.4 control, Immersion RC 600mw 5.8 and Fatshark Dominators, its taken a few months to get the bugs ironed out and flying (many crashes and about 3 vtx's), but it now flies nicely (though I'm a crappy pilot) thanks to this user group and many other fellow hobbyist. I am getting just over a klm of range with both video and control. Missions work great and loiter is finally stable.. see my quick video in Hawaii (apologies for the jello I have my gopro hardmounted in waterproof case for obvious reasons :) any questions feel free to ask, and again thanks to everyone who helped me :)

Comment by Tom Gates on December 11, 2013 at 1:51pm

Ok, I emailed 3d robotics, they tell me approximately 1 mile, line of site, with FlySky transmitter.

Thanks John

Comment by Tom Gates on December 10, 2013 at 10:49am

Yeah, I understand that, would like to have some idea of range. 1 mile, 2, any idea, even on just line of site.

Comment by John McGrath on December 10, 2013 at 8:43am

@tomgates They are correct your mileage will vary depending on terrain.

Comment by Tom Gates on December 10, 2013 at 7:45am


Anybody know what approximate range of the FlySky transmitter and receiver is with 3d robotics quad?

3d Robotics tells me the telemetry on board is good approximately a mile, more or less, given the terrain etc.

Tom Gates


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