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ArduCopter User Group

Discussion group for ArduCopter users

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Transmitter Loss failsafe

Started by Damo. Last reply by Damo 3 hours ago. 2 Replies

Hello,I want to setup failsafe for my Futaba T6EX tranmitter. I have been following this …Continue

Tags: arducopter

MavLink Failed: Getting Param... (sysid1 compid1) and then nothing...

Started by Oliver Volkmann. Last reply by Oliver Volkmann 10 hours ago. 10 Replies

This is weird. I am seeing my altitude, ground speed, yaw and vertical speed as well as my position in the Flight Data screen almost immediately after I click on "Connect" in Mission Planner however…Continue

Y6 not lifting off

Started by Ben Snyder. Last reply by Randy 20 hours ago. 19 Replies

I'm trying to get my RTF Y6 off the ground for the first time. I calibrated the ESCs, checked motor spin, ran the calibration wizard in MP (Turns out I had to run a virtual machine on my Mac to use…Continue

APM Failsafe

Started by Damo. Last reply by Reuben yesterday. 7 Replies

From my work in attempting to figure out Failsafe i see that the APM ALWAYS treats the throttle channel as the failsafe channel i.e RCMAP_THROTTLE in the full parameter list. Can i change what…Continue

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Comment by Sean Headrick on January 3, 2014 at 10:25am

@Essam As you are new to this technology, you may be overlooking the possibility of photo-stitching. In general terms this would allow you to take lower altitude, higher resolution images that could then be stitched together into a single flat image or into an actual 3D orthomosaic based on common points among the images or GPS tagging. It is still a pretty large area, but a fixed wing outfitted properly should be able to satisfy your requirements

  

Comment by Charles lakins on January 3, 2014 at 10:20am

I wouldn't say altitude is your problem until it comes to the camera resolution and filtering capabilities any craft given the amount of flight time required will perform the needed altitude and allow you the decent time to land too

 

to achieve the filtering required are there limits to distance to be effective ?

my concern is the farther away the less likely to get results usefull

Comment by Alan Jump on January 3, 2014 at 10:16am

@Essam Your operating altitude is going to depend on the field of view of your selected lens. If you need the camera to capture a single image to cover 120 acres, and your lens has a 38 degree viewing angle, my maths say you'll need to fly at around 2200 feet AGL. A wider-angle lens will reduce that altitude, but may distort the image.

Comment by Essam on January 3, 2014 at 10:02am

Hi everyone; Happy new year. I am new to this field but I am interested in building my own uav using this site support. The reason I need a UAV is for my agricultural research. I need to be able to capture a 120-acre field in one single shot/photo using a near infrared capable camera. I need near infrared because it helps identifying stressed vegetation (I would need both the red and near infrared reading to do this). I am concerned that I may need to fly too high to be able to see a 120 acre field in one shot; in this case what uav design/model would allow me to accomplish this task? I am thinking of buying a small camera and modify it so that it can capture both the red and near infrared area of the spectrum. I am on a small budget so not looking to spend thousands; especially on my first uav.. Many thanks

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 http://copter.ardupilot.com/wiki/camera-mount/

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

@BobKirkpatrick

Is it this 2-axis gimbal you are referring to - http://www.alwarerc.com/shop/swing-2axis-camera-mount-p-67.html

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 :)  http://youtu.be/tdV1w0lNKU0 any questions feel free to ask, and again thanks to everyone who helped me :)

 
 
 

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