Greg Fletcher
  • Male
  • Gardner, IL
  • United States
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Greg Fletcher's Groups

Greg Fletcher's Discussions

Eagle files for APM 2.5?

Started this discussion. Last reply by Chris Anderson Aug 30, 2012. 3 Replies

latest java update and Arduino problem

Started this discussion. Last reply by Greg Fletcher Jul 4, 2012. 2 Replies

Happy's IMU test and APmega

Started this discussion. Last reply by Paul Mather Apr 15, 2011. 4 Replies

 

Greg Fletcher's Page

Latest Activity

Greg Fletcher commented on Sokil.aero's blog post SokilLink all-in-one wireless link
"Looks like a nice unit. If it is reliable you will sell a lot of them. This may be a dumb question, but is the wifi link encrypted? Have you measured the latency of the video link?"
Jul 15
Greg Fletcher replied to Augusto Lombardi's discussion my First question
"I like the Storm32 controller. You can get one for ~70 - 80 USD from China, that's with a gopro sized gimbal! I haven't really used other types. There's lots of  gimbals that size for ~ $200, if you want motor encoders you will…"
Jul 3
Greg Fletcher commented on Marco Robustini's blog post "Rescue FC" - integrated safety system suitable for unmanned aerial vechles
"How many channels from the 2 FC's are switched? A high value payload/mission were redundancy is important will have 8 motors plus auxiliary channels. "
Jul 3
Greg Fletcher replied to Charles Linquist's discussion STORM 32 Gimbal doesn't work
"Well, you have some reading to do! Gimbals don't just work you need to calibrate the accelerometers, physicaly balance the gimbal mechanism, do an auto detect to get all the motors going the right way. And about the connections, I really…"
May 30
Greg Fletcher replied to John Longland's discussion RTL function on pixhawk in the group PIXHAWK
"Yes the mode channel must stay in RTL. If the mode channel changes the new mode will be selected. If RTL mode was the result of a low battery or radio lose it will stay in that mode even when the radio is working again. The mode switch must change…"
May 26
Greg Fletcher replied to Preamble's discussion Asking for experienced advice on Tlog first flight HEX YAW IMU issue in the group Pixhawk 2 User Group
"The clockwise motors,1,3,6 are less power than the counterclockwise,2,4,5 motors. It is compensating for an inherent yaw in the airframe. I am assuming you have clamp type motor mounts and tube arms. Check that all the motors are on the same plane,…"
May 13
Greg Fletcher replied to steven Choi's discussion Why my copter keeps drifting
"From your picture I can see that it is installed correctly with the yellow arms being the front. Also the fact that is flying means it is the correct orientation, otherwise it would flip over. I think what you need to do is reverse the pitch…"
Mar 18
Greg Fletcher commented on Graham Dyer's blog post 450 Wh/kg SolidEnergy batteries, the lightest rechargeable cell in the world?
"Probably real good for a efficient long endurance fixed wing, but not so much for a copter. While the energy density doubles, the maximum C rating is one fifth of the best copter batteries, only 2C. You would still be pushing C limits, but my 650…"
Jan 30

Profile Information

About Me:
This field under construction
Please tell us a bit about your UAV interest
aerial photography and fpv video.
Hometown:
Gardner IL

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Comment Wall (5 comments)

At 1:54pm on May 7, 2012, Amilcar Lucas said…

Hi there Greg,

Yes, I'm still working on the camera stuff, but not as mutch as I would like.

The most recent version of the code is in the APM_Camera git branch.

It contains libraries to control the mount (AP_mount) and the camera (AP_Camera)

There is also some documentation on the wiki.

It would be nice to join efforts.

At 1:20pm on May 9, 2012, Amilcar Lucas said…

Hi Greg,

Yes please send me the files I will take a look at it.

At 1:41pm on June 3, 2012, Carl La France said…

Hey Greg Go to my page and look at my photos this is not my first experience with air foils

Thanks for the comment! You have a Great Day!

At 1:18am on June 12, 2012, Carl La France said…

Hey  Greg ! It hit me while I was sleeping tonight and woke me up ! Getting baby scale is an Excellent idea! not just to weigh the plane but if I get one that shows ounces and fraction of ounces I can weigh each item and figure it's moment before I put it in the plane and help figure the best spot for it from the COG + or - and keep the trimming ballast to a minimum. the rest of the plane will be foam  I have been looking at power plants and might do Something Novel ? I am aiming for  a take off weight of 4 1/2 to 5 pounds  if I get a power plant out of something 7 to 10 pounds it should be lots  Thanks! Have a Great Day!

At 10:59am on August 25, 2012, Shyam Balasubramanian said…

Hi Greg,

I read your posts that you have made a camera gimbal stabilizer. I work on Arduplane source code, with the APM-1 board, attaching 2 servo to work out solution for 2-axis stabilizer. It will be helpful if you could share your source so that I can have a look at it to get a better idea !

Regards,

shyambs85@gmail.com

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