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About Me:

Chief of Research


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R&D


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Hopper posted a blog post
GoPro parts used to mount Tablet onto RC Transmitter
Here's a hack that worked pretty well for me. Thought I'd share the how-to.I leveraged some leftover GoPro parts to mount my tablet onto my radio:I used the two sticker based helmet mounts (1 on RC Transmitter, 1 on tablet) and the "3 way pivot…
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Dec 31, 2013
Hopper commented on Joshua Ott's blog post Thirty days behind the scenes at 3DR. May 1
"1. Test jig for testing telemetry modules prior to shipping. Send test data out 1 antenna, check receive on others. Repeat for each antenna.
2. MIMO implementation for telemetry modules. Extends range and reliability.
3. Full-duplex telemetry using…"
May 1, 2013
Hopper commented on Matthew Coleman's blog post A challenge - An autopilot to fit in this
"It gets pretty lonely doing those one off board developments.  It is all too easy to branch off into an oblivion of code hacking.

I couldn't agree more, Matthew. I purchased the ardupilot board and a razor. Then noticed that everyone was running…"
Mar 5, 2011
Hopper commented on Matthew Coleman's blog post A challenge - An autopilot to fit in this
"You might be able to squeeze a Femtoduino (http://www.varesano.net/projects/hardware/Femtoduino), Razor IMU (http://www.sparkfun.com/products/9623), and a GS407 GPS (http://www.sparkfun.com/products/9436) into different areas of your airframe. You…"
Mar 5, 2011
Hopper replied to Nicholas Tilbury's discussion Recommended Tx/Rx
"I was about to settle on the Spektrum DX7 until I did a bit of research on Airtronics. It's been around a long time, has a loyal fan base, costs less than $200 for 8ch tx and rx (RDS8000), and has the 3 position switch. I got mine at…"
Mar 2, 2011
Hopper replied to eyesopen45's discussion Ardupilot Mega v1.4 problems
"I'm getting similar results. I've got a 1.4 board. Everything works great when the USB is connected. However, if I try to power it via the ESC only, it never boots (no ABC LED activity). I get power LED, servo twitching, blue LED activity.
 
I've…"
Feb 20, 2011
Hopper posted a photo
Benchtop Environment
Benchtop Environment
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Feb 20, 2011
Comments: 3
  • Hopper Sorry I haven't been real active lately fellas. Here's answers to your comments:

    Ron: Thanks!

    Jose: it's the Sky Surfer from Banana Hobby.
    http://www.bananahobby.com/1937.html

    Mohamed: AC->DC benchtop power supplies eliminate batteries while…
    Aug 15, 2011
Hopper posted photos
12 more…
Jan 27, 2011
Hopper commented on James Cann's blog post I can't help it...It's an illness I tell you...
"I had a similar thought a couple years ago. Used foam poster board for the airframe. Initially tried two fans on paddles and quickly discovered the need for two more.
 

 
Added two more fans but they were only supported by whimpy axels and quickly…"
Jan 14, 2011

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