About Me:

Chief of Research

Please tell us a bit about your UAV interest


Activity Feed

Hopper commented on Neuro's blog post My Nexus7 TX mount
"Great hack Neuro! I like the way you attached to the transmitter handle. Looks really stable. And the cost is low enough for anyone to adopt. The velco approach allows it to migrate to other tablets. Looks like it would be easy to add an analog…"
Jan 8, 2014
Hopper commented on Jeff L's blog post My Nexus 7 transmitter mount.
"@Jeff: Nice out-of-the-box thinking there. I tried to come up with a good way to attach to the back handle with no luck. Plexiglas and hairbands - love it!

@Glenn: nice integration of video!"
Jan 1, 2014
Hopper posted a blog post
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…
Dec 31, 2013
Hopper replied to Amos Olson's discussion Y6 Power Layout...?!?!?!? in Arducopter Y6 Owners
"I too tied my ESC's on the sides of the inner end of the rods (velcro straps for now). You just need to ensure the wires can't poke up into the path of the props.

I'd like to see the PDB board integrate the ESC's directly into it. Make them…"
Oct 1, 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.
Feb 20, 2011
Hopper posted a photo
Benchtop Environment
Feb 20, 2011
  • 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.

    Mohamed: AC->DC benchtop power supplies eliminate batteries while…
    Aug 15, 2011
Hopper posted photos
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