• Male
  • Clarksburg, MD
  • United States

Harry's Friends

  • Martin Crown
  • Wallace Carvalho
  • Victor Sinatra II
  • Jean-Sébastien
  • Simon Atkinson
  • Charles lakins
  • Jeff Smith
  • UnmannedTechShop.co.uk
  • Jean-Louis Naudin
  • Anwar Ali Khan
  • Dr Mike Black
  • Greg Fletcher
  • Brian
  • wayne garris
  • Chris Anderson

Harry's Discussions

Artificial Horizon in processing 2.0

Started this discussion. Last reply by Harry Jan 14, 2014. 6 Replies

Using Quaternions

Started this discussion. Last reply by Harry Sep 30, 2013. 3 Replies

Arducopter 2.9.1b and MP 1.2.46

Started this discussion. Last reply by Harry May 17, 2013. 5 Replies

Harry's Groups


Harry's Page

Latest Activity

Harry commented on Gary Mortimer's blog post The Mexican immigrant who set up a global drone firm
"That's a tremendous success story, but why mention that he resented the green card process. My whole life I've been reminded that nobody owes me anything. Did he really resent the process or was that some gagootz writer trying to…"
Feb 23
Harry commented on Katrina Rosen's blog post Nice article in Gizmag reporting on Krossblade's SkyProwler
"I agree with you Andrew. I've seen some work on sailplane design and the optimum had a wide chord and kinda big span. It was compared to same area but higher aspect ratio and the fat chord won. This was in 100,000+ Re neighborhood where models…"
Feb 21
Harry commented on Chris Anderson's group ArduPilot (legacy) User Group
"I don't know why I still fool with this but I do. I'm running FreeIMU, outputting DIYd binary on a Flip1.5 instead of the ArduIMU. I added a I2C daughter board that sends the Ublox protocol to the Flip. It took me a while to figure out the…"
Jan 24
Harry commented on Mark Harrison's blog post The End is Nigh...
"If it's got wardrobe malfunction mode with realtime boobage log, then I say unleash the hounds."
Jan 11
Harry commented on Iain Butler's blog post How to Crash your Drone in 30 Seconds…….Or hopefully not with a little bit of information.
"Ohhhhhh, the Humanity!  This is the most horrible sight I've ever seen.  There's smoke coming from the wreckage and broken parts everywhere.  :-0"
Dec 26, 2014
Harry commented on Greg Nuspel's blog post Coaxial without swash plate
"Aaron, good explanation of where they need the pitch change and how speeding up and slowing down gets the blade to pitch.  Any idea how they know the location of the blade?   Tiziano, si, fewer motors is molto bene."
Dec 16, 2014
Harry commented on Greg Nuspel's blog post Coaxial without swash plate
"I also went to the site and still have a little trouble understanding how they control it.  The blades are hinged at an angle which means it will pitch as it swivels on the hinge - I get that part just looking at it.  To control the pitch…"
Dec 15, 2014
Harry commented on Chris Anderson's blog post Reverse-engineering the Hubsan/Estes nanoquad radio
"Some of "We" are becoming nerds.  I'm still playing with the original 328 based Ardupilot and haven't added a single improvement.  Oh well.  If you are what you eat, are you also what you hack?"
Dec 10, 2014
Harry commented on Trent at MyGeekShow's blog post USA Trip - Day 5 - The End
"The gremlin in the loop was serious that time.  The analysis ought to be very interesting."
Dec 6, 2014
Harry commented on Simon D. Levy's blog post The Extended Kalman Filter: An Interactive Tutorial
"I had a hard enough time understanding DCM and then Quaternions, but I did eventually understand enough to work with it and diagnose and correct problems in code.  If your tutorial can teach me, then it will be a success so keep it coming.."
Dec 5, 2014
Harry commented on Trent at MyGeekShow's blog post USA Trip - Day 4 - The Longest Day
"Murphy took a break and let the MP bugs get some flight time.  So far it's an epic struggle."
Dec 5, 2014
Harry commented on Riccardo Kuebler's blog post New materials to build moulded planes
"I've dreamed of making a molded plane from pulp.  It's good enough for eggs and electronics, so why not a small RC plane. Ever try to crush an egg carton?"
Dec 4, 2014
Harry commented on Trent at MyGeekShow's blog post USA Trip - Day 3 - First Flight!
"Murphy is always on board!"
Dec 4, 2014
Harry commented on Riccardo Kuebler's blog post New materials to build moulded planes
"There was a disposable drop tank in WWII made out of shredded paper and glue.  It held up long enough to fly a mission and drop it when empty.  It was way cheap compared to scarce metal.  I've done some experimenting with…"
Dec 3, 2014
Harry commented on Visual Micro's blog post New - Microsoft Visual Studio 2013 Community Edition (free)
"I couldn't get it to work with Atmel Studio, so I uninstalled that and installed Visual Studio and then Visual Micro.  It took hours but it works great.  I even built and uploaded."
Dec 2, 2014
Harry replied to Arthur Bayerlein's discussion Controlling APM using PWM signals from another Arduino
"That shouldn't be too hard, ha ha.  I mess around with code and do things I shouldn't if I had any sense.  Consider that a disclaimer for what I say, but I'd take a look at multiwii or even code for a PPM converter for…"
Nov 29, 2014

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This stuff is cool.

Harry's Blog

Flying my ArduIMU in tri_chord space

Posted on February 5, 2014 at 6:00pm 0 Comments

I haven't flown much of anything because of the weather, so I decided to see if I could do something different with my ArduIMU.  I decided that if I could get a MIDI port to read the IMU, I might be able to make music.

I used a VBscript to read the serial port and send pitch data from the ArduIMU to a slot.  I then used a MIDI program to record the…


The Next Sensor was Invented by Vikings

Posted on March 11, 2013 at 4:00am 2 Comments

There have been discussions before calling for reliable and accurate alternatives to GPS. The Vikings may have had the answer without knowing the physics. They were adept navigators at latitudes where frequent cloudiness and low sun angle(winter) could have made direct observation of the sun difficult. Legend has it that they had a magic stone, called a…


My Ardupilot(legacy) Platform

Posted on May 24, 2012 at 8:41am 8 Comments

Here's the plane I will install my Arduimu and Ardupilot(legacy) into.  I still need to build a motor mount and wind the motor.  It should be stable as it is based on a previous version which was very stable.  I'm aiming for 10-12 ounces AUW and around…


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