Harry
  • Male
  • Clarksburg, MD
  • United States
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Harry's Discussions

Artificial Horizon in processing 2.0

Started this discussion. Last reply by Harry Jan 14. 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 Chris Anderson's blog post Obama to issue drone privacy Executive Order
"Told ya the Commerce Dept.  If they acknowledge and yield to the right of an individual to make a buck with an aerial camera, then great they can stick around a little longer.  If all they want is more income, the people still reserve the…"
17 hours ago
Harry commented on Chris Anderson's blog post Time: "Here's why so many drone pilots are getting in trouble" (they're not RC folks)
"There has never been a shortage of idiots, ever.  Look at the pile of laws and somehow the idiots always crawl out from under it.  The power mad elite keep making the pile higher and wider too and all it does is punish everyone else.…"
yesterday
Harry commented on Chris Anderson's blog post Legendary Java creator James Gosling at "Friday Funday" 3DR open house
"That Liquid Robotics company is pretty cool.  It must be nice!"
yesterday
Harry commented on Chris Anderson's blog post Greenpeace video imagines a future of robot bees, after the live ones are gone
"First it was killer bees radicalizing honey bees and then it was some pest causing colony collapse.  They say we're doomed but we aint dead yet.  Put a honey bee colony on every public building and maybe there will be enough survivors…"
Jul 7
Harry commented on Yury Matselenak's blog post Advanced hard and soft iron magnetometer calibration for dummies
"Thank you, Yuri.  It's working now.  I rotated it 90 degrees and ran the calibration again.  It's brilliant."
Jun 29
Harry commented on Yury Matselenak's blog post Advanced hard and soft iron magnetometer calibration for dummies
" "
Jun 29
Harry commented on Chris Anderson's blog post Wall Street Journal: "Drone Dogfight: Big Defense Firms vs The Techies"
"I don't know about pathetic, that original Ardupilot works with a good GPS and an IMU.  I'd say the start was impressive even if it didn't have every trick in the book.  "
Jun 28
Harry commented on Yury Matselenak's blog post Advanced hard and soft iron magnetometer calibration for dummies
"Man, this is a brilliant program.  Thanks for offering it.  I have a board with the HMC5883L and I got my matrix and bias and I'm working on using the example code.  I like how you have a diagram for each position.  That…"
Jun 28
Harry commented on Rob Thompson's blog post The Importance Of Flying A Basic System, How To Progress In UAV
"I'm flying a tricopter I built and I've spent lots of time repairing it.  I found every single weak spot the hard way.  Right now it has a MultiWii on it but it has flown the Ardupilot.  I've tried all kinds of code too…"
Jun 24
Harry commented on Gary Mortimer's blog post Chris Anderson speaking at sUSB Expo 14
"How long before we see the 3DRobotics phone?  It slices, it dices..."
Jun 18
Harry replied to Tobias Simon's discussion Madgwick IMU/AHRS and Fast Inverse Square Root
"I have to retract that a bit, FreeIMU uses the Madgwick AHRSupdate and is just as good as DCM, if not better and is about the same size in memory.  I'm testing it now and it has none of the molasses effect that my attempt did.…"
Jun 11
Harry replied to Tobias Simon's discussion Madgwick IMU/AHRS and Fast Inverse Square Root
"I'm playing with a board that has an mpu60X0 and shoehorned the Madgwick algorithm onto it with a lot of trial and error.  You guys are talking about overshoot and I have undershoot/lag.  I increased the integration time and it almost…"
Jun 11
Harry commented on Roger Sollenberger's blog post The Tale of BeaglePilot: The world’s first Linux-based autopilot
"I've got this old 386 laptop and it even has a math coprocessor, so when will hackaday show me how to strip all the extra junk and mount it on a quad?   It's a semi-serious question.  I just took the cover off and I see the…"
Jun 5
Harry commented on Jethro Hazelhurst's blog post Balancing Carbon Fiber Props : The Right Way!
"I use tape too.  I don't have a balancer so I take a WAG and add a small piece of electrical tape.  If it makes it worse, I remove it and add it to the other blade. If that's better, I fine tune it by working that blade.  It…"
Jun 3
Harry commented on Roger Sollenberger's blog post Congress: “FAA may not be well positioned to manage the introduction of UAS.”
"The Commerce Dept, otherwise known as the Dinosaur of Constitution Ave., was actually where the FAA started.  They've got their dirty hands in all kinds of things.   "
May 28
Harry commented on Colin Snow's blog post Which is Better: Open Source or Proprietary Drone Software?
"Closed means no opportunity to learn anything except how much does it cost.  "
May 24

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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…

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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…

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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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