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

  • Martin Crown
  • Wallace Carvalho
  • Victor Sinatra II
  • Jean-Sébastien
  • 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. 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 Page

Latest Activity

Harry commented on John Githens's blog post Multirotor used near Vancouver International Airport and Vancouver Harbour
"He seems to like to travel the world.  You'd think he'd have a few more miles of respect for air safety."
yesterday
Harry commented on Gary Mortimer's blog post Don't mess with Texas Equusearch
"The FAA could ease their own pain by saying it's not their problem below 400 feet and so many miles from an airport and leave it up to each State.  "
yesterday
Harry commented on Gary Mortimer's blog post Don't mess with Texas Equusearch
"I'm all for regulation, regulation of government.  Think about that every time you say "they" must do something.  "
yesterday
Harry commented on Víctor Mayoral's blog post Erle Robot, the educational drone
"I like it! "
Monday
Harry commented on The UAV Guide's blog post Announcing The UAV Guide
"I play with code and the biggest hurdle for me is understanding various protocols like i2C, Spi and how to set them up and use them.  Timing is another issue and how to break tasks up into multiple loops.  Interrupts, registers, and…"
Monday
Harry replied to palo sestak's discussion How to reverse yaw control on Tri-copter
"I can confirm your solution is how I did my tricopter. "
Saturday
Harry commented on Chris Anderson's blog post How we do autopilot vibration-testing at 3DR labs
"I use a 1/2 inch thick slab of modeling clay wrapped in masking tape for the mass and the damping. "
Saturday
Harry commented on Chris Anderson's blog post How we do autopilot vibration-testing at 3DR labs
"You guys don't need that test rig, I'll sell you my tricopter with the slightly twisted arm and out of balance props.  It looks like it shakes about the right amount.  It flies the APM like a champ."
Saturday
Harry commented on Vindolin's blog post Tech-savvy criminals now using heat-seeking drones to target cannabis farms
"Hmmmm, there's just no honor among thieves these days."
Apr 18
Harry commented on Monroe Lee King Jr.'s blog post The Coanda Effect and a cool UAV using it.
"There was an RC toy sold years ago that had a foam bladed rotor on the outside and a regular prop on the inside.  The outside rotor turned counter to the motor driven prop and up it would go. "
Apr 18
Harry commented on Brandon Frazer's blog post UAV and UAV Landing Platform close to completion!
"That ground vehicle is freaky the way it changes direction."
Apr 17
Harry commented on Chris Anderson's blog post Ohio drone user charged for obstructing an accident scene
"If you fly the simplest RC, at some point you'll need to be a repairman."
Apr 16
Harry replied to Khalid Saeed's discussion FreeIMU, how to get gyro rates and accelerometer reading
"Good job!  I found this comment in the MPU60X0.cpp   [quote]  * FS_SEL | Full Scale Range   | LSB Sensitivity  * -------+--------------------+----------------…"
Apr 15
Harry replied to Khalid Saeed's discussion FreeIMU, how to get gyro rates and accelerometer reading
"What happens if you divide the accel values by 4096?  Do they then look like +/- 2g values?"
Apr 15
Harry replied to Khalid Saeed's discussion FreeIMU, how to get gyro rates and accelerometer reading
"Khalid, I loaded the FreeIMUraw.pde and took a look.  I'd say it depends on how FreeIMU sets up the sensors so I took a look in the library MPU60X0.cpp file and the header file.  FreeIMU.cpp is using the #define…"
Apr 15
Harry commented on Chris Anderson's blog post FAA vs Search-and-Rescue drones
"What we need is more people like Trappy, willing to conduct their own particular operation for profit without waiting for big brother to give them the go ahead.  And when big brother gets angry that some of the sheep refuse to go in the…"
Apr 12

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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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