Pete Hollands
Pete Hollands
  • Male
  • Reading
  • United Kingdom
Share Twitter

Pete Hollands's Friends

  • Hart Joris
  • Nick Arsov
  • John Galczynski
  • Andrew Tridgell
  • Joseph Lai Ho Yeung
  • Jan Martin
  • robert bouwens
  • Martint BuildYourOwnDrone.co.uk
  • Anish
  • Pedro Zambrano
  • Jeremy
  • Matthew Tang
  • DODY
  • Hyeon Gab, Shin
  • Vassilis Fotinopoulos
 

Pete Hollands's Page

Latest Activity

Profile Icon
Pete Hollands commented on Nick Arsov's blog post 'A new autopilot arrived - ARSOV UAV Board V1.1'
Which when put through Google's translation system reads:- Congratulations on the new board, Mr. Arsov! All the best in the future, Dimitar
Feb 8
Profile Icon
Pete Hollands commented on Nick Arsov's blog post 'A new autopilot arrived - ARSOV UAV Board V1.1'
Nick, so it could be the AUAV1_BOARD as in .... (Arsov UAV no. 1 Board) ////////////////////////////////////////////////////////////////////////////////// Set Up Board Type// GREEN_BOARD - Board is green and includes 2 vertical gyro…
Feb 8
Profile Icon
Pete Hollands commented on Nick Arsov's blog post 'A new autopilot arrived - ARSOV UAV Board V1.1'
Hi Nick, it's nice to have the option of using such a small board. Thanks for designing it ! By the way, Do you think the board will also support the Ublox providing the user also uses the DIY Drones adapter (for ublox to EM406A) ? …
Feb 7
Profile Icon
Pete Hollands commented on Doug Weibel's blog post 'Difficulty with using Ultrasonic Ranging (Sonar) for landing flare control.'
Doug, we are sampling the accelerometers 200 times for each "frame", integrating (or adding up) all the values, and then averaging the summation (dividing by 200). This is all timed to complete, just before the averaged accelerometer value…
Feb 2
Profile Icon
Pete Hollands commented on Doug Weibel's blog post 'Difficulty with using Ultrasonic Ranging (Sonar) for landing flare control.'
The UDB / MatrixPilot  does the double integration to create what we call High Bandwidth Dead Reckoning (HBDR) using DCM++ (Bill Premerlani's original DCM algorithm much improved by Bill).  The print out of location is called…
Feb 2
Profile Icon
Pete Hollands commented on Doug Weibel's blog post 'Difficulty with using Ultrasonic Ranging (Sonar) for landing flare control.'
Doug, nice work again. Thanks for sharing, Pete
Jan 31
Profile Icon
Pete Hollands commented on Doug Weibel's blog post 'Difficulty with using Ultrasonic Ranging (Sonar) for landing flare control.'
Hi Doug, Thanks for publishing the graph, which is of great interest (for landing flares). What speed were the passes done at ? (being a skyfun they might have been quite fast.) And what precautions, if any, did you take, for reducing the noise of…
Jan 29
Profile Icon
Pete Hollands replied to Chris Anderson's discussion 'Discussion forum for UAVDevBoard, Sparkfun's 3-axis IMU-based autopilot board'
Matt, I suggest switching off the -legacy-libc option and seeing if the code then compiles. I enclose a link to a of the screenshot of the window where you can change that option. Click on "Inherit Global Setting", which you will see…
Jan 19

Profile Information

About Me:
Experienced model builder, and experienced in I.T.
You can see pictures of my UAV Devboard project here.

And videos of the project are here.

I have been writing software to capture telemetry from the plane, and plot it's "intentions" and resulting position in the sky. An example is shown below.

From UAV Devboard
This is the setup of plane, radio and laptop that I'm using for now.
From UAV Devboard

Pete Hollands's Blog

Pete Hollands

DIY Drones T3 racing in Venice

Posted on November 17, 2011 at 12:55am 18 Comments

What's going on here? This is a "Virtual Venice UAV race". It's based on the DIYDrones T3 figure of 8 competition.

The screncast's purpose is to show how pilots can potentially fly their planes in different parts of the world, and then have their geo position and time base altered so that they end up racing side by side in Google…

Continue
Pete Hollands

MatrixPilot 3.1 Released

Posted on June 29, 2011 at 7:00am 10 Comments

 

MatrixPilot 3.1 is released. The project continues to mature, with a fantastic IMU that is still moving ahead with deep research from William Premerlani. Ben Levitt continues to add amazing features such as the built-in firmware for the OSD hardware that can be attached to the UDB3.…

Continue
Pete Hollands

Reduced Yaw Drift / Fast Gyro Sampling with the UDB / MatrixPilot

Posted on January 28, 2011 at 8:07am 23 Comments



Reduced Yaw Drift / Fast Gyro Sampling with the UDB / MatrixPilot from Pete Hollands .

[Note: Apologies for the low sound volume in this video. Please turn your volume up.]

This is a demonstration of the reduced Yaw Drift which is possible when sampling the gyros at 30,000 times / second (Thanks to William Premerlani for this R&D and code).  Using QGroundControl and…

Continue
Pete Hollands

Testing a DIYDrones magnetometer in HK's GCS

Posted on December 6, 2010 at 11:48am 34 Comments

Testing a DIYDrones magnetometer in HK's GCS from Pete Hollands on Vimeo.



I test the DIY Drones magnetometer ( HMC5843 magnetometer breakout board ) using Happy Killmore's Ground Control Station connected using SERIAL_UDB_EXTRA telemetry format, to a UAV DevBoard V3 running

MatrixPilot (revision 729 of trunk).



photos:…

Continue
Pete Hollands

Camera Targeting with MatrixPilot and the UAV DevBoard

Posted on October 21, 2010 at 1:37am 20 Comments





Matrix Pilot Camera Targeting: Tree Test - Software Stabilized



Strategy: Have MatrixPilot / UAV DevBoard (UDB) point camera roughly in the right direction.

Take out the jitter movement using software stabilization.



The above flight was flown on a day with 10mph of wind, with a lot of turbulence (I included the landing in the video to show the…

Continue

Comment Wall (1 comment)

At 2:08pm on April 23, 2010, Vassilis FotinopoulosVassilis Fotinopoulos said…
Congratulations!

You need to be a member of DIY Drones to add comments!

Join DIY Drones

 
 
 

Groups

© 2012   Created by Chris Anderson.

Badges  |  Report an Issue  |  Terms of Service