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Pete Hollands
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  • Reading
  • United Kingdom
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Latest Activity


Developer
Pete Hollands commented on Gursharan kumar's video
Thumbnail

UAV Software Simulation in XPLANE by MechRobotics

"Thanks for sharing. Best wishes, Pete"
May 1

Developer
Pete Hollands commented on Matthew Coleman's blog post Fly-by-polar
"Whereas the UDB4 has 30Kbytes  of data memory (Matt is using 6K of that), and 170Kbytes of Program Memory (My own Typical MatrixPilot trunk build uses 50K of that)."
Apr 30

Developer
Pete Hollands commented on Georacer's blog post Hill Cruiser - An RC Model Autopilot
"@Georacer MatrixPilot orientation is still based on the DIrection Cosine Matrix (DCM). Since the original implementation, some of theimprovments have been made by Bill are:- Automatically estimate the wind without necessarily having a Pitot, leading…"
Apr 27

Developer
Pete Hollands commented on Georacer's blog post Hill Cruiser - An RC Model Autopilot
"One small correction: MatrixPilot does not require movement in order to fix it's yaw orientation. That is only the case, if the plane only has  GPS unit and no magnetometer. But there has now been magnetometer support for a long time. You…"
Apr 27

Developer
Pete Hollands commented on Bertrand Duchiron's blog post Eurocopter OPV Optionaly Piloted Vehicle
"Video of the Autonomous Flights here"
Apr 25
Robin Szeto commented on Pete Hollands's blog post Demonstration of Adaptive Control
"http://playground.arduino.cc/Code/PIDLibrary There is PID and Auto tune PID library in Arduino! Anyone tried it before?"
Jan 27

Developer
Pete Hollands commented on Drone Savant's blog post James May's Toy Stories Flight Club (featuring an ArduPilot)
"The logs might be interesting: - Clearly the PID's were not correctly tuned. The plane was osicillating from right to left to right etc for the entire journey. They altered the standard kit, and rebuilt new wings which had a much better glide…"
Dec 24, 2012

Developer
Pete Hollands replied to Leo Hogg's discussion Calculated wind vector.180deg out
"Possibly best to have MAVLink use wind vectors (computer to computer ), and then it is down to the GCS as to whether to show a wind direction as in human speak, or a wind vector."
Nov 18, 2012

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

MatrixPIlot Sonar Landing with the Logo Flight Plan Language

Posted on October 14, 2012 at 10:26pm 7 Comments

 

 Hi Folks, I've been working on sonar for a few weeks and I made 6 landings yesterday as shown in the Video above.

The detailed specification of the Maxbotix MB1230 is here.

The processing of the Sonar information to do…

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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…

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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.…

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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…

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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:…

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Comment Wall (1 comment)

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

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Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.

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