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MC's Discussions

Vision based real-time localization system

Started this discussion. Last reply by AndrewF 10 hours ago. 2 Replies

Altitude hold control loop

Started this discussion. Last reply by Doug Weibel May 16, 2011. 2 Replies

Mods for heavy EasyStar

Started this discussion. Last reply by Thomas J Coyle III Sep 20, 2009. 1 Reply

 

MC's Page

Latest Activity

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AndrewF replied to MC's discussion 'Vision based real-time localization system'
I think there could be some promise in the OpenTLD algorithm (http://forums.trossenrobotics.com/showthread.php?4822-OpenTLD-quot-Predator-quot-Tracking-Software).  It would still take some work to go from this to UAV navigation.  For…
10 hours ago
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Yusuf Pirgali replied to MC's discussion 'Vision based real-time localization system'
I too would be intrested in such a system, if only to film my flights etc..
11 hours ago
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Vision based real-time localization system

Does anybody worked on the position estimation of a hovering UAV (quadrotor, helicopter etc.) using external multiple webcams+PC and a custom OpenCV (or MATLAB) application in indoor environment ?(Yes, I'm trying to make a poorman's version of expensive Vicon system)See More
Discussion posted by MC 11 hours ago
2 Comments
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MC commented on Chris Anderson's blog post 'Kinect Gesture-Controlled RC helicopter'
That is very good! Well done and than you for sharing with the DIYdrones community.  Where can we find the IR control data transmission protocol details for S107 RC Helicopter? (or can we get your IR transmit sketch as an example?)
11 hours ago
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MC commented on CrashingDutchman's blog post 'HD Pocket Camera 1280x720p 30fps 5MP CMOS'
Is there any online FPV and/or airborne recorded video recorded with this camera to see online?
Jun 2, 2011
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MC commented on CrashingDutchman's blog post 'HD Pocket Camera 1280x720p 30fps 5MP CMOS'
What is that next to the lens? Isn't it a small vibrator motor similar to one shown below?
Jun 2, 2011
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Doug Weibel replied to MC's discussion 'Altitude hold control loop'
Several of us did some work with the baro sensor, gps, and IMU, trying to use a simple kalman filter to fuse the data.  Our conclusion is that the noise characteristic of the baro sensor, which is not white at all, makes this fairly…
May 16, 2011
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dmohankkvr replied to MC's discussion 'Altitude hold control loop'
Is the UAV a fixed-wing aircraft or quad-rotor? The ultrasonic range sensor doesn't have much range to sense. What is the range of you US range sensor?
May 15, 2011
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Altitude hold control loop

1 -  How to mix data from ultrasound range sensor, altimeter (barometric pressure sensor) and GPS to better estimate the altitude of a UAV platform? 2 - How to use the altitude estimate (from question 1) to create PID control loop for altitude hold  for a hypothetical UAV platform? See More
Discussion posted by MC Mar 6, 2011
2 Comments
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DaveyWaveyBunsenBurner commented on MC's blog post 'Altitude hold control loop'
Hi Mc, Questions are really better off in the forum than Blog posts. Could you move this to the forum so I can delete as a blog post please? Thanks, appreciate your help.
Mar 5, 2011
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MC commented on Melih Karakelle's blog post 'ArduLog Opensource microSD GPS logger'
This new little product look nice and seems to be very useful not only for GPS logging but also for general purpose data logging depending on its write (write to SD) performance. Is there any figure/number indicating its data throughput ie. how fast…
Mar 2, 2011
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MC commented on Chris Anderson's blog post 'New from HobbyKing: parafoil gondola'
Is there anybody here in DIYDrone community who made a UAV with HobbyKing's 2.15m parafoil or made it fly in remote control? I want to build a RC paramotor using this HobbyKing's 2.15m parafoil and I wonder if someone can advise…
Feb 11, 2011
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MC commented on Didier's photo
Where can we find more information about this motorized paraglider?
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FPV Planes

Nov 11, 2010
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MC commented on Doug Weibel's blog post 'Minimal resource RC input/output interface demo'
Doug, I like pasta, I like spagetti!! Code please!!!
Nov 11, 2010
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MC commented on Doug Weibel's blog post 'Minimal resource RC input/output interface demo'
This is very interesting!! Impressive work!! May i ask where can we find more details about your work (source code and connection diagram)?
Nov 10, 2010
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MC commented on Paul Mather's blog post 'HappyKillmore's Ground Control Station Status Update'
Looks great! Excellent work! EasyCAP has 4 video inputs. Can you select (how) which video input to display? From where I download the sourcode of your GCS?
Nov 6, 2010

Arduino Mega based UAV Autopilot

Hello Everyone,

Objectives

I am new to autopilot development and I want to build an autopilot based on

Can you help?

Can someone point me to the right direction for the following;
  • How to fuse all the IMU+GPS+Airpressure sensor data together to estimate UAV's state (its position, orientation, velocities and accelerations)?
  • How to create a "realistic" UAV flight dynamic model of a popular UAV airframe (such as Mutiplex EasyStar ) for simulation?
  • How to decode multi channel PPM signal from a RC receiver using Arduino Mega?
  • How to tune PID controller for throttle, elevator, aileron and rudder?

MC's Blog

MC

The longest flight time you had with your EasyStar

Posted on August 15, 2009 at 3:55am 6 Comments

Dear DIYDronians,

What is the longest flight time you had with your EasyStar using additional batteries?
What is the MTOW for EasyStar?
How much extra weight (extra batteries) it can carry?

Thx
MC

Accurate 3D CAD model of the Multiplex Easy Star

Posted on May 26, 2009 at 7:59am 4 Comments

Do you know if there is a publicly available 3D CAD model file of the Multiplex Easy Star (preferably an accurate)?
MC

Ardunio Mega code to read MicroMag 3-Axis Magnetometer

Posted on April 25, 2009 at 11:23am 0 Comments

We can calculate the UAV heading (flight directions) from multiple consecutive GPS readings if the UAV is moving. However, for a hovering, this method would not work and we may need a magnetic compass or a magnetometer (like MicroMag 3-Axis Magnetometer from SparkFun).



Is there any code out there for… Continue
MC

Attitude determination using multiple GPS receivers

Posted on April 20, 2009 at 3:08am 1 Comment

Is it possible (how) to determine UAV's attitude (orientation) using multiple (two) low cost GPS receivers (like those on SparkFun's GPS page) ?
MC

Climb or decent to altitude and altitude hold using pitot/static sensor suite

Posted on April 19, 2009 at 2:42am 6 Comments

GPS receivers (without DGPS or WAAS corrections) do not provide accurate altitude information. In order to maintain accurate altitude, a pitot-static may be used.
Is there anyone in this DIY Drones network who used a pilot-static sensor suite for his/her Ardupiloted UAV?

Comment Wall (4 comments)

At 8:21am on April 12, 2009, MCMC said…
Can someone explain and show examples how to fuse all the IMU+GPS+Airpressure sensor data together to estimate UAV's state (its position, orientation, velocities and accelerations)?
At 8:35am on April 12, 2009, MCMC said…
How to create a "realistic" UAV flight dynamic model of a popular UAV airframe (such as Mutiplex EasyStar ) for simulation?
At 8:36am on April 12, 2009, MCMC said…
How to decode multi channel PPM signal from a RC receiver using Arduino Mega?
At 8:47am on April 12, 2009, Sgt RicSgt Ric said…
Posting questions on your own page does not mean many people will see them.
Find an appropriate blog topic heading and add your threads there instead.

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