Mark Williams
  • Male
  • Leeds, United Kingdom
  • United Kingdom

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Mark Williams's Groups

Mark Williams's Discussions

Low battery failsafe landing speed

Started this discussion. Last reply by Kjetil Uthne Hansen Feb 12, 2015. 4 Replies

I ran my hex battery down too far last week and the battery failsafe kicked in. It is set up to autoland so down it came. The landing speed is very fast and didn't slow before the hex hit the ground.…Continue

Compiling mission planner "BUT_MagCalibrationLog does not exist"

Started this discussion. Last reply by Mark Williams Nov 6, 2014. 1 Reply

I have cloned missionplanner from GitHub and am trying to build it. I have got past the majority of the build errors but can't figure this one out. I am getting the following errors from VS 2013. Can…Continue

Errors georef ing images

Started this discussion. Last reply by Mark Williams Nov 6, 2014. 1 Reply

I have a series of images and a flight log from a mission today. When I go to georef the images using the .log file I am getting the following error when attempting to estimate the time offset. Does…Continue

My Arducopter was flying fine then drops GPS lock and crashed

Started this discussion. Last reply by DG Oct 23, 2014. 1 Reply

I was out testing my hexacopter this morning. I flew a simple mission perfectly and everything was going well. However once I switched into loiter the aircraft flew off in a random direction very…Continue


Mark Williams's Page

Latest Activity

Jerry Cresp replied to Mark Williams's discussion Smartphone for aerial photographs
"Good luck; please post some pictures."
Jul 7, 2019
spagoziak replied to Mark Williams's discussion Smartphone for aerial photographs
"I'm currently offline for a rebuild; the airframe is a skywalker (6 foot foam pusher).  I'm migrating APM from the old APM 2.6 legacy hardware to a Beaglebone blue.  Quite a learning curve!"
Jul 7, 2019

Profile Information

Please tell us a bit about your UAV interest
I am interested in building a drone for conservation and ecological surveying

Mark Williams's Blog

Drones in Environmental Research conference at Liverpool JMU

Posted on June 30, 2015 at 2:00am 7 Comments

Liverpool John Moores University are holding their second conference on the use of drones in environmental research on July the 7th and 8th. There are some great pieces of research being presented and it should be a very interesting couple of days.



Automated land cover classification for conservation and habitat monitoring

Posted on May 8, 2015 at 4:25am 10 Comments

I posted the results of my research into using a small UAV for land cover classification for habitat monitoring a couple of months ago.

I've created a short video as part of my research presentation that details the workflow used to…


Using UAVs and NIR photography in conservation land cover classification

Posted on March 19, 2015 at 8:53am 15 Comments

I've recently finished a research project using UAVs to classify land cover types on British upland heath. I'm using an APM controlled hexacopter (H550) carrying a Canon Powershot S95 modified for NIR photography. I've successfully surveyed and classified around 15 hectares in 10 minutes. Using image analysis software I've been able to classify the major land cover…


Banggood LEDs for multicopter orientation

Posted on December 31, 2014 at 9:00am 4 Comments

I bought a few of these banggood LEDs in order to help avoid me constantly losing orientation of my hexacopter. They were very cheap and very easy to fit. The video doesn't do them justice but flying at about 2pm on a clear day…


Comment Wall (1 comment)

At 1:57pm on April 18, 2014, Ahmed Shareef said…
Hi, Greetings from Maldives! I see you have same platform and possibly same goal as Im having here. So we can cooperate on this. You know like sharing information, Im more interested in post-processing. Im building a photogrammetry application out of necessity.

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