"The udb4 is very much alive. It doesn't have the shiny look and user features of ArduPilot. It does have a team making many innovations that contribute to ArduPilot. ArduPilot is stuck with old methods because that is what the overweight gui…"
Matthew Coleman's Discussions
Building mavlink in scilab code block
Started this discussion. Last reply by Venkat Gidda Jan 23. 4 Replies 0 Likes
I am attempting to build the mavlink library in a scilab block to run SITL.When scilab compiles, it only finds the mavlnk headers if I name the absolute directory. Changing the working directory…Continue
Vario for glider pilots using mavlink/mavproxy telemetry
Started Jun 18, 2012 0 Replies 0 Likes
If anyone is interested in adding a vario (audio beeps depending on rise/fall rate) for mavlink connected autopilot, there is a project here:…Continue
30 minute timout on Xbee link. Anyone have this problem?
Started this discussion. Last reply by Sgt Ric May 26, 2012. 3 Replies 0 Likes
I have had several long flights when the Xbee 2.4GHz S2 communication stopped around 30minutes after power up. This may be something to do with ubunutu/netbook settings instead of the Xbees. I…Continue
GCS with second monitor output for HUD (not FPV)
Started this discussion. Last reply by Matthew Coleman Apr 16, 2011. 1 Reply 0 Likes
I would like to be able to fly while watching the aircraft but still get critical flight data such as attitude and airspeed. This means putting the display in the field of view without obstructing…Continue
Matthew Coleman's Page
Latest Activity
b nevins commented on Matthew Coleman's blog post Anything you want mixing"I didn't even know people were still using the UDB4 anymore. It's good to know it isn't a serious load to the system either, I was figuring the extra calculations and functions would be an issue, but I'm not really familiar…"
Matthew Coleman commented on Matthew Coleman's blog post Anything you want mixing""Since all mixing is moved to the Tx"
should read
"Since all mixing is moved to the autopilot""
Matthew Coleman commented on Matthew Coleman's blog post Anything you want mixing"Thanks for sharing your mixing problems. You seem to have a fairly unique setup there. It is just the kind of problem I created this mixer system to solve.
Since all mixing is moved to the Tx, no mixers are needed on the Tx. I fly…"
b nevins commented on Matthew Coleman's blog post Anything you want mixing"No doubt mixing can be complex. I am having trouble setting up mixing on a wing, and it only has 4 servos.
Elevon mixing (Finally added to the APM in manual mode)
Differential Aileron (On a left turn, the left Aileron/flap…"
Matthew Coleman posted a blog postAnything you want mixing
I would like to introduce the community to a mixer method used to fly complex aircraft in manual, fly-by-wire and autonomous modes.The main challenges of mixing are:Flexibility to do anything you want.Easy to use and prevents mistakesFly-by-wire capable.Field programmableEasily expandableFailsafe compatibleFly by wire needs…See More
Matthew Coleman commented on Bernardo M. A.'s blog post Simple Variable Pitch for Brushless Motor"Ok, so we are getting to the point of getting four helicopters and connecting them together with sticks. Starting to see why some people have claimed this as busted.
"
Matthew Coleman commented on Bernardo M. A.'s blog post Simple Variable Pitch for Brushless Motor"Sorry, auto-rotation not authorisation."
Matthew Coleman commented on Bernardo M. A.'s blog post Simple Variable Pitch for Brushless Motor"I don't know if a flightgear or xplane model would you experiment. Not sure if the authorisation functionality is there.
Can't help feeling that you are better off using main rotor heads instead of tail rotor mechanics since they are…"
Matthew Coleman commented on Bernardo M. A.'s blog post Simple Variable Pitch for Brushless Motor"Thanks Bernardo.
I guess you might also need a clutch on the prop otherwise or will be trying to turn the motor during autorotate."
wayne garris commented on Matthew Coleman's blog post Fly-by-polar"Matt, i have not heard back from you. this is what it should look like. I would even refine it further if I was going to use it in a feed forward loop.
"
Matthew Coleman commented on Alexey Kozin's blog post arduplane Automatic flight to alt 2414m"Göran, how about allemansrätten for the skies? If people are given a reasonable safe space to do as they wish, none of this is a problem. "
Matthew Coleman commented on Alexey Kozin's blog post arduplane Automatic flight to alt 2414m"ok, that's more like it. Hatt's off to the X5 pilot at 8400m"
Matthew Coleman commented on Alexey Kozin's blog post arduplane Automatic flight to alt 2414m"My apologies, I think I may have mislead everyone. The first third is the easy bit. The next third is much more difficult and the final third is incredibly difficult. So a third of the way in altitude but far from a third in terms…"
Matthew Coleman commented on Alexey Kozin's blog post arduplane Automatic flight to alt 2414m""A radio-controlled model airplane owned by Maynard Hill (USA) climbed to a record breaking altitude of 8,205m (26,919ft) on the 6 of September 1970."
So you are less than 1/3 of the way to a record set by someone 43 years ago.…"
Matthew Coleman commented on Bernardo M. A.'s blog post Simple Variable Pitch for Brushless Motor"Bernardo,
I have a question on the autorotation on which I am far from expert. Autorotation converts potential energy into lift by way of kinetic energy. My question is where that kinetic energy comes from to make lift for the final…"
Profile Information
- About Me:
- Electronics and software engineer
- Tell us a bit about your UAV interest
- Large autonomous gliders
- Hometown:
- Somewhere in England
Matthew Coleman's Blog
Anything you want mixing
Posted on May 16, 2013 at 3:10pm 5 Comments 4 Likes
I would like to introduce the community to a mixer method used to fly complex aircraft in manual, fly-by-wire and autonomous modes.
The main challenges of mixing are:
- Flexibility to do anything you want.
- Easy to use and prevents…
Fly-by-polar
Posted on April 28, 2013 at 10:18am 64 Comments 10 Likes
Airspeed control is critical when flying sailplanes. You want to fly close to stall but never beyond it, since that will normally cause a tip stall and great loss of energy. How do you teach an autopilot to fly on the edge of stall?…
A challenge - An autopilot to fit in this
Posted on March 5, 2011 at 2:53am 31 Comments 1 Like
This is the Vladimir models Graphite 2e. It is a fairly typical skinny, lightweight, efficient fully moulded motor glider. Despite its 3.1m span there is not much space for anything.
THE CHALLENGE - HOW TO FIT AN AUTOPILOT AND TELEMETRY SYSTEM IN A GRAPHITE…
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