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Andrew Burns commented on Chris Anderson's blog post Calculating airspeed from a differential pressure sensor
"I'm currently working with some pressure sensors for work. I've managed to extract a usable 1mm of water (about 0.01kPa) noise floor out of some Freescale absolute pressure sensors which read from -80 to +150kPa (gauge). That's about 0.005% of full…"
Aug 7, 2010
Andrew Burns commented on Chris Anderson's blog post A very creative use of an IMU
"I looks like (and maybe it should be) on display as a dynamic sculpture, I like it."
May 15, 2010
Andrew Burns commented on Chris Anderson's blog post ArduPilot Mega Now Available!
"Significantly larger main microcontroller, significantly larger failsafe controller, larger boards which will cost more, many more tracks which would have required a lot more effort to route etc... It's still fairly cheap when you consider the total…"
Apr 29, 2010
Andrew Burns commented on Chris Anderson's blog post ArduPilot Mega Now Available!
"Any news on code? This would be the ultimate low-cost autopilot for the Outback UAV challenge I think assuming the ground control software has a few key features (waypoint upload and real-time gain changing/plotting I would list as the most useful)."
Apr 28, 2010
Andrew Burns commented on Chris Anderson's blog post What our cousins in rocketry are doing
"Another rocket 'flight computer' being developed by a friend can be found here: http://ausrocketry.com/forum/viewtopic.php?f=32&t=1922

It's designed to be a main board + add-on board system depending on what you need, there are a bunch of graphs…"
Apr 27, 2010
Andrew Burns commented on Jordi Muñoz's blog post ArduPilot Mega Updates, updates!
"So there's no differential pressure sensor, this means everything is calculated based on GPS ground speed? How then can the aircraft manage throttle to maintain constant airspeed? And if you don't manage airspeed your gains will always be off when…"
Apr 25, 2010
Andrew Burns commented on Irfan Mohamed's blog post Inverted V-tail advantages?
"We're going for that layout in our design because:
- Twin boom pusher is safer to be around on the ground
- V tail has slightly lower drag
- No protruding cantilever structures (like fins) so it's stiffer and less likely to catch on things
- Keeps…"
Mar 25, 2010
Andrew Burns commented on Tom Hastie's blog post More ArduIMU Fun
"That level of vibration would really be degrading your results, just wrap the IMU in some foam before securing it to the frame next flight and you'll get much better results, as you know."
Mar 23, 2010
Andrew Burns replied to Andrew Burns's discussion Ardupilot 2.5 mission scripting
"Thanks for the help guys sounds like it's going to work fine. Now I just need to get my hands on one for testing :P"
Mar 17, 2010
Andrew Burns posted a discussion
I've seen the following in the Ardupilot 2.5 documentation:Features:- Programmable 3D waypoints; return-to-launch mode, in-flight resetability, fully programmable actions at waypoint and totally expandableboard.New in 2.5:- Scriptable missionsWhat…
Mar 17, 2010
Andrew Burns commented on automatik's blog post What's your screen resolution? - help GCS desing
"Yes please make sure it will work on a netbook with 1024x600 resolution, nothing screams bad design to me than a program with a fixed window bigger than this :S

On my desktop I run 1680x1050."
Mar 15, 2010
Andrew Burns commented on Jordi Muñoz's blog post APM Oil Pan!
"Magnetometer or compass? Those are probably better away from stray power interference but they've been mentioned :P

Good work with the autopilot, I can't wait to get my hands on it, need it for the aussie outback UAV comp this year so the sooner…"
Mar 2, 2010
Andrew Burns posted a discussion
Has anyone managed to get the Millswood Engineering GCS (http://www.millswoodeng.com.au/fd_gcs.html) to work with Arupilot telemetry stream?I'm in a team to be competing in this year's Australian outback UAV challenge and we'll be using one of their…
Feb 28, 2010