"There is a known service cycle dropout issue with some models.
I do not use the Xbees so I don't have any details, but I know it hasbeen discussed at great length here and at rcgroups."
Matthew Coleman's Discussions
30 minute timout on Xbee link. Anyone have this problem?
Started this discussion. Last reply by Sgt Ric May 26. 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
GCS with audio rate of climb (vario)
Started this discussion. Last reply by Matthew Coleman Jul 12, 2011. 36 Replies 0 Likes
Is there a GCS that gives audio feedback on rate of climb?Audio feedback of changing total energy (potential plus kinetic) would be better. I would very much like to see this on HK GCS but HK is…Continue
Which autopilot for a glider mission?
Started this discussion. Last reply by Matthew Coleman Jun 13, 2011. 10 Replies 0 Likes
I have a mission:To fly a full wing (flaperon) electric powered glider for as long as possible on autopilot.The challenge:The autopilot / flight director needs to hunt for lift. It needs to be…Continue
Matthew Coleman's Page
Latest Activity
ModeratorSgt Ric replied to Matthew Coleman's discussion 30 minute timout on Xbee link. Anyone have this problem?
Perecastor replied to Matthew Coleman's discussion 30 minute timout on Xbee link. Anyone have this problem?"Did you have a screensaver or something else?
How is configured your netbook about the power saving ( stopping HDD or USB) when the netbook is in idle mode?"
Seppo replied to Matthew Coleman's discussion 30 minute timout on Xbee link. Anyone have this problem?"Have used XBee Pro 900 and XBP 2.5GHz modems without issues on long flights... Also have not seen any info on dropouts after 30 mins??"
Matthew Coleman posted a discussion30 minute timout on Xbee link. Anyone have this problem?
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 couldn't find anything in the forum on this. Please let me know if this is a known Xbee problem.Regards MattSee More
Matthew Coleman commented on Janne Mäntyharju's blog post Showing APM telemetry data on Hitec Aurora’s screen (revisited)"@Janne, My apologies for hijacking this thread but I thought it important for hitec users. Nice work on the A9 telemetry data."
Matthew Coleman commented on Janne Mäntyharju's blog post Showing APM telemetry data on Hitec Aurora’s screen (revisited)"Updates are available here:
http://www.hitecrcd.com/support/firmup/spec24update.html
I have had problems when running V2.00. I can't say that the failures I had are definitely caused by the hitec receiver. I had three failures on two…"
Matthew Coleman commented on Janne Mäntyharju's blog post Showing APM telemetry data on Hitec Aurora’s screen (revisited)"Warning to all Hitec A9 radio users. There is a serious issue with older receiver firmware. The receiver has an intolerance to heavy interference resulting in long lockout periods (and crashed aircraft!). Make sure you do a…"
Matthew Coleman commented on Sandro Benigno's blog post A new "FPV model" by HobbyKing (RQ-4B Global Hawk)"Try the Xplane version of the full size predator. It really does not like slowing down much and tries to high speed stall during turns. Very much less than fun to fly."
Matthew Coleman commented on John Arne Birkeland's blog post Watertight Android tablet. The perfect groundstation?"When you take it out of the toilet and dry it off, is it sunlight readable?"
Matthew Coleman replied to Alex's discussion UDB 4 shopping list"Alex,
You might wish to ask your question on the main UDB forum here:
http://groups.google.com/group/uavdevboard?pli=1
But quick answers:
The programmer is a clone. Go with the real thing, They are not so expensive and won't…"
Matthew Coleman commented on Gareth Rens's blog post Backup system for BEC"Please please save yourself and use an ORing/ideal diode controller as suggested by Dean Franks on the first page. LT, Maxim, TI, IR, Intersil and more, make these controllers for a very good reason. Please google for an app note, read…"
Matthew Coleman replied to Matthew Coleman's discussion GCS with audio rate of climb (vario)"I have been hacking away at DirectX, DirectSound, .NET framework, SlimDX and Xaudio2. It is a mess.
SlimDX seems to be taking over from DirectX. Documentation is almost none existent. There are samples in c# which need…"
ModeratorPaul Mather replied to Matthew Coleman's discussion GCS with audio rate of climb (vario)
"I'll have to investigate....no, the limits were some thresholds I put in so the Vario wouldn't beep like crazy during takeoff and landing.... as per your original suggestion along with the dead-band in the middle."
Matthew Coleman replied to Matthew Coleman's discussion GCS with audio rate of climb (vario)"Forgot to say, all rates set to lowest. GPS to 1Hz, GE 1Hz, others none.
Noticed another feature running the test file on the Core2 Duo laptop. The beeps were good until a limit was reached, then no sound apart from the odd random…"
ModeratorPaul Mather replied to Matthew Coleman's discussion GCS with audio rate of climb (vario)
"I can't say for sure about offline maps. I'm investigating 4 options.
The way I'm generating sounds is the lowest level there is. The Beep API call is the most basic function call you can have. I'll take a look at Direct…"
Matthew Coleman replied to Matthew Coleman's discussion GCS with audio rate of climb (vario)"The netbook was set to 1Hz.
The Core2 duo 2GHz machine ran a better with delay 1-2 seconds from the vertical rate meter.
Offline version sounds promising.
Is it possible to remove GE completely or is some other part of the system dependent on…"
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
A challenge - An autopilot to fit in this
Posted on March 5, 2011 at 2:53am 28 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…
ContinueComment Wall
- No comments yet!
Contests
Season Two of the Trust Time Trial (T3) Contest has now begun. The third round was a reliablilty/aerial photography round for both planes and copters, which is now closed. Stay tuned for the next round, beginning soon.A list of all T3 contests is here.
Top Content
Groups
-
DIYDrones - CNC Project
61 members
-
ArduCopter (traditional …
116 members
-
ArduCopter Evolution Team
108 members
-
Moderators
57 members
-
UK Ardupilot Group
29 members
© 2012 Created by Chris Anderson.
