Dave Whittington
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  • Oceanside, CA
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Dave Whittington's Discussions

Anyway to download the 2.6.8 ArduPilot Firmware

Started this discussion. Last reply by Dave Whittington Feb 13, 2013. 3 Replies

Just so I could have the actual binary that gets downloaded by Mission Planner, I would like to have the Arduplane 2.6.8 Firmware - not the source. Any place to get it?Continue

APM2.5 ( Ardupilot 2.6.5) IMU - Poor Orientation Results in Actual Aircraft

Started this discussion. Last reply by Cliff Gill Feb 4, 2013. 13 Replies

 I have been using an APM 2.5 in an actual aircraft connected to my laptop running Mission Planner just for recording pitch/roll/yaw and comparing it to the "gold standard" G1000 logged data while…Continue

MP 1.2.25 on XP using USB (driver is atmeaga2560.inf) says "Comx doesn't exist"

Started this discussion. Last reply by Dave Whittington Dec 14, 2012. 10 Replies

 Tried the latest (1.2.25) Mission Planner on XP 32 -bit, made sure the atmega2560.inf driver was installed (Device Manager says it is there), fired up MP and tried to connect. It shows "(COM5)…Continue

Option to Eliminate Asking for Update in MP

Started this discussion. Last reply by Dave Whittington Nov 28, 2012. 2 Replies

Michael,   I appreciate the updates of MP but I don't like to have to be careful to say NO to the update whenever I startup. I am staying with an older version that works for me but I could wipe it…Continue

 

Dave Whittington's Page

Latest Activity

Dave Whittington commented on Omer's blog post WiFi Telemetry with Cheap 3$ ESP8266
"@naish88,     Thanks for spending time on my questions. Here is the project - a thrown object finder.  I was wondering if I could use the ESP chip as a simple transmitter on WIFI frequencies on a small object so that a cellphone could…"
Aug 20, 2015
Dave Whittington commented on Omer's blog post WiFi Telemetry with Cheap 3$ ESP8266
"@naish88,      Wow - thanks much for the URL to that help page - best info yet! I can now see the ESP on my tablet and cellphone.       What I said about the Arduino was confusing - what I meant was that somewhere it…"
Aug 19, 2015
Dave Whittington commented on Omer's blog post WiFi Telemetry with Cheap 3$ ESP8266
" I purchased three of these WIFI chips from ebay but when I just connect Vcc (3.3v) and GRND, I see the power LED but not always the Blue LED - sometime it pulses when I touch the PCB. I never see it as ESP_**** on a tablet or my cellphone. Any…"
Aug 18, 2015
Dave Whittington replied to Al Toma's discussion Discussion Group for ArduImu V3 Applications Only?
"@Al,    Thanks much for this cleaned up version. The Magnetometer calibration seems to work - the "released" version doesn't have that at all - shouldn't it? Unfortunately, the printed out pitch and roll are incorrect…"
Oct 7, 2013
Dave Whittington replied to SHAQURMZ's discussion Seeking Help From Experts of Mission Planner Source Code
"  I'm sorry but I cannot help you on the HUD source code mods but I would be very interested in your efforts to calculate angle of attack and sideslip. Could you please provide your equations and maybe even the APM source code? Many of us…"
Jun 13, 2013
brian replied to Dave Whittington's discussion Comparison of xgyro, ygyro with rollspeed, pitchspeed which are extremely noisy
"Slow sampling would not remove the noise. Slow sampling with additional filtering would. So if the slow samples are sctually averages of 20 samples, or some other filter technique, then you would see the noise drop. Did you happen to sort this out…"
Mar 1, 2013
Dave Whittington replied to Dave Whittington's discussion Anyway to download the 2.6.8 ArduPilot Firmware
"Nor do I know how to download the hex - github - don't know   Dave"
Feb 13, 2013
Dave Whittington replied to Dave Whittington's discussion Anyway to download the 2.6.8 ArduPilot Firmware
"@chris,     Thanks for the info but I can't see how to discern which is Arduplane 2.6.8.   Dave"
Feb 8, 2013

3D Robotics
Chris Anderson replied to Dave Whittington's discussion Anyway to download the 2.6.8 ArduPilot Firmware
"The hex's are all in the GitHub repository.  https://github.com/diydrones/binary/tree/master/Firmware"
Feb 7, 2013
Dave Whittington posted a discussion

Anyway to download the 2.6.8 ArduPilot Firmware

Just so I could have the actual binary that gets downloaded by Mission Planner, I would like to have the Arduplane 2.6.8 Firmware - not the source. Any place to get it?See More
Feb 7, 2013
Dave Whittington commented on Chris Anderson's blog post Great ABC News profile of Jordi
"Jordi,     Congratulations!! You have been successful in your technical endeavors but more importantly, you have shown us all how to be an entrepreneur - starting a business and hiring a great team! When I visited your facilities in…"
Feb 5, 2013
Cliff Gill replied to Dave Whittington's discussion APM2.5 ( Ardupilot 2.6.5) IMU - Poor Orientation Results in Actual Aircraft
"I have also tried this several times over the years. A year ago I tried this with an old version of apm and it worked poorly. I just tried again with 2.68 and it worked pretty well, although not perfectly. I had no reference ahrs to compare, but…"
Feb 4, 2013
Dave Whittington replied to Dave Whittington's discussion APM2.5 ( Ardupilot 2.6.5) IMU - Poor Orientation Results in Actual Aircraft
"Ralph,    Here is 60 seconds of roll and pitch data for the APM and the G1000. I also included the rates for the APM.The far right columns are the G1000…"
Jan 30, 2013
Dave Whittington replied to Dave Whittington's discussion APM2.5 ( Ardupilot 2.6.5) IMU - Poor Orientation Results in Actual Aircraft
" I just wanted to report that using APM firmware 2.6.8 and AHRS_GPS gain of .5 and AHRS_RP_P gain of .2, I got much better tracking with G1000 data. The size of roll and pitch excursions when maneuvering at 30+ degress was much better -…"
Jan 30, 2013
Dave Whittington replied to Dave Whittington's discussion APM2.5 ( Ardupilot 2.6.5) IMU - Poor Orientation Results in Actual Aircraft
"I have included some quick plots of the difference between APM and G1000 data - just focus on the BLUE pitch data traces"
Jan 14, 2013
AlanGP replied to Dave Whittington's discussion Pitch and Roll are noisy (+- 1 degree) with new LEA-6 Ublox
"Hi, Just a guess but it might be due to the increased sensitivity of the u-blox over the "older" GPS. Alan"
Jan 8, 2013

Profile Information

About Me:
I have 30 years experience with flight simulation at Boeing and have flown RC planes as well
Please tell us a bit about your UAV interest
professionalflightsim.com
Hometown:
Marietta, Ohio

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Comment Wall (1 comment)

At 6:13pm on September 29, 2012,
T3
William Premerlani
said…

Hi Dave, Good question about determining angle of attack and side slip from available data. It would be easy to do if the wind were zero, but the wind is going to make it tricky. You need to know the wind accurately. My wind estimation algorithm assumes zero angle of attack and side slip, so in steady state, I think if you tried to compute side slip and angle of attack, they would come out to be zero. You might be able to determine sudden changes in the angles.

I will give it some more thought, if I come up with anything, I will get back to you.

Best regards,

Bill

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