Alejandro Martin Pirola
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  • Buenos Aires
  • Argentina
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FBW-A Bad pitch attitude estimation due long turn

Started Jan 27 0 Replies

Hi! I found an attitude estimation issue due long turn using HIL + FlightGear + Arduplane 2.7. When I perform a long turn with Rascal 110 (FBW-A flight mode, bank: ~20 degrees), pitch estimation…Continue

Tags: FBW-A, HIL, IMU, Attitude

 

Alejandro Martin Pirola's Page

Latest Activity

Alejandro Martin Pirola replied to Sandy Thomson's discussion Bad Baro Health in the group ArduPlane User Group
"Sandy, I have the same issue, glad to know you documented it so good. Despite Bad Baro... messages, baro seems to work fine.  "
Thursday
Alejandro Martin Pirola commented on Chris Norris's blog post seL4 Secure Micro kernel
"Agree with Chris Norris, NICTA seems to be an attempt to protect against Kernel attacks and maybe a set of User space tools to react. Any other kind of attack remains being a threat. "
Jul 29
damone phanavong commented on Alejandro Martin Pirola's blog post Hexa Tarot FY680 with custom retractable landing gear
"yes.. I like that plastic adapters to mount RC Timer gimble... where can I get one.. I just brought my gimble and try to mount it on Tarot 680"
Apr 23
Alejandro Martin Pirola replied to Drone-University.com's discussion Can anyone explain those new designs ? Purely aesthetics or indeed more efficient ? in the group ArduPlane User Group
"I think it may be a modular design, a "divide and conquer" approach. UAV frame and propulsion simplified, then payload is an extension connected in a fancy way. A extremely low center of gravity ensure stability. CoG is so far from wings,…"
Apr 10
Wasiliy Zangiev commented on Alejandro Martin Pirola's blog post Hexa Tarot FY680 with custom retractable landing gear
"Where can I buy these items?"
Mar 12
Wasiliy Zangiev commented on Alejandro Martin Pirola's blog post Hexa Tarot FY680 with custom retractable landing gear
"Hi, can you also give us the files (3D printer) for the landing gear parts?"
Mar 12
Alejandro Martin Pirola commented on Laird Foret's blog post CHEAP LIDAR!
"Would be nice get LiDAR data stream and full fill it with IMU data such as pitch and roll + Sonar Range Sensor for Alt. in order to get a full 360 degree x ~45 vertical aperture point cloud, taking advantage of multicopters pitch & roll…"
Mar 6
Alejandro Martin Pirola commented on Laird Foret's blog post CHEAP LIDAR!
"Laird, please don't get me wrong, I'm glad your team build this LiDAR almost RTF. Actually I was waiting for something like this. XV-11 LiDAR units are great, but requires a lot of work get this things working out properly.…"
Mar 6
Alejandro Martin Pirola commented on Laird Foret's blog post CHEAP LIDAR!
Mar 6
Alejandro Martin Pirola commented on CSGShop's blog post Full SPI 11DOF IMU with GPS...
"Nice work CSGShop, tell us about which MCU do you have? And I would like to know about your base firmware, which AHRS or fusion sensors algorithm are you using DCM, Kalman? SPI ouputs includes Raw data and AHRS Quaternion?"
Feb 26
Alejandro Martin Pirola replied to Alexey Kozin's discussion arduplane 2.76 ahrs level correction problem in the group ArduPlane User Group
"I found that if you increase AHRS_RP_P param from 0.1 to 0.4 (means ACC more weight in attitude estimation than gyros) mitigates this issue. With AHRS_RP_P = 0.1 APM went out of control during a long 28 degree turn, now in 0.4 I can take long turns…"
Jan 27
Alejandro Martin Pirola replied to Alexey Kozin's discussion arduplane 2.76 ahrs level correction problem in the group ArduPlane User Group
"Hi guys, I have the same issue regarding bad AHRS pitch estimation due a long turn in FBW-A and Stab. My enviroment: FlightGear + HIL + Mission Planner 1.2.93. take a look to this video I made:  "
Jan 27
Alejandro Martin Pirola posted a discussion

FBW-A Bad pitch attitude estimation due long turn

Hi! I found an attitude estimation issue due long turn using HIL + FlightGear + Arduplane 2.7. When I perform a long turn with Rascal 110 (FBW-A flight mode, bank: ~20 degrees), pitch estimation fails. FlightGear HUD shows that pitch is increising fast up to 10 or 20, or more, in the other hand Mission Planner HUD doesn't note it.Take a look to this video (sorry, my spoken english sucks) :  See More
Jan 27
Alejandro Martin Pirola commented on Gary Mortimer's blog post Data delivery drones
"I must have lost my sense of humor, because I can't see the funny."
Dec 15, 2013
PaulTarotf680 commented on Alejandro Martin Pirola's blog post Hexa Tarot FY680 with custom retractable landing gear
"Hi ! Really nice Landing gear  "
Dec 4, 2013
Alejandro Martin Pirola commented on Chris Anderson's blog post Senate hearing will discuss Amazon drones
"Andreas lol :) "
Dec 3, 2013

Profile Information

About Me:
RC Hobbyist and Software Ing.
Please tell us a bit about your UAV interest
UAV Multicopters. Electronics stuff
Hometown:
Buenos Aires

Alejandro Martin Pirola's Blog

Hexa Tarot FY680 with custom retractable landing gear

Posted on September 11, 2013 at 12:12pm 13 Comments

Hi DIY guys, I would like to show you my almost finished Tarot FY680 setup.

 

I saw different approaches for ESC mounting. I choose bottom because a couple of reasons:



1-My motors wires were long enough to reach central frame,…

Continue

3D printed quadcopter with detachable arms - Part2: Flight test

Posted on May 11, 2013 at 9:00pm 11 Comments

The last post I show you pictures of my 3D printed quad. It took me more than thought to test it in flight.  The climate and labor, plotted.

Test flight was successful. It flew solid, pretty stable, less noisy than my other models (May…

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3D Printed Quadcopter with detachable arms

Posted on April 28, 2013 at 4:30am 21 Comments





I have been working on this model for almost two months. The idea was to create a mid/heavy-lift 3D printed folding/detachable quadcopter. this is the first prototype that I have printed out.

Hope you guys helps me to improve the design. There is a lot of things to do before it's done. For example battery holder, in different alternative…

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Homemade Steadycam Hexacopter (part 2)

Posted on January 18, 2013 at 5:30am 1 Comment

 

 

http://www.youtube.com/watch?v=HZLZJC6_Vfg

Last post I presented this homemade hexacopter. This is primarily a mechanical steadycam style motion compensation/smoothing system, the 2 servos (roll, pitch) engage and act as dampers to reduce oscillation and alter the "home" position to…

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