Sebastian Gralla
  • Male
  • Mainz
  • Germany
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Sebastian Gralla's Discussions

Throttle signal jumps

Started this discussion. Last reply by Sebastian Gralla Dec 8, 2011. 7 Replies

I have switched today to the new 2.0.56 code (was running RC1 before, I know, old code... :D)I now have a problem, my throttle signal (from reciever) is normal until 1500, when i push the stick a…Continue

Tags: MLP4DSM, OrangeRX, E-Flite, throttle, signal

Main loop speed

Started this discussion. Last reply by Sebastian Gralla Jan 5, 2011. 4 Replies

I just wondered why the main loop in the ACM code is only executed at 100HzNG code runs at 200Hz (which is slow for a quad) if you take a look at Aeroquad and Mikrokopter code: they all run at…Continue

Tags: control, loop, speed, loopspeed, ADC

Propellers

Started this discussion. Last reply by DougB Dec 5, 2010. 3 Replies

Which Propellers do you use? Today one of my propellers broke in midflight (i have to say: i decreased the Stick to angle value to 8 which makes it fly much more aggressive)currently i use…Continue

Tags: Quadcopter, Quadrocopter, Quadrotor, Multirotor, Arducopter

 

Sebastian Gralla's Page

Latest Activity

Sebastian Gralla commented on Gary Mortimer's blog post Trappy's Counsel File Motion To Dismiss
"I still don't get it why it's illegal to fly next to a statue, I mean come on, if a 5 pound styrofoam block could hurt it, it wouldn't survive a storm."
Oct 31, 2013
Sebastian Gralla commented on Bill Bonney's blog post FIND MY DRONE iPhone App Published in App Store
"Hugues: APM with 3DRadio -> 3DRadio on the ground which is connected to wifi -> phone Bill: will the Fighting Walrus Radio be supported? http://www.indiegogo.com/projects/fighting-walrus-radio"
May 31, 2013
Sebastian Gralla commented on Lorenz Meier's blog post QGroundControl Update
"is there a way to change the timescale of the graph? 1s is pretty short for long term data like battery voltage and current. I like the new version :)"
May 27, 2013
Sebastian Gralla replied to Bryan Galusha's discussion What features are most important? in the group Fighting Walrus Radio Dev
"Camera control would be a great feature. One person flying on RC and the second person could control the camera gimbal."
Apr 23, 2013
Sebastian Gralla commented on Sam Kelly's blog post ArduPilotMega + Spektrum satellite Rx -- NOW AVAILABLE
"still no update on this? i have one of these adaptors, will it work with APM2.5? I assume if it would they would still be available..."
Apr 21, 2013
Sebastian Gralla commented on Colin's blog post Ardustation Mega with Graphic LCD
"Hey Colin, I gathered all the files I found, they are uploaded right here. It uses the GLCDSS library from savitch (arduino forums) for easy 3D rotating. It is contained in my uploaded file because one can't find it anymore. Hopefully my files…"
Apr 8, 2013
Sebastian Gralla commented on Colin's blog post Ardustation Mega with Graphic LCD
"I once wrote a code for a graphical groundstation (back when Arducopter was still in alpha stage, without Mavlink) I never got to add Mavlink support. What it has, is a rough 3D model of a copter, showing the orientation of it in mid-flight, got…"
Mar 18, 2013
Sebastian Gralla commented on Joshua Johnson's blog post Voice Controlled APM 2.5 Project?
"Richie: that's not the point here, there are arduino shields that can do voice recognition: https://www.sparkfun.com/products/10963"
Mar 18, 2013
Sebastian Gralla replied to Andrew Boos's discussion Mavlink Basics
"yes, you can use another protocol, but you then have to change the APM firmware accordingly Mavlink is used as a default communication protocol between the APM and your ground station"
Mar 18, 2013
Sebastian Gralla commented on yann.B's blog post New and simple way to make 3D moves without complex mecanism .
"You could save a Quad with one motor/prob breaking down, it would spin like hell, but still stable and safe for landing"
Mar 8, 2013
Sebastian Gralla replied to Robert's discussion Downgrade APM2 firmware
"connect it to the APM planner and check if all settings are correct, you most likely will have the erase the eeprom and restore to factory settings and then go from there, do you remeber the working PID settings?"
Jul 28, 2012
wilfrid.babilas left a comment for Sebastian Gralla
"Hi, Do you speak french ! it is more easy for me :)   Wilfrid.Babilas"
Apr 28, 2012
Sebastian Gralla commented on Chris Anderson's blog post "Think GPS is cool? IPS will blow your mind."
"Ric: maybe you accidently deactivated GPS with 3G? on my iphone, it does not matter if 3G is activated or not, position accuracy is exactly the same"
Apr 28, 2012
Sebastian Gralla commented on Chris Anderson's blog post "Think GPS is cool? IPS will blow your mind."
"well.. in iphone uses wifi for that don't trust me? go into a building, deactivate wifi and search your location, it will ba very weak, now activate wifi -> you will get ~2m precision if there are a few wifi spots around ;)"
Apr 25, 2012
Sebastian Gralla commented on giancarlo.forum's blog post ArduPilot 4? ARM and IMU in one chip: MPU-9150
"well, 2.5W on a quad is a very small consuption (you take about 150W to hover)"
Feb 17, 2012
Sebastian Gralla commented on Azam Shahani's blog post Incredible Flight Endurance!
"as you see in the video, there is no battery dropped from the drone ;) and they mein parallel for parallel, not for selective battery switching, that means the lipos are hardwired which menas that all batteries drain at the same time, no empty…"
Feb 13, 2012

Profile Information

About Me:
I'm just building a Quadrotor
Please tell us a bit about your UAV interest
I'm interestet in multirotor UAV, especially Quadrotors.

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Comment Wall (3 comments)

At 8:47am on August 17, 2010, Gary Gress said…
Hi Sebastian, thanks for the quick reply. How much would it take (money and time)? I want one! I could probably sell quite a few with the gressaero bicopters too. - Gary
At 4:01pm on May 22, 2011, Ryan Johnston said…
Thanks Sebastian, will do : )
At 4:03pm on April 28, 2012, wilfrid.babilas said…

Hi,

Do you speak french !

it is more easy for me :)

  Wilfrid.Babilas

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