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Sebastian Gralla
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  • 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

wilfrid.babilas left a comment for Sebastian Gralla
"Hi, Do you speak french ! it is more easy for me :)   Wilfrid.Babilas"
Apr 28

Moderator
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

Moderator
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

Moderator
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

Moderator
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

Moderator
Sebastian Gralla commented on Max Levine's blog post The easiest way to mount APM2 on ArduCopter.
"no, that adds way too much mass to the autopilot, it needs to be able to follow the movement of the frame"
Jan 25

Moderator
Sebastian Gralla commented on Henry Fletcher's blog post Switching from DCM to Quaternion
"what about axis coupling? does it work as well as in dcm? @davey: the algorithm used in MPU 6000 is not changeable and, as far as I  know, it's the best you could get out of this sensor "
Jan 7

Moderator
Sebastian Gralla commented on trappy's blog post Fly out #5 // High Five
"Martin: .... no, the camera is mounted in the RC planes and in the speedglider (the guy with a kite)"
Jan 7

Moderator
Sebastian Gralla commented on Sandro Benigno's blog post MinimOSD in DIYDrones Store!
"ahh, thank you Sandro :)"
Jan 6

Moderator
Sebastian Gralla commented on Sandro Benigno's blog post MinimOSD in DIYDrones Store!
"I can't find the firmware anywhere I'm really interested in the MAVLink implementation as I'm trying to build a GCS out of an Atmega with graphics LCD."
Jan 6

Moderator
Sebastian Gralla replied to jasonshort's discussion Arducopter 2.0.56
"yes it still fits on it (have it running here) but without the logging functionality"
Dec 12, 2011

Moderator
Sebastian Gralla replied to James's discussion dead APM or shield diagnosis
"it clearly looks like the processor on apm is toast I don't know how you could have done this, I never managed to fry an atmega that way.. (well.. maybe you got a short on the I2C pins? did you mount a magneto?)"
Dec 12, 2011

Moderator
Sebastian Gralla replied to Gareth Rens's discussion 2.0.55 seems a little wobbly
"you need to tune the PIDs ;)"
Dec 12, 2011

Moderator
Sebastian Gralla replied to Sebastian Gralla's discussion Throttle signal jumps
"Ok thank you all, I solved it. seems like my transmitter jumps to maximum throttle when trim is not centered. solution -> trimmed it up a bit, and now it's working fine :)"
Dec 8, 2011

Moderator
Sebastian Gralla replied to Sebastian Gralla's discussion Throttle signal jumps
"I'm using the default version (it's the first APM which came out, so I think it is the first version...) I will try :)"
Dec 8, 2011

Developer
Olivier ADLER replied to Sebastian Gralla's discussion Throttle signal jumps
" Wich ppm encoder version do you have ? Switching to ArduPPM could solve your problem. "
Dec 7, 2011

Profile Information

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

Sebastian Gralla's Photos

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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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