About

Gender

Male


Location

Aachen


About Me:

electrical engineer and freelance industrial photographer


Please tell us a bit about your UAV interest

just finished my first hexacopter


Hometown:

Aachen


Activity Feed

Harald Finster replied to Aeropixel's discussion 3DR Power Module with missing part? in ArduCopter User Group
"I am not surprised, because the APM wasn't connected to the PM due to the missing voltage regulator ;-)
So, bad luck (the missing part) was probably good luck in this case."
Mar 24, 2014
Harald Finster commented on Alexey Kozin's blog post Allegro acs756 current sensor for arducopter
"@William: sorry, very late reply - just came across your question by accident.
Short Answer: the unidirectional versions map currents from zero to max_current to output voltages between 0V and 5V, whereas the bidirectional ones match the range from…"
Mar 24, 2014
Harald Finster replied to Aeropixel's discussion 3DR Power Module with missing part? in ArduCopter User Group
"Hi António,

the "black patch" with the soldering stripes at both ends, which is soldered diagonally, is the resistor which is used as a shunt in order to measure the current. I would never use the power module with this badly soldered resistor, as…"
Mar 24, 2014
Harald Finster commented on Ralph Wu's blog post APM Planner 2.0 for Linux
"Hi Miquel,

again, thanks for your feedback.
I tried your zypper command and the system updated several packaged, indeed.
I also loaded the latest zip file from the repository and tried to compile it.
Now I get new errors:
In file included from…"
Jan 8, 2014
Harald Finster commented on Ralph Wu's blog post APM Planner 2.0 for Linux
"probably solved (well, hacked around):
I hacked the following line in  qgroundcontrol.pri:
 exists(/usr/include/osg) | exists(/usr/local/include/osg)
to
 exists(/usr/include/osgxxx) | exists(/usr/local/include/osgxxx)
so that the compiler "thinks"…"
Jan 5, 2014
Harald Finster commented on Ralph Wu's blog post APM Planner 2.0 for Linux
"okay: flite problem solved
Obviously I still had an old version laying around and Suse 13.1 seems to consider flite as an unsatble package. I managed to install it from here:
http://software.opensuse.org/package/flite#
and the flite related linker…"
Jan 5, 2014
Harald Finster commented on Ralph Wu's blog post APM Planner 2.0 for Linux
"Hi Miguel,
just retried with the latest version from git (I used the zip download) with the following result:
- the #if defined error is gone (as shown in the checkin comments)
- all flite libraries are incompatible
- osgviewer is missing
I removed…"
Jan 5, 2014
Harald Finster commented on Ralph Wu's blog post APM Planner 2.0 for Linux
"Hello

Thanks for your feedback, Miguel!
Yes, I double checked that the libraries are there, but I will triple check ;-)
I suspect that some of them ore out of date.

BTW1: apologies for my previous messed up posting. For some reason the code…"
Jan 1, 2014
Harald Finster commented on Ralph Wu's blog post APM Planner 2.0 for Linux
"This is what I just tried to get this running with openSuSE 13.1(x64)
unzip apm_planner-master.zipcd apm_planner-master
qmake qgroundcontrol.pro
make


this fails with a syntax error:
src/ui/configuration/ApmFirmwareConfig.cc:665:36: error: missing…"
Dec 31, 2013
Harald Finster replied to Motion Man's discussion MOT_SPIN_ARMED issue
"Hello
unfortunately, I can't really help, but confirm this issue.
However I am not really sure if this is related to MOT_SPIN_ARMED.
I am using Multistar 20A Opto ESCs and often notice that some of the motors don't start spinning if I raise the…"
Dec 30, 2013
Harald Finster commented on Ralph Wu's blog post APM Planner 2.0 for Linux
"Hello
could you please give a more detailed description or a specific link which describes how you managed to build/compile this application?
I spent hours attempting to compile different versions of qgroundcontrol and the branch mentioned above…"
Dec 27, 2013