About

Gender

Male


Location

Zurich


About Me:

mecanical ingeneering student at ETH Zürich


Please tell us a bit about your UAV interest

Involved in project workin with multicopters


Hometown:

Entlebuch


Activity Feed

Roman Hofstetter replied to Roman Hofstetter's discussion Modelling the Arducopter Controller in Simulink
"I have never used HIL and therefore I don't have any clue about it. I have just read on the web, that it exists. So unfortunately I can't help you with your questions."
Mar 10, 2014
Roman Hofstetter replied to Roman Hofstetter's discussion Modelling the Arducopter Controller in Simulink
"Is it easy to find this kind of model that is designed in simulink? So that I can import and easily start to change my codes?

I don't think you will find a finished model for a t-rex 700 so you can just import it. But if you have some knowlege in…"
Mar 10, 2014
Roman Hofstetter replied to Graham Pollock's discussion Trouble with a hex voltage
"That's what I meant."
Feb 26, 2014
Roman Hofstetter replied to Graham Pollock's discussion Trouble with a hex voltage
"Hi
In my eyes, there are two options:
First you could simply look up the specifications of the motors you use and see what their maximum current is.
Second you could simply measure it. Remove the propellers, give full throttle and measure with a…"
Feb 25, 2014
Roman Hofstetter replied to Roman Hofstetter's discussion Modelling the Arducopter Controller in Simulink
"Hi
After going through a lot of code I finaly found what I was looking for. The command that is sent to the motor can be found in AP_MotorsMatrix.cpp in the output_armed() function (around line 100). The factors (roll_factor, pitch_factor,…"
Mar 16, 2013
Roman Hofstetter replied to Georg's discussion Send Parameter to MP
"It's some time ago we had this problem. But here a little sum up what to do if you are in the same situation.

The simplest way is to overwrite a variable you don't use at the moment.
To send a new variable you have to write your own MAVLink library…"
Mar 16, 2013
Roman Hofstetter posted a discussion
Hi guysFor my Bachelor thesis I am trying to model the JDrones hexa in MATLAB/Simulink. So far I finished modelling the multirotor itself. Now I would like to model the controller. And here my question arose: How does Arducopter calculate the…
Mar 15, 2013
Roman Hofstetter replied to Petrus Botha's discussion How do you calculate quadcopter lifting capability?
"I know it's an old topic, but for all those finding it with google or anyhow, here another link:
www.ecalc.ch"
Dec 31, 2012
Roman Hofstetter replied to Georg's discussion Send Parameter to MP
"Is there anyone, who could help us with this?
Up to now we have just overwritten an existing value. We took one, we are not interested in right now. But that's not a proper solution. So we would like to know how to track some new variables in…"
Nov 28, 2012