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Topic: Help newbie with closed-loop servo control (Read 3 times) previous topic - next topic

JimboZA

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I think they use closed loop in that the pan/tilt platform position always follows the joystick position. Their open loop video below just uses the joystick to operate what are probably continous rotation servos.


Ah ok, that makes sense.
Roy from ITCrowd: Have you tried turning it off an on again?
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retrolefty

I think the videos are just misusing the terms 'open loop' and 'closed loop'. If there is no position signal being electrically sent back to the controlling device then they are always being controlled 'open loop' via their manually operated controller and only the servo(s) is always operating as a 'closed loop' device. Because they say something doesn't make it a fact, it's the Internet dudes.  ;)

Lefty

JimboZA

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Because they say something doesn't make it a fact, it's the Internet dudes.


NO! Surely not Lefty?.....

You mean that sometimes the Internet is, like, well, wrong?

Surely Wikipedia's always right? Say it's so!
Roy from ITCrowd: Have you tried turning it off an on again?
I'm on LinkedIn: http://www.linkedin.com/in/jimbrownza

retrolefty


Quote
Because they say something doesn't make it a fact, it's the Internet dudes.


NO! Surely not Lefty?.....

You mean that sometimes the Internet is, like, well, wrong?

Surely Wikipedia's always right? Say it's so!


Have no fear, I'm on it.

http://xkcd.com/386/

Lefty

JimboZA

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Have no fear, I'm on it.


Thank Goodness.... I was just reading up on how to perform an auto-appendectomy, and I'd hate to take my appendix out with the wrong instructions.
Roy from ITCrowd: Have you tried turning it off an on again?
I'm on LinkedIn: http://www.linkedin.com/in/jimbrownza

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