Using the new 1/4 Scale servos with LVLM

[mathterizer]

Phil,

I was under the impression that 'OP' was a common forum acronym (original post), sorry about that.

Thanks for the additional details. This is exactly where I planned on going with my testing. We have used both styles in the past.

In reality, Continous rotation AND 180 Deg mode both put out PWM pulses in the same range.

CR servos are meant to translate them into Speed and Direction.  180 Servos are meant to translate them into Fixed Position commands

You say that you have been testing in the Schematic Editor (SE). I plan on writing vi's. We have found the servo behavior in the SE is problematic (bleed over). We use it marginally to locate positions, but typically end up making a vi with a front panel that pushes values to all servos as we zero in on our 'numbers'.

Maybe we can zero in on some ranges that define types of behavior - you seem to be on that track.  

Perhaps we can find some internal diagrams or spec sheets that could lend us some clues.

In a different thread Jerry_dcjx indicated that when he tried the HS-755HB in the LVLM 2010 it moved once and locked up. He said he couldn't get acceptable response in the LVLM 2012 for it at all.

Thanks!

[GEARS-Inc]

Any luck testing the two 1/4 Scale servos?

Phil.

[mathterizer]

Sorry, we haven't taken the time to experiment yet since the kids' current solution doesn't use one. I did notice that the FIRST FTC forums are citing the same behavior for these servos when using RobotC. So, it looks like it might be a Tetrix 'controller' issue as much as anything.

We realize that we will likely have to attempt to force a desired behavior - in spite of the inablilty to 'predict behavior' - if it comes to the point they want to use one.