SX/B and SX as a PID?

geekything

Has anyone done PID routines in SX/B? I'm comfy attaching a thermocouple but not so good with the software-side of PIDs [noparse];)[/noparse]

Or SX assembly would be fine and I'd translate it.

-marc

Steel

This may sound silly, but what is a PID? The PID I know is a Product ID number in USB Descriptors.

Bean

PID is Proportional, Integral, Derivative.
It is a control algorithm.

Bean.

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PJMonty

Steel,

PID is typically (but not exclusively) used in servo loops to control the actual motor. Here's the Wikipedia entry:

en.wikipedia.org/wiki/PID_controller

Thanks,
PeterM

CCraig

Andy Lindsay had some good posts a couple of months ago. It was for the BS2 and they worked great. I only tried the first samples until my son wanted his Boe-Bot back. Very good reading.


http://forums.parallax.com/showthread.php?p=649354


HTH, Chris

Dunnsept

sorry.. haven't been on the forums in ages. I implemented P and I (but ran out of code space for D) on an SX28 to use for my coffee roaster. I am going to ressurect it for controlling mash temps in my beer brewing setup. somewhere in the sandbox should be pics and I think the code from the coffee roaster (you'll have to search as it was quite a while ago)

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