Make your own Super- PID ... not that hard to make ! .... says electronics genius!

[Jonathan]

I started making a PID conroller a while ago, since as your quote quite rightly suggests, there's not that much to it. I've still got the code somewhere. However you'd surely be making life difficult trying to do PID (or PI) without a microcontroller. Zero voltage switching would be nice though.

[Ross77]

If you are going to go the bother of making a speed control I think it would be worth keeping the micro processor for the PID, as that is the bit that keeps the speed constant (depending on PID settings) and stops it bogging down under load.

As Jonathan said PID for speed control is not to difficult especially as the site gives you the code. Ive done it for Dc brushed motors and it works well.

[Buba b]

It a conspiracy !!!! all the clever people come out of the wood work and say its "easy" too !!!.
Its just a site i stumbled on and the whole point would be to make a PID controller to control the power draw. Without the micro processor it would be just be another speed control with a potentiometer aka : KBIC ( to my eyes anyways ! ) . The price of making this over buying the Super-PID makes it very tempting the learn PCB board software and get cutting but i had ago at Eagle awhile back and it frazzled my mind to say the least.
L8r