Soon,

I am using a SN754421 H-bridge chip (same as the link below) although an
L293D would work.  In fact, be sure to look at the link in my previous
message because it has some schematics, sample code, and an example of a
full PID (though not the source for that one) on a small robot.  While it is
not a full implementation, the attendant data and links should answer most
'getting started' questions.

Dan

> Hi Dan
>
> I am tring to make a PID motor controller for my robot. Same as you i am
> using PWM to control the motor.What kind of driver are you using?
>
> regards
> ----- Original Message -----
> From: Dan Creagan <dcreagan@SCHOLARS.BELLEVUE.EDU>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Saturday, January 29, 2000 12:25 AM
> Subject: Re: PID control using PIC
>
>
> > I use the 16F876 (and 16F873 and 16C73A)  on robot drive motors. The PWM
> > outputs are useful for controlling the motors.  What kind  of PID
control
> > are you wanting to do?
> >
> > There is a simple hookup of a single channel (one motor) at
> > http://204.233.101.40/robots/mogotut/simplemotor.htm that might help.
> There
> > are some links on there that describe how to make a more complete PID,
and
> > there is software for a simple (proportional gain only) feedback for the
> > motor experiment.  The code is in Pic Basic Pro - but could be converted
> to
> > about any language fairly easily (which is why I chose PBP).
> >
> > Dan
> >
> > > Hello Everyone
> > >
> > > I am wondering whether it is possible to have PID control using 16F84
or
> > > 16F876. And where can I find the source code , Thanks