I'm having problems with this as well. Just to confirm, we want one end of
the button in Vdd, the other end of the button connected to a resistor to
ground, then another resistor that connects to the capacitor, that connects
to ground. And then the Schmitt Trigger Inverted connects where the
capacitor and resistor meet?

Thanks

Mohammed

On 5/13/08, Maureen Gilmour <maureengilmour2007@u.northwestern.edu> wrote:
>
> Thank you! That worked.
>
> On 5/13/08, Jeremy Meisel <j-meisel@law.northwestern.edu> wrote:
> >
> > Yes, without the resistor, the output of the button floats high. This
> > way it is low unless it is
> > pressed in which case it is high.
> >
> >
> > ==============Original message text===============
> >
> > On Tue, 13 May 2008 12:06:26 am CDT "Maureen Gilmour" wrote:
> >
> > So the sequence should go Vdd => Button => 510 resistor => 330 resistor
> > =>
> > capacitor, then ground, + Schmitt Trigger inverter?
> >
> > --Maureen
> >
> > On 5/13/08, Jeremy Meisel <j-meisel@law.northwestern.edu> wrote:
> > >
> > > Try a pull down (510) resistor on the button before the 330 that leads
> > to
> > > the capacitor.
> > >
> > > Jeremy
> > >
> > > ==============Original message text===============
> > >
> > > On Mon, 12 May 2008 11:48:52 pm CDT "Maureen Gilmour" wrote:
> > >
> > > Does anyone know how to hook up the button? I've got power going into
> > one
> > > end of the button, a resistor coming out of the other end, and then a
> > > capacitor attached to the same place as the other end of the resistor.
> > > Also, the line running to the Schmitt Trigger Inverter is coming from
> > the
> > > same place as the other end of the resistor and one end of the
> > capacitor.
> > > Is this wrong? My circuit doesn't work like this, and I've checked my
> > > wiring everywhere else.
> > >
> > > --Maureen
> > >
> > > ===========End of original message text===========
> > >
> > >
> > >
> > ===========End of original message text===========
> >
> >
> >
>

-- 
___________________________
Mohammed Uzair Admani
Class of 2011
McCormick School of Engineering
MohammedAdmani2007@u.northwestern.edu