Jinx wrote:
> From: Andre Abelian <engelec@EARTHLINK.NET>
> > I am looking for a diagram  without a pic that can do the
> > fallowing.
>
> > when input is HI output is LOW
> > when input is LOW output is LOW
>
> Take any logic gate and wire the output to ground ;-)
>
> Sorry <G> there need to be other input conditions specified
>
> > when input is pulsing output is pulsing too Hi and Low or Low and HI.
>
> Sounds like an inverter

Inverter with a cap to DC isolate the input, and a weakish pullup on the
In side of the inverter to Vdd?

  Mark