On 8/30/06, William Chops Westfield <westfw@mac.com> wrote:
> >> You can use a PIC10F... and not much else.
> >>
> I propose a pic10f, a 927-sized lithium coin cell, and one of those
> SMT cell-phone sounders; the whole thing would be about 10mm square.
>

  I was thinking to a $3 toy(Bla-bla) with loudspeaker and microphone
being able to store 20 seconds of mesage at standard speed or 60
seconds of message at low speed.
It has everything including starting button for PIR detector connection.

greetings,
Vasile
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