Hi everybody

...
Christof wrote:
>
> On 26 Sep 97 at 19:02, Tim Kerby wrote:
>
> > At 08:20 24/09/97 +0100, you wrote:
...
> > >ideas on motion dectection please let me know. It dosent have to be linear
> > >just digital will do. IE motion /no motion but the sensivtivity must be
> > >quite good.
...

        How about a paltform with 2 or 3 mercury bubble switches (organized on
an ortogonal structure). When arming the device you can read the current
status of the switches, and them react to any change on taht staus.


        best regards

        Jorge F