Hello
I am trying to move from a toggle power switch to a NO momentary membrane
switch.

My circuit thoughts are :-
http://www.saurel.demon.co.uk/files/Membrane.bmp

(Caps not shown)
where the membrane switch S1 supplies power to the circuit at startup, which
boots the pic.
The first thing the PIC does is sets Pin B0 high, so S1 can be released.
When the PIC detects button press of another membrane switch ("OFF" - not
shown) pin B0 can be set low, thus powering off the circuit.

Is this a sound design concept, and anyone suggest how to do it better?
Can't find anything on Google / PIClist Archive or FAQ.
Thanks in advance for any help.

Les

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