[16F871] Power on RA4 before power on vdd?

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  1. - 1st September 2005, 08:23 #4
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    Acetronics2
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    Wink Fryed PICs

    Hi, Buzz

    Why not use a stupid N Mosfet ( 2N7000 or BS 170 ) to switch your Buzzer ???
    It would provide all the insulation you need ...

    just invert your output level ( better for Power-on response of the Buzzer... hmmmm ? ) or use a P-Mosfet ( BS 250 ) and buzzer between Drain and ground ...

    Alain

    PS : 13v ... doesn't make you remember something about programming your PIC ??? ... jam at sight !!!
    Last edited by Acetronics2; - 1st September 2005 at 08:27.
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