PICers - I'm thinking of breadboarding a pulsed IR spotlight. The idea is to
pulse LEDs on for ~10 msec then switch off for ~100 msec. Straightforward to
programme.

It'll pull a hefty current pulse from the battery - 12V gel - and i got to
wondering what could possibly go wrong as the battery discharges and terminal
volts go down?

ie Could the PIC could freeze up and latch the LEDs in an ON state as Vcc
declines? What should I be on the look out for & ways to guard against? If I
get round to building a full array, it'll be 9x7 IR LEDs @ maybe $1 each so u
absolutely, positively don't want a latch on. :( Looking for ideas ....
Thankz - Debbie

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