"Chris Head" wrote in message
news7dpg.85747$I61.65769@clgrps13...
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My preference for a simple way would be to use a PIC microcontroller
(pick your own preferred type here), and put something like a linear

cripes, why have the guys spend hundreds of dollars in development tools for
a single application.

simple solution, get 4 blinking LEDs, wire them in parallel. after an hour
they'll be random enough.