P
Piglit
- Jan 1, 1970
- 0
Have a need to emulate a flickering light, kinda like a faulty
fluorescent.
My first attempt (using a pic) has an 8 bit pseudorandom sequence
generator
the output being compared with the result of an a/d conversion of a
pot
(over turns the light on, under turns it off) hence am able to vary
the average duty
cycle, plus another pot controlling total loop time to slow down or
speed up the
flicker. It doesn't look very convincing - sure it all works as coded,
but it just
doesn't look random enough. Dunno if the brain can remember an 8 bit
pseudorandom
sequence or what. Unfortunately this has to drive a big incandescent
(via an opto
and a triac), so a "real" faulty fluro is out of the question. Any
better ideas ?
M
fluorescent.
My first attempt (using a pic) has an 8 bit pseudorandom sequence
generator
the output being compared with the result of an a/d conversion of a
pot
(over turns the light on, under turns it off) hence am able to vary
the average duty
cycle, plus another pot controlling total loop time to slow down or
speed up the
flicker. It doesn't look very convincing - sure it all works as coded,
but it just
doesn't look random enough. Dunno if the brain can remember an 8 bit
pseudorandom
sequence or what. Unfortunately this has to drive a big incandescent
(via an opto
and a triac), so a "real" faulty fluro is out of the question. Any
better ideas ?
M