31 Aug
2006
31 Aug
'06
12:39 p.m.
Brent Hilpert wrote:
I was thinking of going for a new-old hybrid design
where one stayed with a
string of decade counter/displays and programmed a microcontroller as a TOD
clock which then pumped the counter string at 1Hz or 1/60Hz, with bursts of
fast pulses to invisibly jump over the 60 to 99 range. Any old frequency/event
counter could be turned into a clock with no or minimal modification. With the
micro continuously powered, one could power up/down the old power-hungry stuff
without having to manually set the time on every occasion.
I'd hazard a guess you won't be running this thing 24/7 at the South Pole
unless the 'energy accountants' are willing to include it in the heating
budget :)
Well can't you use neon tube logic and nixie tubes + a few diodes to
make a clock. This ain't high freq stuff here.