Nice!
I like the PIR idea, for extra Zen points it should also always be
in rude mode while the display is blanked ;)
Cheers,
Robin.
On 13/09/2013 10:45, Morris Odell wrote:
Hi all,
I don’t have a great output of clocks what with work and all but here’s
one I just got going.
http://youtu.be/KiJ3dhK6-Ws
It uses a AVR Mega32 as the processor, a Motorola Oncore VP timing
receiver and has PIR switch to turn off the display when nobody’s there
(very Zen). The most interesting bit of design was the random number
generator used to index into the dictionary. It uses a zener noise
source and feedback circuit to ensure symmetrical distribution of 1’s
and 0’s. There’s a Von Neumann algorithm in the firmware to iron out any
residual asymmetry.
It’s amazing how the four letter word hypnotizes people who can’t wait
to see what it’ll say next…..
Morris
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