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worldgnat

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Dec 26, 2009, 5:09:53 PM12/26/09
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I just started to build my Makerbot watch today! It's all going
swimmingly except that I'm not sure which capacitors and LED's are
which. I have two capacitors in a white package, two in black, one in
clear with a mark and one in clear without, and I'm not sure what the
values are. Similarly with the LED's, I have 13 with tape and a mark,
13 with a mark, and 13 without anything. Can someone let me know what
the values are?

Other than that I think I'm fine; I just can't find anything on the
wiki or this group that explains which are which.

Thanks,
-Peter

bre pettis

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Dec 27, 2009, 4:14:30 AM12/27/09
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Peter Davoust

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Dec 27, 2009, 10:28:17 AM12/27/09
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Great! Thanks, I didn't see it.

-Peter

raphael

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Dec 27, 2009, 12:41:38 PM12/27/09
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Here's a nice accurate (crude) timekeeping program. More accurate than
using millis(). All in one file for beginners to comprehend.

I'll be commenting it and cleaning it up soon, especially around the
interrupt routine.

--
Raphael Abrams
Artist Engineer

web: teuthis.com
drawings: doodlebird.wordpress.com
hack space: nycresistor.com
email: rap...@teuthis.com

simple_watch.pde

raphael

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Dec 27, 2009, 12:45:32 PM12/27/09
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Just to explain, it uses the compare interrupt instead of the overflow
interrupt, so it's exactly accurate, instead of 976/1000. I may have a
number or two wrong, but once everything is set correctly, it will be as
accurate as the crystal.
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