On Thu, Feb 07, 2002 at 10:40:39AM -0600, Dale Botkin wrote:
> I use the watchdog.  Set it for max delay (around 2.3 seconds nominal) and
> go to SLEEP.  The watchdog will wake you up.  In mine I do two consecutive
> SLEEPs, so I get a new reading a little more than once every 5 seconds.
>
> Of course this won't do you a lot of good if you need to log anything
> resembling an accurate timestamp, but I have gotten several months out of
> three AA cells this way.  Mine was a 16F84 and DS1620, by the way - I
> think a 1620 would be fine with a slow clock, and it's only two more pins
> than an 18S20 and simpler software.

I have code to configure and read the DS1620 in my thermostat code. You
can find it on my PIC page:

http://www.finitesite.com/d3jsys

BAJ

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