If you would care to be more specific about your requirements I could make some suggestions.

I assume (gosh I hate that word) that accuracy is an issue? If not, then why not consider TTL or some such.
Would you get what you want by clocking the PIC16F84 at 250kHz? (RC timing) or even slower?

Maybe more questions than help... but if you can specify how accurate the 10 mins needs to be, the 24 hours needs to be.. then it may make a few wheels turn over.


Des

>>> Andrew <aschenk@WEBHART.NET> 6/3/99 1:04:51 pm >>>
Hey all,
        I'm a new person to this PIC stuff and was wondering what the best way is
to generate a low frequency < 1 Hz. I want to create a pulse that is low
for 1 hr and hi for 10 min. Also a low for 24 hrs and high for 10 min.
Ideally I would like to use a 1 16F84 but think that won't be possible. a
code snippit would be really helpful if anybody has one.

Another project I have in mind requires measuring a frequency and outputing
a pulse that is delayed from the input. I have an equation worked out, but
need to measure the input frequency, how do I go about doing this? Again
this is a relatively low frequency and would like to use a 16F84.


Thanks
Andrew