1hz clock

The logical and high-tech solution would be to simply use an RTC which has a precision 1Hz output! Or, you could use a receiver for the time signal radio service wherever you are on the planet. Is there some reason you don't even reveal which continent you are on?

  1. I was thinking of an RTC, but that would be sort of cheating and an oxymoron. (and expensive) (A very precise clock to drive a homemade not-so-precise clock?)

  2. US of A. I don't want the radio. I think I have decided on a crystal.

How about this, though?:

Send the 32.768kHz to a 12 bit counter, now we have 32,768/2^12 = 8. Then get a decade counter, and tie 'Q7 to reset. Then, when counter reaches 8th output, it "overflows." Would this give me a fairly precise 1Hz clock?