[time-nuts] Clocking a PIC16F628A from a Rubidium Standard

[Tom Van Baak]

> Come on, folks. never hook anything directly to the power line. The
> source is just too stiff. Use an opto. I used fiber optic isolation with
> my big DC power supply.
> Don

I used to agree, until actually tried it myself. Now this is how
I do my picPET 60 Hz data logging:

Simple 60 Hz AC Mains Cycle Detector
http://leapsecond.com/pages/ac-detect/

/tvb