On Fri, Apr 18, 2014 at 2:27 PM, Tom Van Baak <[email protected]> wrote:
> Andrea, > > This chip does what you want: http://leapsecond.com/pic/picpet.htm > Input frequency is 0.01 Hz to 100 Hz. Output is microsecond time-stamp and > event-count over RS232. > You use a PC to log and process the data (into frequency, period, counts, > etc.). PCs can do that without the chip. Connect the pulse to the DCD line of an RS232 port and it will get logged with a uSec timestamp. It works for any frequency from maybe 1kHz to 0Hz. The port tolerates volts from -12 to +12. I don't think you need any add chip to log pulses. -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
