It turns out OP (Bill Baker) is using a very nice GMR1000 GPS time standard:
http://www.masterclock.com/products/master-clocks/gmr1000/ So that's why he was asking about an off-the-shelf device to turn SMPTE into an hourly switch for his fog bell. Since the GMR1000 also has a network connection, the proposed Raspberry Pi solutions will work. In addition, the GMR1000 has a serial port that will output NMEA (GPZDA), so even a simple PIC or Arduino solution is possible. Given a choice between RS232 + Arduino on the one hand and LAN + Raspberry Pi + Linux + NTP on the other, I'd pick Arduino. But I know people that would throw Linux at this; everyone has their favorite hammer. In fact, I bet Walter Shawlee could design a simple TTL shift-register circuit that would parse the RS232 GPZDA bitstream and drive the fog bell on the hour. And a hundred years from now his TTL board and the bell would be the only parts still working. /tvb For more information read GMR1000.pdf and GMR+Series+User+Manual.pdf from the site above. > ----- Original Message ----- > From: "Bill Baker via time-nuts" <[email protected]> > Sent: Sunday, May 01, 2016 12:26 PM > Subject: [time-nuts] help > > My problem: I'd like some kind of off-the-shelf device that can take the > time code > and switch on or impulse another circuit-- specifically I'd like to trigger > a 180 year-old > fog bell (I'm a lighthouse nut as well, www.henryisland.com) on the hour and > maybe > be able to impulse my minute school clocks. I'm not at this group's > technical level, > so it's got to be pretty easy to program. So I need a box that I can program > with > SMPTE time in and a timed switch impulse out. Any ideas? > Many thanks, > W1BKR _______________________________________________ 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.
