On Nov 28, 2007 8:56 AM, Steve Niles <[EMAIL PROTECTED]> wrote: > Newbie question: Does anyone know of a circuit that could use the 1PPS > output of my Trimble Thunderbolt to drive a standalone real time clock > display (hh:mm:ss)?
The 1PPS does not contain the time of day obviously, but could be a 1Hz timebase for a simple microcontroller (Microchip PIC, Atmel AVR, PICAXE, etc.) . An example of a simple time of day clock using a Microchip PIC, Microchip Application Note 615. <http://ww1.microchip.com/downloads/en/AppNotes/00615b.pdf> For an example of using an external oscillator source for a timer see: Microchip App Note 580. <http://ww1.microchip.com/downloads/en/AppNotes/00580c.pdf> But it might make more sense to interface with the GPS module directly such as this example (for a HP Z3801A). <http://www.realhamradio.com/dclock.htm> -Michael _______________________________________________ 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.
