On Wed, Jun 25, 2014 at 5:10 PM, Bob Stewart <[email protected]> wrote:
> Is there an accepted standard interface for GPSDOs, or is that a murky > Microsoft-esque world of patents and lawyers? No. There is no standard and many (most?) don't have any kind of user interface at all, just the 10MHz output BNC connector. The simple thing would be to add some kind of LED that shows activity and a second LED that indicates a lock within some acceptable limit. The Trimble unit is both a GPS receiver and a GPSDO so it has the kind of serial interface you'd expect on a GPS receiver.It would not make sense to copy this because your GPSDO will already have a GPS receiver that will be sending status and accepting commands. One is you likely do NOT want is to force the user to have to connect a PC in order to operate the user interface. Much better to use a self contained $5 LCD display. It is very easy to add a text-only LCD to most any project that uses a micro controller and it is not much harder to add a graphical LCD of the type used on older cell phones. These can do graphics. -- 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.
