I need to get a daily time update via a serial connection to a microcontroller in my device. This is for use in a commercial application, so I need something reliable - but of course cost is a driving factor as well.
Has anybody used something that you think I should take a look at?
Thanks, Scott Kelley
A garmin integrated antenna/GPS (12V in,rs232 out,NMAE)n
Depends on your geographical location. In Western Europe there is DCF 77. Excelent for 'once a day' time keeping. Such a service is probably also available in other parts of the world.
If your device (also) has internet access, you could synchronize to a pool of timeservers.
And there is GPS.
Take a look at
-- Kind regards, Gerard Bok
If this is for a commercial application, get yourself a proper GPS that comes with a PC interface that can carry the real time. There are dedicated GPS receivers for time standards keeping. I believe Leitch Video, and Torpey Time manufacture these. I have used both types in systems that I have worked on. They work very well with excellent flexibility, compatibility, accuracy, and stability.
-- JANA _____ "Scott Kelley" wrote in message news:gKydnY9qxLLjgjnZnZ2dnUVZ_s2dnZ2d@centurytel.net... I need to get a daily time update via a serial connection to a microcontroller in my device. This is for use in a commercial application, so I need something reliable - but of course cost is a driving factor as well. Has anybody used something that you think I should take a look at? Thanks, Scott Kelley
In message , Scott Kelley writes
Do you have the skills to break into one of the clocks controlled by various 'atomic' clock broadcasts? If so there seem to be several available. I have one (battery operated) sold here in the UK by LIDL at £3.99!! This is controlled from Germany but I imagine there are similar devices for WWV.
-- John
Actually, it would be WWVB, on 60 KHz. it is a simple one bit per second modulation scheme where the carrier is reduced by 6 dB. The data is available from NIST.
-- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
-- -17dB. http://tf.nist.gov/stations/wwvb.htm
Scott Kelley wrote: > I need to get a daily time update via a serial connection to a > microcontroller in my device. This is for use in a commercial application, > so I need something reliable - but of course cost is a driving factor as > well. >
Check out these guys
When I checked this out last year they were selling a kit with the module and antenna for $60 -- just begging to be connected to a microcontroller.
GG
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