[lug] Time sync w/GPS or radio

[Nate Duehr]

Jason Vallery wrote:
> Hi All,
> 
> I'm a bit late to this thread, but I was working on a separate project
> using GPS and came across an interesting product.  Garmin makes a
> "puck" GPS receiver that just has a serial cable output on it.  It is
> a fairly dumb device that when powered up generates a NMEA 0183 data
> stream on the serial interface.  For $70 you can't beat the price.
> 
> You can see it here:
> http://www.amazon.com/gp/product/B000196BW6/ref=pd_cp_e_0?pf_rd_p=250314601&pf_rd_s=center-41&pf_rd_t=201&pf_rd_i=B0002HS3A0&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=0VEA94MZ10NYQYJF3BX5
> 
> If you look at the NMEA spec the data stream contains the UTC time.
> It seems like it would be pretty trivial to write up a shell script
> that monitors the serial interface and sets the clock based on the
> incoming data stream.
> 
> http://en.wikipedia.org/wiki/NMEA_0183
> 
> I just ordered one and I can't wait to play with it.

The little ones from Deluo work well too.

Tiny, magnetic so they'll stick to the roof of a car (well, most cars 
are fiberglass these days, but well... anyway...) and work well.

Nate