[avr-chat] Re: GPS based digital clock

[Steve Franks]

I don't remember where they came from, but I've got several reasonable
explanations of the NMEA strings from a gps - quite long, obviously,
so I won't post it directly, but email me and I'll send them out.
They were public domain as far as I know.

As far as hooking it up, the most standard NMEA stream is a one-way
(GPS->AVR) uart at 4800,n,8,1, almost all gps's will put that out one
way or another.  Most of the uarts are TTL-level, so you usually hook
them right into the avr.  I like the Trimble Lassen devices, myself.
A bit pricey in singles (~$50), but very compact, and at least you can
get them in singles - alot of the Sirf and Motorola stuff starts at
10k pricing.

Steve