The typical GPS module has a built-in antenna, and it provides an NMEA
standard serial interface which has lat/long and time, as well as a 1PPS
output.
I have already written code for my previous scope clock to parse the
NMEA strings.
I also am providing a DS1307 RTC chip with backup battery, for just in
case. Software can find out if the GPS module is locked to its signal or
not, and switch over gracefully.
On 1/20/16 8:24 AM, gregebert wrote:
I've never used a GPS receiver module, so I'm wondering if the units
typically do all of the calculations and provides lat/long info, as well as
time (UTC I assume) ? Is the receiver sensitive enough that a small
indoor antenna is sufficient ?
--
David Forbes, Tucson AZ
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