A chip like this might be helpful:
http://www.micromegacorp.com/downloads/documentation/uMFPU-V3_1%20Datasheet.pdf
It will even parse the NMEA strings.
A chip like this might be helpful:
http://www.micromegacorp.com/downloads/documentation/uMFPU-V3_1%20Datasheet.pdf
It will even parse the NMEA strings.