The purpose NMEA Tools is to log your RAW GPS information to a file on your SD card. Also, it can parse a NMEA file. Features: 1. Log RAW NMEA sentences. 2. Display the route in Google Map. 3. Show latitude, longitude, altitude, speed, PDOP and HDOP. 4. Support background logging. 5. Parse NMEA files. 6. View NMEA files.