TWI_GPS

A GPS receiver talks and listens in NMEA sentences. This compact library provides a simplified programming interface to accept NMEA commands, and pass them via TWI (I2C) bus to a GPS receiver, and to collect NMEA report massages from the GPS receiver, to provide basic checksum validation, and to forward them via the TWI bus to the user application at a rate that the user application can regulate. It makes use of the Arduino Wire library, but is not implemented as a class derived from the Arduino Stream class. NMEA sentences are of the form . Messages are validated at the level of the matching the reported , but no further validation or parsing is provided.