When [Sahas Chitlange] went searching for a GPS tracker for his beloved Pumpkin ... The heart of the device is an A9G GSM/GPS board, based on the RDA8955 system-on-chip. [Sahas] combined this ...

What followed was an onslaught of GPS devices most noticeable ... device from scratch. The GPS tracker that [Vadim] created makes use not just of GPS, but of the GSM network as well.