The gpsBUG is built around the gms-g9 receiver module. The gms-g9 is an ultra compact POT (Patch On Top) GNSS module with a built-in GLONASS and GPS patch antenna. It has ultra high sensitivity (-165 dBm) and a high update rate (default is 1 Hz). Acquisition current consumption is 35 mA typical, with tracking rated at 29 mA typical. However, the gpsBUG includes a power up / down line, enabling you to save power in battery critical applications.
This is a half size stickyBUG and occupies one half of a stickySHIELD. This means you can have two half size bugs per shield or you can have one half size BUG and two quarter size BUGs per shield. They can be stacked on other stickySHIELDs if required. Only one gpsBUG should be used for any given design.
This shield uses RS232 communication on the Tx2 and Rx2 pins. The nature of simple RS232 communication means that it is not recommended you use another stickyBUG that shares RS232 communication on pins Tx2 and Rx2.