Brand new and better than ever, we've replaced our Adafruit GPS shield kit with this assembled shield that comes with an Ultimate GPS module. This GPS shield works great with any "Arduino shaped" board that has SPI and UART pins available, and is designed to log data to an SD card. Or you can leave the SD card out and use the GPS for a geocaching project, or maybe a music player that changes tunes depending on where you are in the city.

• -165 dBm sensitivity, 10 Hz updates, 99 channels
• Low power module - only 30mA current draw, half of most GPS's
• Assembled & tested shield for Arduino Uno/Duemilanove/Diecimila/Leonardo (not for use with Mega/ADK/Due)
• MicroSD card slot for datalogging onto a removable card
• Built-in datalogging to flash
• PPS output on fix
• Internal patch antenna + u.FL connector for external active antenna
• Power, Pin #13, and Fix status LED
• Big prototyping area

The shield is built around the MTK3333 chipset, a no-nonsense, high-quality GPS+GLONASS module that can track up to 33 satellites on 99 channels, has an excellent high-sensitivity receiver (-165 dB tracking!), and a built-in antenna. It can do up to 10 location updates a second for high speed, high sensitivity logging or tracking. Power usage is incredibly low, only 30 mA during navigation.

Specifications:

• Satellites: 33 tracking, 99 searching
• Patch Antenna Size: 15mm x 15mm x 4mm
• Update rate: 1 to 10 Hz
• Position Accuracy: < 3 meters (all GPS technology has about 3m accuracy)
• Velocity Accuracy: 0.1 meters/s
• Warm/cold start: 34 seconds
• Acquisition sensitivity: -145 dBm
• Tracking sensitivity: -165 dBm
• Maximum Velocity: 515m/s
• MTK3333 Operating current: 29mA tracking, 35 mA current draw during navigation
• Output: NMEA 0183, 9600 baud default
• DGPS/WAAS/EGNOS supported
• FCC E911 compliance and AGPS support (Offline mode : EPO valid up to 14 days )
• Up to 210 PRN channels
• Jammer detection and reduction
• Multi-path detection and compensation
• Datasheets, PCB files, Fritzing objects and more available in the tutorial