Adafruit Ultimate GPS HAT for Raspberry Pi A+/B+/Pi 2 adds Adafruit’s celebrated Ultimate GPS on your Raspberry Pi, so you can add precision time and location to your Raspberry Pi Model A+, B+, or Pi 2.
Adafruit Ultimate GPS HAT for Raspberry Pi A+/B+/Pi 2 is based on Adafruit Ultimate GPS, with the addition of a coin-cell holder for RTC usage, break-outs for all the Raspberry Pi's extra pins and plenty of prototyping area for adding LEDs, sensors, and more.
Adafruit Ultimate GPS HAT for Raspberry Pi A+/B+/Pi 2 takes over the Raspberry Pi's hardware UART to send/receive data to and from the GPS module. So, if you need to use the RX/TX pins with a console cable, you cannot also use this HAT. Instead, you'll have to use a composite or HDMI monitor and keyboard to log in, or use SSH to connect over the network to your Pi.
Adafruit Ultimate GPS HAT for Raspberry Pi A+/B+/Pi 2 comes as a fully assembled GPS + PCB and an additional 2x20 GPIO header. Some light soldering is required to attach the 2x20 GPIO header to the HAT but it's fast and easy for anyone with a soldering iron and solder. You can also swap the plain female header to suit your projects.
Adafruit Web Site: https://www.adafruit.com/product/2324