GPS modulis NEO-7M-C

Features

• NEO-7M-C onboard, with high-gain active antenna
• IPX interface, for connecting different active antennas
• Chargeable backup battery, keeps the ephemeris data when power down, supports hot starts

Specifications

• TTL level, compatible with 3.3V/5V systems
• Baud rate 9600 only
• Operating voltage: 2.7V-5.0V (VCC input)
• Operating current: 35mA
• TXD/RXD impedance: 510Ω

Applications

• GPS Navigator
• Quadcopter Positioning

How to Use

In the case of working with a MCU:

• VCC: connects to 3.3V/5V
• GND: connects to GND
• TXD: connects to MCU.RX
• RXD: connects to MCU.TX
• PPS: connects to MCU.IO, timepulse output (optional)

http://www.waveshare.com/wiki/UART_GPS_NEO-7M-C