U-BLOX NEO-7N module, compact and excellent performance • parameters can be set via serial port and saved in EEPROM • with SMA interface, you can connect a variety of antenna, strong adaptability • compatible with 3.3 V / 5 V level for easy connection to a variety of microprocessor systems • back-up rechargeable battery on board • with micro USB, no need for USB-TTL tools • with TTL interface • onboard ceramic antenna • sample code: https://playground.arduino.cc/UBlox/GPS • evaluation software (U-Center) available for download, supply voltage: 3.3 to 5 VDC (or by USB cable) • connections: VCC (+5 V), GND (ground), TX, RX, PPS (time pulse) • default baud rate: 9600 baud • dimensions: 4 x 2.5 x 1.5 cm • weight: 15 g