NEO-6M GPS module with antenna and build-in EEPROM This module is compatible with APM2 and APM2.5, and EEPROM can save all your configuration data. Interface: RS232 TTL
Power: 3-5v
Baudrate default:9600bps Withbattery The battery Model is MS621FE,Need to weldin
You can download the test program directly from official website(u-center version 6.31 download (internet connection is required for installation)). Schematic: