u-blox NEO-6M GPS Module (with antenna)

The u-blox NEO-6M is a complete, low-cost GPS receiver module that has become the default entry point for hobbyists, students and makers learning satellite navigation in India. Built around the proven u-blox 6 positioning engine with 50 channels, it acquires and tracks the GPS L1 C/A signal and SBAS corrections (WAAS, EGNOS, MSAS, GAGAN) to deliver a stable position, velocity and time fix over a simple UART serial link. Most kits ship with a 25 x 25 mm ceramic patch antenna on a short cable and an on-board EEPROM plus backup battery, so configuration and almanac data survive power cycles for faster warm starts.

The module outputs standard NMEA sentences by default at 9600 baud, making it trivial to read with an Arduino, ESP32, Raspberry Pi or STM32 using libraries like TinyGPS++. Power comes from a 3.3 V regulated rail, and an on-board LDO on most breakout boards lets it run from 5 V logic. A blinking PPS/fix LED gives an at-a-glance lock indicator. With horizontal accuracy of roughly 2.5 m in open sky, it is well suited to logging, geofencing and basic position reporting rather than precision flight.

This module is ideal for first GPS projects, IoT trackers, weather balloons, rover dead-reckoning experiments and timing references. Note that the NEO-6M is an older, single-constellation (GPS-only) design that u-blox has marked end-of-life; for new autonomous drone or multi-constellation work, the NEO-M8N, M9N or M10 are better choices.