Beitian Dual BN-220 GPS GLONASS Antenna Module

Combining GPS and GLONASS reception in one module gives a meaningfully stronger satellite fix than a GPS-only unit, especially in locations where either constellation alone would leave gaps in sky coverage. The BN-220 outputs standard NMEA data over a simple 4-pin TTL interface, so it drops straight into a flight controller's GPS port or a Raspberry Pi's UART without needing a dedicated driver or configuration utility.

Two onboard status LEDs give an at-a-glance read on module state: the TX LED flashes blue as data streams out, while the PPS LED stays dark until a fix is acquired, then flashes red once locked - useful for confirming GPS status during setup without needing a ground station connected. Running on a wide 2.8 to 6.0V supply range keeps it compatible with most flight controller and single-board-computer power rails directly.

Common uses are adding dual-constellation GPS to APM, Pixhawk and other open-source flight controller builds, Raspberry Pi and other SBC-based location-tracking or navigation projects, and general-purpose GNSS positioning where a plug-and-play module without extra driver setup matters.