ReadyToSky BN-880 GPS Module

The ReadyToSky BN-880 combines a GNSS receiver and a built-in compass in one module for flight controllers running ArduPilot or iNav. Its active antenna gives a stable satellite fix for navigation, position hold and autonomous waypoint missions on FPV and autonomous drone builds.

Key features

• Active patch antenna for reliable satellite acquisition
• Built-in HMC5883L electronic compass for magnetic heading alongside GPS position
• TTL-level serial output with LED status indicators — the TX LED flashes with data output, and the PPS LED lights only once a fix is acquired
• TTL-level serial output; no driver needed when used with a Raspberry Pi
• 6-pin connector at 1.25mm pitch, with a 15cm cable included

Specifications

• Constellations: GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS
• Channels: 72
• Compass: HMC5883L (built in)
• Input voltage: 2.8-6.0 V DC (typically 3.3 V or 5 V)
• Current draw: 50 mA at 5 V
• Update rate: 1-10 Hz (1 Hz default)
• Horizontal accuracy: 2 m in open sky
• Operating temperature: -40 to +85 °C
• Weight: 11 g
• Connector: 6-pin, 1.25mm pitch
• Cable: 15cm, included

Mount the module away from high-current wires and strong magnets where practical, then complete the flight controller's GPS and compass calibration before flight. It only feeds position and heading data to a flight controller — it isn't a standalone navigation unit.