A compact multi-constellation GNSS positioning module based on the AT6558 chip with 32 tracking channels. It simultaneously receives signals from six satellite navigation systems: GPS, BeiDou, GLONASS, Galileo, QZSS, and SBAS (WAAS, EGNOS, GAGAN, MSAS) for accurate joint positioning.

The module outputs via serial UART and is compatible with Arduino, Raspberry Pi, STM32, and other microcontroller platforms. An onboard rechargeable battery speeds up hot-start acquisition, and an E2PROM stores configuration settings between power cycles.

Key Features

• 6-System GNSS – GPS, BeiDou, GLONASS, Galileo, QZSS, and SBAS
• 32 Tracking Channels – AT6558 multi-mode satellite chip
• Dual Antenna Ports – SMA and IPEX connectors
• Onboard Rechargeable Battery – XH414 for fast hot-start acquisition
• E2PROM – Stores configuration settings
• Antenna Protection – Built-in detection and short circuit protection
• A-GNSS Support – Assisted GNSS for faster fixes

Specifications

• Operating Voltage – 3.3–5V
• Current Draw – <25mA (continuous operation)
• Positioning Accuracy – 2.5m CEP50 (open field)
• Cold Start TTFF – ~32 seconds
• Cold Start Sensitivity – -148dBm
• Tracking Sensitivity – -162dBm
• Interface – Serial UART
• Dimensions – 13.1 × 15.7mm

Ideal For

• Drone and autonomous vehicle navigation
• Vehicle tracking and fleet management
• Handheld GPS devices
• Wearable positioning devices

Package Contents

• 1× GPS + BDS BeiDou dual module
• 1× Connector
• 1× Pin header

Resources

• DFRobot Wiki