Description The GPS Module v2.0 is a high-performance GNSS positioning module built around the AT6668 chip for accurate and reliable satellite positioning. It supports multi-frequency and multi-mode GNSS reception across GPS/QZSS, BD2, BD3, GLONASS, GALILEO, and QZSS, enabling multi-system joint positioning or single-system independent positioning with strong anti-interference capability. The GPS Module v2.0 includes an external active GPS/BD antenna with a 1 m cable, a DIP switch for flexible TX/RX and PPS pin routing, and PPS output for precise timing. It is designed for stackable M5Stack host systems and is suitable for navigation, IoT positioning, remote monitoring, smart city, home automation, and industrial automation projects. Notice: This product is EOL (End of Life). For new designs, consider Module GPS v2.1 as the newer version. When used with the Basic host, G12 is a strapping pin during startup and must remain low; switching it ON during startup may prevent the device from booting. G25 is shared between PPS output and the speaker input, and Core2 shares G2 with the speaker pin, so only one of the conflicting functions should be used at a time. Features GPS Module v2.0 supports GPS/QZSS, BD2, BD3, GALILEO, and GLONASS positioning systems. Multi-frequency, multi-system GNSS reception with 50 channels. Positioning accuracy below 1.5 m (CEP50) and update rate up to 10Hz. External active GPS/BD antenna through an SMA connector. PPS signal output for precise timing applications. DIP switch routing for selectable UART and PPS pin groups. Supports module stacking and development with UiFlow1, UiFlow2, and Arduino IDE. Specifications Type GNSS positioning module with external active antenna SoC AT6668 Supported satellite systems GPS/QZSS/BD2/BD3/GAL/GLO Frequency bands BDS B1I+B1C; GPS/QZSS/SBAS L1; GALILEO E1; GLONASS R1 Channels 50 channels Positioning accuracy