The M5Stack Unit GPS / BDS is a high-precision GNSS unit designed for global positioning and navigation. It integrates the powerful ATGM336H module, based on the AT6668 chip, and supports multiple satellite navigation systems, including GPS, BDS, GALILEO, and GLONASS. The external active SMA antenna ensures reliable signal strength and precise location tracking, even in low-reception environments. With a positioning accuracy of less than 1.5 meters and support for multi-system positioning, the unit is ideal for applications in vehicle navigation, IoT devices, drones, and wearables. Thanks to its user-friendly interfaces and robust construction, it is versatile and compatible with platforms such as Arduino and UIFlow.

Features:

• Multi-satellite support: Compatible with GPS, BDS, GALILEO, GLONASS, QZSS, and SBAS for maximum flexibility.
• Precise location: With a positioning accuracy of less than 1.5 meters, the unit offers the highest precision.
• External active antenna: The SMA antenna provides stable signal strength with 30 dB gain.
• Fast signal processing: The AT6668 chip enables quick calibration with a cold start time of only 23 seconds.
• User-friendly communication: Supports UART interface with a standard baud rate of 115200bps.

Technical specifications:

• Manufacturer: M5Stack
• Manufacturer SKU: U190
• Chip: AT6668
• Supported systems: GPS, BDS, GALILEO, GLONASS, QZSS, SBAS
• Channels: 50
• Communication: UART (Standard: 115200bps)
• Accuracy: <1.5 m (CEP50)
• Sensitivity: Tracking -162 dBm, Acquisition -160 dBm
• Antenna: SMA active, 30 dB gain, frequency range 1555–1580 MHz
• Power consumption: Standby 31.64 mA, Operation 40.90 mA @ 5 V
• Dimensions: 71.4 x 24 x 8 mm
• Weight: 58 g

Delivery includes:

• 1x M5Stack Unit GPS / BDS
• 1x External active SMA antenna (1 m cable length)
• 1x HY2.0-4P cable (20 cm).