Gravity: GNSS GPS BeiDou Receiver Module - I2C&UART

The Gravity: GNSS GPS BeiDou Receiver Module is a multi-constellation positioning board compatible with Arduino, ESP32, micro:bit, and Raspberry Pi. It tracks BeiDou, GPS, GLONASS, and QZSS satellites to provide accurate coordinates, altitude, and time data. This module is ideal for students, hobbyists, and makers building vehicle tracking, weather monitoring, and robotics projects.

Multi-satellite joint positioning

By combining signals from BeiDou, GPS, GLONASS, and QZSS, the receiver detects more visible satellites simultaneously than single-system GPS units. This joint positioning capability improves overall accuracy to 2.0m CEP while speeding up initial position acquisition.

Resilience in challenging environments

Multi-constellation tracking maintains steady data collection even when signals are partially blocked by weather, vegetation, or terrain. This reliable reception makes the unit well suited for agricultural telemetry, marine navigation, and outdoor data logging.

Dual I2C and UART interfaces

The module features both I2C and UART data outputs for plug-and-play connection to popular development boards. It runs on a 3.3V to 5.5V DC supply and consumes approximately 40mA of current during operation.

Fast positioning lock times

The receiver achieves a time to first fix of 30 seconds from a cold start and just 2 seconds from a hot start. It connects to the included active ceramic antenna via a standard IPEX1 interface tuned to 1561 to 1575.42MHz.

Compact footprint and complete kit

Measuring just 27mm by 37mm, the compact board is easy to fit into space-constrained enclosures. Each package includes the GNSS receiver module, an IPEX1 active ceramic antenna, and a Gravity 4-pin sensor cable.

Downloads & documentation

• Product wiki (DFRobot)