Gravity: GNSS GPS BeiDou Positioning Module w/ RTC - I2C&UART

Description Gravity: GNSS GPS BeiDou Positioning Module w/ RTC - I2C&UART Integrates GNSS GPS BeiDou with real-time clock Automatically calibrates onboard RTC chip Reduces power consumption by disconnecting GNSS Provides accurate longitude, latitude, time, altitude Supports I2C and UART output for broad compatibility The Gravity: GNSS GPS BeiDou Positioning Module w/ RTC - I2C&UART integrates satellite positioning capabilities with a real-time clock (RTC). It automatically acquires satellite time based on a preset calibration period, ensuring precise calibration of the onboard RTC chip. This process effectively mitigates time errors that may arise during prolonged operation or accidental disruptions. The system conserves power by automatically disconnecting the GNSS chip after calibration, thereby reducing overall power consumption compared to GNSS-only solutions. Users can also configure the module to function continuously as a positioning device, providing accurate data on longitude, latitude, time, and altitude. The module supports two data output types: I2C and UART, and is compatible with Arduino, ESP32, Raspberry Pi, and other mainstream control devices. It is particularly suitable for applications requiring extended operational hours and high-precision timekeeping, such as astronomical observation timers, NTP servers, and outdoor wireless sensor time synchronization. This module offers a significant improvement over traditional GNSS modules by incorporating the ability to deactivate the GNSS when not in use, leaving only the RTC module active to maintain time, thus achieving lower power consumption. View more What's Included 1x Gravity: GNSS Positioning & Timing module 1x GPS / BeiDou Active Ceramic Antenna (IPEX1 Connector) 1x Gravity 4P sensor cable 1x 10P connector Dimensions 32 x 42 mm Specifications Operating Voltage: 3 to 5V DC Output Signal: I2C/UART GNSS IC: L76K GNSS Accuracy: 2.0m CEP First Positioning Time: 30s for cold start, 2s for hot start Operation Current: 46mA with GNSS enabled, less than 1mA with GNSS chip off Antenna Interface: IPEX 1 Antenna Frequency: 1561 to 1575.42MHz ±3MHz RTC IC: SD3031 Time Range: Years 2000 to 2099 Time Accuracy: ±3.8ppm at 25°C