Hookup Guide
Schematic
DatasheetProduct Overview
Maximize precision while minimizing power and weight with the SparkPNT mosaic-G5 P3 GNSS Flex Module. This advanced module features Septentrio's compact mosaic-G5 receiver, creating a solution needed for autonomous systems, robotics, and portable surveying tools where Size, Weight, and Power (SWaP) constraints are critical.
As part of the SparkPNT Flex ecosystem, this module is designed to be easily swappable for repairs or upgrades. It connects to your carrier board via standardized 2x10-pin headers, breaking out USB, dual UARTs, and key timing signals.
Miniaturized Precision with mosaic-G5
At the heart of this module is the Septentrio mosaic-G5 P3, a receiver that delivers the same performance as the mosaic-X5 but in a 60% smaller package that consumes 40% less power.
- Millimeter-Level Accuracy: Delivers 6mm horizontal and 1cm vertical accuracy with RTK.
- Precise Timing: Features a PPS timing resolution of 1.4ns and event-trigger accuracy <3ns, making it ideal for exact time-synchronization applications.
- AIM+ Interference Mitigation: Equipped with Septentrio's AIM+ technology, offering best-in-class protection against jamming and spoofing to ensure reliability in hostile RF environments.
- Multi-Band & Multi-Constellation: Tracks all signals from all major constellations (GPS, GLONASS, Galileo, BeiDou, QZSS) simultaneously.
Configuration & Advanced Control
The mosaic-G5 offers professional-grade control and configuration for advanced users.
- Flexible Protocols: Supports industry-standard NMEA, RTCM v3.x, and the highly efficient Septentrio Binary Format (SBF).
- Sophisticated Software: Configure and monitor the module using Septentrio's RxTools suite or via a robust Command-Line Interface (CLI) over USB or Serial.
- Interfaces: Access two hardware UARTs, two GPIO pins, two PPS outputs, and two Event inputs through the pHAT's headers.
- RTK Base functionality due Q2 2026: The initial mosaic-G5 P3 firmware does not support RTK Base and it can not generate RTCM corrections. Septentrio will add base station capability to the mosaic-G5 P3 and P3H in a firmware release currently planned for the Q2 2026.
This module requires an external multi-band antenna and a GNSS Flex carrier board. Users should have two options for connecting an external GNSS antenna to their GNSS receiver.
- The GNSS Flex module has a U.FL connector for an external antenna.
- For a sturdier connection, the SparkFun GNSS Flex pHAT includes an SMA connector bridged to a U.FL connector. Users need to jumper the U.FL connectors on both the SparkPNT GNSS Flex module and SparkFun GNSS Flex pHAT with a short U.FL cable.
