SparkFun GNSS Flex pHAT - mosaic-X5 & IM19 IMU

The ultimate all-in-one GNSS Flex pHAT, featuring the Septentrio mosaic-X5 and an IM19 IMU for survey-grade, millimetre-level RTK precision with full tilt compensation.

1425.95

Not currently available

Our Code: SKU-011245

Supplier Link: [SparkFun MPN:29889]

Description

Achieve the absolute pinnacle of positioning performance with your Raspberry Pi using the SparkFun mosaic-X5 & IM19 IMU GNSS Flex pHAT. This is one of our most advanced GNSS receiver boards, combining the versatile Flex pHAT carrier with the industrial-grade, millimetre-level mosaic-X5 RTK receiver and the high-precision IM19 IMU. It's the ultimate all-in-one solution for professional surveying, industrial robotics, and critical autonomous systems.

The GNSS Flex pHAT acts as the bridge between your single-board computer (SBC) and the modular SparkPNT ecosystem. It mounts securely via an extended 40-pin header and connects to the included GNSS module using standardized 2x10-pin headers.

Multiple SBC Compatibility: The 40-pin header is designed for a direct connection to a Raspberry Pi, NVIDIA Jetson Orin Nano, Google Coral, or other compatible single-board computers.
Native USB Access: A dedicated USB-C port connects directly to the mosaic-X5's USB hardware for high-speed data access to its web server.
microSD Card Slot: Ideal for logging data on position, velocity, and time.
Mounting Hardware Included: Comes with the necessary standoffs, screws, and an extended header for a clean, stable setup.

Survey-Grade RTK Precision

At the heart of this pHAT is the Septentrio mosaic-X5, a multi-band, multi-constellation receiver known for its best-in-class reliability and performance.

Millimetre-Level Accuracy: Delivers an astonishing 6mm horizontal and 1cm vertical accuracy with RTK, plus timing precision down to five nanoseconds.
AIM+ Interference Mitigation: Features Septentrio's unique AIM+ technology, a powerful anti-jamming and anti-spoofing system that ensures unparalleled robustness and reliability in noisy RF environments.
Multi-Band & Multi-Constellation: Tracks all signals from all major constellations (GPS, GLONASS, Galileo, BeiDou, NavIC) for maximum satellite availability and fast, reliable fixes.

Intelligent Tilt & Dead Reckoning

Paired with the mosaic-X5 is the Feyman (FMI) IM19 IMU, which combines MEMS sensor data with the GNSS RTK positioning data to provide high-precision attitude measurements. This enables advanced features, such as tilt-compensated surveying and robust navigation during brief GNSS outages.

Survey-Grade Accuracy: Delivers roll and pitch measurements accurate to within 0.05 degrees.
Tilt Compensation: No more perfectly vertical survey poles! The IM19 can calculate a virtual digital level point at any tilt angle, revolutionizing field data collection.
Sensor Fusion: Provides a continuous navigation solution (dead reckoning) even during momentary GNSS signal loss, perfect for urban or obstructed environments.

Intuitive Control & Seamless Integration

This Flex Module is engineered to provide both a sophisticated user experience and a tightly integrated navigation solution, setting it apart from typical receivers.

Browser-Based Interface: Access the mosaic-X5's powerful, built-in web server from any browser via the USB interface for intuitive setup, monitoring, and data logging.
Command-Line Interface: For power users and automated testing, a full Command-Line Interface (CLI) is also available for deep configuration and control.
Pre-Configured for Fusion: By default, the mosaic-X5's COM4 is linked to the IM19's UART2, automatically feeding it the necessary NMEA data. The IMU then outputs a fully compensated position and attitude. This link can be easily reconfigured via onboard jumpers to suit your specific project needs.

This pHAT requires an external antenna. Users have a few options for connecting an external GNSS antenna to their GNSS receiver.

The included 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 simply 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.

This pHAT also requires a Raspberry Pi (or similar single-board computer). Users can find Raspberry Pi and NVIDIA single-board computers in our catalogue. By default, we use the Raspberry Pi's primary serial bus (i.e., TX: GPIO14/Pin 8; RX: GPIO15/Pin 9) to communicate with the GNSS receiver of the SparkPNT GNSS Flex module. However, users can also utilise any of the other interfaces.

Specifications

GNSS Flex pHAT:

40-pin socket for Raspberry Pi header
40-pin header for GNSS Flex modules
- Two 2x20-pin, 2mm-pitch male headers
  - Power
    - 3.3V
    - Backup power
    - USB bus detect (not a power source)
  - USB data
  - UART (x4)
  - SD card
  - I²C bus
  - PPS signal (x2)
  - LED indicators (x2)
  - Event indicators (x2)
USB-C connector
- Interfaces directly w/ GNSS Flex Module
Antenna bridge
- U.FL connector
- SMA connector
µSD card socket
Qwiic connector
Indicator LEDs
- PWR (Red)
- PPS (Yellow)
- RTK (White)
- PVT (Blue)
Twenty-four jumpers
- Raspberry Pi GPIO isolation (x16)
- LED power isolation (x4)
- I²C pull-up resistors (x4)

mosaic-X5 and IM19 GNSS Flex Module:

Septentrio mosaic-X5 GNSS Receiver
- GNSS Constellations:
  - GPS (USA)
  - GLONASS (Russia)
  - Galileo (EU)
  - BDS (China)
  - QZSS (Japan)
  - NavIC (India)
- SBAS Systems:
  - WAAS (USA)
  - SDCM (Russia)
  - EGNOS (EU)
  - BDSBAS (China)
  - MSAS (Japan)
  - GAGAN (India)
IM19 Inertial Measurement Unit
Two 2x20-pin, 2mm-pitch male headers
- 40-pin socket for GNSS Flex system
  - Power
    - 3.3V
    - Backup power
    - USB bus detect (not a power source)
  - USB (x1)
  - UART (x4)
  - SD card
  - PPS signal (x1)
  - LED indicators (x2)
  - Event indicators (x2)
U.FL Connector:
- GNSS Antenna (Active, Multi-band)
- 3.3V power for an active antenna
Dimensions: 44.0mm x 34.0mm (Approx. 1.73" x 1.34")
Four mounting holes:
- 4-40 screw compatible
- Hole centers: 39.0mm x 29.0mm
Header spacing: 36.0mm

Flex Module Interfaces:

USB: mosaic-X5 only (D+ and D-)
SD Card: mosaic-X5 only (CMD, CLK, and DATA)
Flex COM1: mosaic-X5 UART1
Flex COM2: mosaic-X5 UART2
Flex COM3: IM19 UART1 (TX and RX only)
Flex COM4: IM19 UART2 (TX and RX only)
PPS1: mosaic-X5 PPS
PPS2: N/C
EVENTA: mosaic-X5 EVENTA
EVENTB: mosaic-X5 EVENTB
RTK LED: mosaic-X5 GP_LED2
PVT LED: mosaic-X5 GP_LED

mosaic-X5 General Features:

Voltage Range: 3.135 to 3.465V
- Max current: 500mA
RTK Accuracy
- Horizontal: 0.6cm (±0.5ppm)
- Vertical: 1cm (±1ppm)
Channels: 448 (simultaneous tracking)
GNSS Frequency Bands:
- GPS: L1 C/A, L1PY, L2C, L2P, L5
- GLONASS: L1CA, L2CA, L2P, L3CSMA
- Galileo: E1, E5a, E5b, E5 AltBoc, E6
- Beidou: B1I, B1C, B2a, B2b, B2I, B3
- QZSS: L1 C/A, L1 C/B, L5, L2C
- NavIC: L5
- SBAS: Egnos, WAAS, GAGAN, MSAS, SDCM (L1, L5)
- L-band PPP
Time to Fix
- Cold Start: < 45s
- Warm: < 20s
- Reacquisition: 1s
Timing Precision: 5ns
Update Rate: 100Hz
Latency: < 10ms
VANT Voltage Range: 3.0 to 5.0V
- Max current: 150mA
Interfaces:
- UART (x4)
- Ethernet
- USB device (2.0, HS)
- SDIO (mass storage)
- GPIO user programmable (x2)
- Event markers (x2)
- Configurable PPS out

IM19 General Features:

Operating Range:
- Accelerometer: ±8g
- Gyroscope: ±1000°/s -Accuracy:
- Accelerometer Bias: ±5mg
- Gyroscope Bias Accuracy: ±0.2°/s
  - Roll/Pitch: ±0.025° (1σ)
  - Heading: ±0.25° (1σ)
- RTK: + 0.3mm/tilt°, with 200cm straight pole (1σ)
- Auto Steering Yaw: 0.25° (1σ)
Initialisation: ~1s
Footprint: 14.8mm x 18.4mm

Shipping Restrictions

This product contains a module from Septentrio. Considering the dual-use nature of Septentrio products, such as the mosaic-X5 and mosaic-G5 GNSS receiver modules, and the increased risk of diversion in these countries, any direct or indirect sales, transfer, export, or re-export of Septentrio Items or Items sold by Septentrio, to the following countries is prohibited, except if specifically approved by Septentrio:

Afghanistan, Armenia, Azerbaijan, Bosnia & Herzegovina, Burundi, Central African Republic, China, Congo, Cyprus, Eritrea, Georgia, Guinea, Guinea-Bissau, Haiti, Hong Kong, India, Iraq, Israel, Kazakhstan, Kyrgyzstan, Lebanon, Libya, Malaysia, Mali, Malta, Mongolia, Moldavia, Myanmar(Burma), Nicaragua, Pakistan, Saudi Arabia, Serbia, Singapore, Somalia, South-Sudan, Sudan, Sri Lanka, Syria, Taiwan, Tajikistan, Tunisia, Turkey, Turkmenistan, Ukraine, United Arab Emirates, Uzbekistan, Venezuela, Yemen, Zimbabwe.

This list is in addition to, and separate from, the countries to which the sale, supply, transfer, export, re-export, directly or indirectly, is prohibited under applicable sanctions.