7SEMI MAX-M10S GNSS development board front view showing u-blox MAX-M10S module and SMA antenna connector

7Semi MAX-M10S GNSS Receiver Breakout

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$27.90
Sku:
CM-10143
Availability:
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The 7SEMI MAX-M10S GNSS Board is a breakout module built around the u-blox MAX-M10S professional-grade L1 GNSS receiver. Designed for easy prototyping and integration, it features a robust SMA connector for external antennas, Qwiic/I²C compatibility, level-shifted UART pins, and a compact PCB layout.

This board is ideal for developers building IoT trackers, drones, timing solutions, robotics, and embedded systems where low power and high accuracy are critical. With typical 1.5 m CEP accuracy, 25 mW tracking power, and support for GPS, Galileo, GLONASS, and BeiDou, the board delivers industrial performance in a maker-friendly form.

Technical Specifications

GNSS Performance

  • Constellations: GPS L1C/A, Galileo E1-B/C, GLONASS L1OF, BeiDou B1I/B1C.

  • Default mode: GPS + Galileo + BeiDou B1I (+QZSS, SBAS).

  • Accuracy: ~1.5 m CEP (50%).

  • Sensitivity: –167 dBm tracking.

  • TTFF: Cold start ~28 s, hot start ~1 s.

  • Update rate: up to 20 Hz (profile-dependent).

Board Interfaces

  • UART: TX/RX pins (default baud 9600; up to 921600).

  • I²C/Qwiic: 3.3 V logic, 7-bit address 0x42, up to 320 kHz.

  • Reset & timepulse pins available on breakout headers.

Power

  • Supply: 3.3V (onboard regulator).

  • Current: ~9.5 mA @ 3 V (tracking).

  • Backup supply (VBAT): SMD coin cell 

Mechanical

  • Dimensions: ~44.02mm x 26.10 mm PCB.

  • Mounting holes: 4 × corner M3.

  • Antenna connector: SMA female and UFL connector.

Applications

  • IoT asset tracking

  • Robotics and drones

  • Vehicle/asset logging

  • Wearables and handhelds

  • Timing and synchronization (1 PPS)

What’s Included

  • 1 x 7SEMI MAX-M10S GNSS Board (assembled and tested)

Note: External antenna not included (requires SMA GNSS antenna, 3.3 V Power Supply).

 

FAQ

Q1. Do I need an external antenna?
Yes, for best performance use an active L1 GNSS antenna via the SMA connector.

Q2. Can I connect this to Arduino or ESP32?
Yes—use either the UART pins or the Qwiic/I²C connector. Libraries exist for UBX/NMEA parsing.

Q3. What is the default baud rate?
The UART interface defaults to 9600 baud (8-N-1).

Q4. Does it support SBAS?
Yes—EGNOS, WAAS, MSAS, GAGAN, and BDSBAS are supported.

Resources

 

GNSS Constellations:
GPS, Galileo, GLONASS, BeiDou (B1I/B1C; default GPS+Galileo+BeiDou B1I with QZSS & SBAS)
Position Accuracy (CEP, 50%):
~1.5 m (multi-GNSS)
Sensitivity (Tracking):
–167 dBm (typ.)
Max Update Rate:
Up to 20 Hz (high-performance profile; constellation-dependent)
Protocols:
UBX (binary), NMEA 2.1/2.3/4.0/4.10/4.11 (default)
Board Power:
3.3–5 V input (onboard regulator)
Connectors:
Qwiic/I²C header, UART pins, 4× mounting holes (M3)

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