CUAV NEO 4 Nano — Mini GNSS Module

The CUAV NEO 4 Nano is an ultra-compact GNSS positioning module designed for UAVs, robotics, and autonomous unmanned systems.

Powered by the u-blox MIA-M10Q GNSS receiver, the NEO 4 Nano supports simultaneous reception from four major satellite navigation systems, providing reliable positioning performance in a lightweight and highly integrated design.

Featuring an STM32H5 processor, integrated ST IIS2MDC electronic compass, DroneCAN communication, and advanced interference filtering, the NEO 4 Nano delivers professional navigation capabilities in a module weighing just 10.6 g.

Key Features

Ultra-Compact & Lightweight Design

With dimensions of only 34 × 20 × 14.5 mm and a weight of 10.6 g, the NEO 4 Nano is ideal for UAV platforms where space and weight are critical.

u-blox M10 GNSS Receiver

Equipped with the u-blox MIA-M10Q receiver for reliable satellite navigation and positioning.

Four-Constellation GNSS Positioning

Supports simultaneous reception from GPS, GLONASS, Galileo, and BeiDou, improving satellite availability and positioning reliability.

High-Performance STM32H5 Processor

Features a 250 MHz Arm Cortex-M33 processor running CUAV’s M4C GNSS firmware architecture.

Integrated Electronic Compass

The ST IIS2MDC magnetometer provides magnetic heading information with a measurement range of up to ±50 G.

DroneCAN Communication

Uses the DroneCAN protocol for integration with compatible flight controllers and autonomous systems.

Advanced Anti-Interference Design

Dual SAW and LNA filtering stages help improve GNSS signal reception and reduce interference.

RGB Status Indicator

Integrated multicolor status lighting provides visual information about module operation.

Firmware Upgrade Support

Supports firmware updates through CUAV’s M4C architecture.

Multi-Constellation GNSS Navigation

The NEO 4 Nano supports simultaneous reception from four major satellite navigation systems:

• GPS: L1 C/A
• GLONASS: L1OF
• BeiDou: B1I / B1C
• Galileo: E1B/C

By combining signals from multiple constellations, the module improves satellite availability and supports more consistent positioning in challenging environments.

It also supports satellite-based augmentation systems, including EGNOS, WAAS, MSAS, GAGAN, BDSBAS, KASS, and SouthPAN.

High-Performance GNSS Processing

The NEO 4 Nano incorporates an STM32H5 Arm Cortex-M33 processor operating at 250 MHz.

Combined with CUAV’s M4C GNSS architecture, this processing platform supports navigation data management, sensor integration, and firmware updates.

The module provides positioning updates at:

10 Hz — Four Concurrent GNSS Constellations

25 Hz — Single GNSS Constellation

Integrated Electronic Compass

The integrated ST IIS2MDC magnetometer provides magnetic field measurements for compatible flight control systems.

Its ±50 G measurement range and temperature compensation help maintain reliable magnetic measurements across different operating conditions.

Advanced Interference Protection

The NEO 4 Nano uses an advanced GNSS signal-conditioning architecture featuring:

SAW + LNA + SAW + LNA Filtering

This combination improves signal amplification and filtering to help reduce unwanted radio-frequency interference.

The module also supports RF interference, jamming, and spoofing detection and reporting.

DroneCAN Integration

The NEO 4 Nano communicates through the DroneCAN protocol, enabling integration with compatible UAV flight controllers.

It is suitable for supported ArduPilot and PX4 configurations using DroneCAN GNSS devices.

The compact design makes it particularly suitable for:

FPV & Compact UAVs

Industrial Multirotors

Fixed-Wing Aircraft

VTOL Platforms

Autonomous Ground Vehicles

Robotics & Unmanned Systems

Technical Specifications

Product: CUAV NEO 4 Nano

Brand: CUAV

Product Type: Mini GNSS Positioning Module

GNSS Receiver: u-blox MIA-M10Q

Processor: STM32H5 Arm Cortex-M33

Processor Frequency: 250 MHz

Electronic Compass: ST IIS2MDC

GNSS Constellations: GPS / GLONASS / Galileo / BeiDou

Concurrent GNSS Constellations: 4

GPS Frequency: L1 C/A

GLONASS Frequency: L1OF

BeiDou Frequencies: B1I / B1C

Galileo Frequency: E1B/C

Augmentation Systems: EGNOS / GAGAN / MSAS / WAAS / BDSBAS / KASS / SouthPAN

QZSS Support: L1S (SLAS)

Horizontal Positioning Accuracy: 1.5 m CEP

Navigation Update Rate: Up to 10 Hz with Four GNSS Constellations / 25 Hz with Single GNSS

Cold Start: 27 s

Hot Start: 1 s

Aided Start: 1 s

Oscillator: TCXO

Signal Filtering: SAW + LNA + SAW + LNA

Interference Protection: EMI / RFI Filtering

Signal Integrity Monitoring: RF Interference, Jamming & Spoofing Detection and Reporting

Communication Protocol: DroneCAN

Data Connector: GHR-04V-S

Firmware: CUAV M4C GNSS

Firmware Upgrade: Supported

Status Indicator: RGB LED

Input Voltage: 4.5–5.4 V DC

Operating Temperature: -10°C to +80°C

Dimensions: 34 × 20 × 14.5 mm

Weight: 10.6 g

Compatible Platforms: DroneCAN-Compatible UAV Flight Controllers / ArduPilot / PX4

What’s Included

1× CUAV NEO 4 Nano GNSS Module

Connection cables and mounting accessories depend on the selected package configuration.

Flight controller, battery, power distribution equipment, and other UAV accessories are not included unless explicitly specified.

The NEO 4 Nano provides standard GNSS positioning and is not an RTK centimeter-level positioning module.

Verify DroneCAN compatibility and the electrical interface before installation.