NEO 4 GNSS Module
- u-blox M10 Satellite Receiver System
- Self-Developed High-Flexibility M4C Architecture Software
- IP67 Dustproof & Waterproof Design
- ST IIS2MDC E-Compass
- SAW + LNA Dual‑Filter Design
- DroneCAN Protocol







IP67 Dustproof & Waterproof | Dual installation methods
NEO 4 is entirely designed with a two‑shot over‑molding integrated design, featuring IP67 dustproof and waterproof performance. It can effectively resist rain spray and dust intrusion, protecting the internal precision positioning components. During outdoor operations, there is no need to worry about water or dust getting into the device, allowing it to handle complex outdoor environments such as sand and rain with ease. NEO 4 supports two installation methods: direct attachment and injection molding bracket fixation. The dual installation options suit different device structures, making installation easy and flexible, and both methods can achieve IP67 protection.
u-blox M10 System | Four‑Satellite System Concurrent Reception
Equipped with the u-blox M10 tenth-generation satellite receiving system, it supports concurrent reception of signals from the four satellite navigation systems: Beidou, Galileo, GLONASS, and GPS/QZSS. It intelligently selects and filters out the available satellite signals, significantly increasing the number of satellite captures. Even in complex environments like city canyons or areas blocked by buildings, it still delivers stable and reliable positioning results, effectively reducing the risk of losing satellites or drifting in location.
High Anti-Interference Compass | Wide Dynamic Magnetic Field Detection
NEO 4 features a built-in ST IIS2MDC compass, with a magnetic field dynamic detection range of up to ±50 Gs and temperature offset compensation. The casing features an integrated snap-fit, non-magnetic, and screw-free design, which significantly reduces the impact of metal on the electronic compass.
STM32H5 Processor | Self-Developed M4C Architecture
Equipped with a high-performance STM32H5 processor, coupled with the Arm® Cortex®-M33 core, the operating frequency can reach up to 250 MHz, providing ample computing power for the system. Combined with CUAV’s self-developed, highly flexible M4C architecture software, it makes customized development and system upgrades more efficient.
SAW + LNA Dual‑Filter Design | Stable and Superior Signal
NEO 4 integrates TCXO and dual-channel LNA architecture, combined with RF filtering technology to build a high-performance active receiving antenna, which provides excellent receiving sensitivity and acquisition time, effectively improves signal quality, and ensures accurate and reliable positioning performance.
RGB Full-Color Status Indicator Light | Controller Unlock Switch
Equipped with an 8-channel bus-controlled RGB light group, NEO 4 integrates a built-in buzzer to deliver multi-level status-indication effects. Through intelligent scene recognition, it intuitively displays operational information such as the controller’s unlock status, battery level, positioning status, and device faults. The device status is clearly visible at a glance.
Supports DroneCAN Communication Protocol | Compatible with Mainstream Open-Source Platforms
Adopting the DroneCAN protocol, NEO 4 is fully compatible with mainstream open-source platforms such as ArduPilot and PX4, and it can seamlessly connect to various unmanned system devices, expanding a wide range of application scenarios.
Specification & Parameters
| Basic Parameters | |
| Receiver Type | u-blox MIA-M10Q |
| Processor | STM32H5 Arm® Cortex®-M33 250 MHz |
| Electronic Compass | IIS2MDC |
| Frequency Band | GP: L1 C/A GLONASS: L1OF Beidou: B1I/B1C Galileo: E1B/C |
| Augmentation Systems | SBAS: EGNOS, GAGAN, MSAS, WAAS, BDSBAS, KASS, and SouthPAN QZSS: L1S (SLAS) |
| Number of Concurrent GNSS | 4(Beidou、Galileo、GLONASS、GPS) |
| Oscillator | TCXO |
| Acquisition | Cold Start 27s Hot Start 1s Aided Start 1s |
| Nav. Update Rate | Up to 10 Hz (4 Concurrent GNSS) Up to 25 Hz (Single GNSS) |
| Horizontal Position Accuracy | 1.5 m CEP |
| Wave Filtering | SAW+LNA |
| Anti Electromagnetic/ Radio Frequency Interference | EMI+RFI |
| Protocol | DroneCAN |
| Upgrade Firmware | Support |
| Firmware | CUAV M4C GNSS |
| Protection Level | IP67 (Install on Demand) |
| Port Type | |
| Data Interface | GHR-04V-S |
| Hardware Parameters | |
| Size | 64 x 64 x 16.95 mm |
| Weight | 36.5 g |
| Input Voltage | 4.7 ~ 5.2V |
| Operating Temperature | -10~+80℃ |
NEO 4 Dimensions chart
NEO 4 Pinouts
ArduPilot, Dronecode, and PX4 Long-Term Partners
CUAV Tech Inc., Ltd. is a National High-Tech Enterprise and Guangdong Provincial Specialized, Sophisticated, Innovative SME that focuses on open-source unmanned system innovation technologies. It integrates R&D, production, sales, after-sales service, and technical support into a cohesive operation. The company maintains long-term collaborative partnerships with leading open-source organizations such as ArduPilot, Dronecode, and PX4.