Product overview
The CUAV NEO 4 Nano is a compact navigation peripheral for unmanned systems. Its 34 × 20 × 14.5 mm body weighs 10.6 g, making it suitable for integration where installation space and component mass are constrained. The module combines a u-blox MIA-M10Q satellite receiver, an STM32H5 processor with a 250 MHz Arm Cortex-M33 core, and an ST IIS2MDC electronic compass. Its receiving architecture incorporates a TCXO, dual-channel low-noise amplification and SAW filtering.
Navigation supports concurrent reception from BDS, Galileo, GLONASS and GPS, with SBAS augmentation and QZSS L1S support. The update-rate limit depends on receiver configuration: up to 10 Hz with four concurrent GNSS systems, or up to 25 Hz with a single GNSS system. Horizontal position accuracy is 1.5 m CEP. Acquisition times are 27 seconds for a cold start and 1 second for either a hot or aided start. The compass detects magnetic fields up to ±50 Gs and includes temperature offset compensation.
Integration uses DroneCAN through a GHR-04V-S data interface, with support for ArduPilot and PX4. CUAV M4C GNSS firmware supports upgrades and customized development. The hardware includes an eight-channel RGB status light group, a passive buzzer and a physical safety button; indications cover controller unlock, battery, positioning and fault status. Procurement concerns the GNSS module as an integrated navigation component. Electrical and environmental integration must accommodate its 4.5–5.4 V input range and operating temperatures from -10 to +80 °C.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity and purpose | CUAV NEO 4 Nano GNSS Module; micro satellite navigation receiver module |
| Receiver type | U‑blox MIA‑M10Q |
| Processor | STM32H5 Arm® Cortex®‑M33, 250 MHz |
| Electronic compass | ST IIS2MDC |
| Concurrent GNSS | 4: BDS, Galileo, GLONASS and GPS |
| Frequency bands |
|
| Augmentation systems | SBAS: EGNOS, GAGAN, MSAS, WAAS, BDSBAS, KASS and SouthPAN; QZSS: L1S (SLAS) |
| Oscillator | TCXO |
| Acquisition time |
|
| Navigation update rate | Up to 10 Hz with 4 concurrent GNSS; up to 25 Hz with single GNSS4 concurrent GNSS: up to 10 Hz; single GNSS: up to 25 Hz. |
| Horizontal position accuracy | 1.5 m CEP |
| Wave filtering | SAW+LNA+SAW+LNA |
| Electromagnetic and radio-frequency interference protection | EMI+RFI |
| Communication protocol | DroneCAN |
| Firmware upgrades | Supported |
| Firmware | CUAV M4C GNSS |
| Data interface | GHR‑04V‑S |
| Module dimensions | 34 × 20 × 14.5 mm |
| Module weight | 10.6 g |
| Input voltage | 4.5 ~ 5.4 V |
| Operating temperature | -10 ~ +80 °C |
| RGB driver | MCU direct drive |
| Buzzer | Passive buzzer |
| Safety switch | Physical button |
| Magnetic-field detection | Dynamic detection range up to ±50 Gs; temperature offset compensation |
| Status indication | 8-channel bus-controlled RGB light group and built-in buzzer |
| Autopilot integration | DroneCAN integration with ArduPilot and PX4 |
| Signal integrity | RF interference and jamming detection and reporting |
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