C-Compass CAN Electronic Compass
- High-performance, industrial-grade interference resistance.
- Proprietary M4C software architecture.
- Supports CAN protocol.
- Compatible with ArduPilot and PX4 platforms.




Industrial Grade Anti-interference Capability
Built-in STM32F4 processor and high-resolution car-grade RM3100 sensor, low noise and strong anti-interference ability allow the aircraft to maintain stable performance.
Advanced Magnetic Filtering Algorithm
Used as an external sensor, it can effectively eliminate the influence of interference sources within the system (such as cables, batteries, motors, etc.) and can accurately measure the heading of the device.
Self-Developed M4C Software Architecture
It adopts CUAV’s self-developed M4C software architecture, which has greater flexibility and can quickly implement customized development.
DroneCAN Protocol Compatible with ArduPilot/PX4 Platform
Built-in STM32F4 processor, running M4C self-developed platform firmware, with faster response speed and better communicationstability.Adopting the DroneCAN bus protocol, it can be widely used in unmanned systems such as ArduPilot or PX4.
Specification & Parameters
| C-Compass Parameters | |
| MCU | STM32F4 |
| Protocol | DroneCAN |
| Sensor | RM3100 |
| Software Architecture | CUAV M4C |
| Communication rate | 2Mb |
| Refresh rate | 80Hz |
| Noise | 15nT |
| Accuracy | 0.25° (effective value) |
| Repetition accuracy | 0.05° |
| Resolution | 0.01° |
| Sensitivity | 13nT |
| Range | -800 μT to +800 μT |
| Controller type | PX4/ArduPilot (CUAV/Pixhawk e.g.) |
| Interface | GHR-04V-S |
| Operating Voltage | 4.75 ~ 5.3V |
| Operating temperature | -20 ~ +80℃ |
| Operating humidity | 5% ~ 95% (non-condensing) |
| Casing material | Aluminum alloy |
| Weight | 13g |
Dimensions chart
C-Compass Videos
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.