The GCM380/GCM385-N is a 3D electronic compass that balances high performance with cost-effectiveness. It utilizes our proprietary, patented calibration technology, ensuring a streamlined and efficient setup process. Equipped with a built-in high-precision accelerometer for tilt compensation, the device delivers stable and reliable heading data across a full 360°roll range (±180°). It maintains exceptional measurement accuracy even in the presence of fixed magnetic interference and supports multiple serial communication interfaces—including RS232, RS485, and TTL—facilitating seamless integration into diverse systems.

The unit integrates a 3-axis magnetometer and a 3-axis accelerometer, offering high resolution and robust resistance to environmental noise. It combines stable, reliable performance with a compact form factor and low power consumption, making it ideal for handheld devices, mobile platforms, antenna orientation systems, automotive equipment, and various system integration projects. Customers can choose between a fully enclosed finished product or a standalone circuit board module, allowing for flexible adaptation to specific application requirements.

Technical Characteristics

❖ Measurement range: Roll ±180°, Pitch ±85°;

❖ Accuracy: Roll/Pitch 0.1°, Heading 0.5°;

❖ Resolution: 0.1°;

❖ Standard RS232/RS485/TTL output interfaces;

❖ Includes hard-iron, soft-iron, and tilt compensation.

Application Field

❖ Marine Navigation & Surveying/Mapping ❖ GPS Integrated Navigation Systems

❖ Laser Ranging Equipment Coordination ❖ ROV Underwater Robot Navigation

❖ Map Updating/Supplementing System Support ❖ Unmanned Intelligent Systems

❖ ROV Underwater Robot Navigation ❖ Marine Surveying Instrument Support

❖ Antenna Servo Control ❖ Infrared Imager Integration

Specifications

PIN Definition

Product Dimensions

PCBA Dimension Diagram

PCBA dimensions: L33 × W27 × H9.5 mm

Mounting dimensions: L28.5 × W22.6 × H2 mm

Recommended screws: 4 × M3 screws(copper screws)

Housing Dimension Diagram

Housing dimensions: L61.3 × W49 × H25.5 mm

Mounting dimensions: L45 × W39 × H5 mm

Recommended screws: 4 × M4 screws(copper screws)