Upper Computer Software(Video):
The GCM387 is a high-performance, cost-effective 3D electronic compass. It employs innovative 24-point rotating acquisition and calibration technology, effectively enhancing anti-interference capabilities while simplifying operation. An integrated high-precision accelerometer supports full-range (±180°) tilt compensation, ensuring accurate heading data even under complex attitude conditions. It maintains stable measurement accuracy in environments with fixed magnetic field interference and supports flexible configuration via RS232/TTL dual-mode communication interfaces.
This product integrates a triaxial magnetometer and a triaxial accelerometer, featuring excellent resolution and strong noise suppression capabilities. It achieves low power consumption and high stability in a compact design. Suitable for handheld devices, mobile terminals, antenna stabilization, vehicle navigation, and system integration, it meets the diverse application needs for high-performance orientation measurement.
Technical Characteristics
❖ Azimuth accuracy: 0.5°;
❖ Roll angle measurement range: ±180°;
❖ Tilt resolution: 0.1°;
❖ Tilt accuracy: <0.2° (full range);
❖ Standard RS232/TTL output interface optional;
❖ With hard magnet, soft magnet and tilt compensation.
Application Field
❖ Marine navigation and surveying ❖ GPS integrated navigation system
❖ Antenna servo control ❖ Infrared imager integration
❖ Laser ranging equipment collaboration ❖ Map completion system support
❖ ROV underwater robot navigation ❖ Marine survey instrument support
❖ Special robot applications
Performance Parameters
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GCM387
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Parameter Indicators
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Compass heading parameters
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Optimal heading accuracy
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0.5°
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Resolution
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0.1°
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Compass Tilt Parameters
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Pitch accuracy
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0.1°<15°(Measurement Range)
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0.1°<30°(Measurement Range)
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0.1°<60°(Measurement Range)
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0.2°<85°(Measurement Range)
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Pitch roll range
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±85°
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Roll accuracy
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0.1°<15°(Measurement Range)
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0.1°<30°(Measurement Range)
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0.1°<60°(Measurement Range)
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0.2°<180°(Measurement Range)
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Roll tilt range
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±180°
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Resolution
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0.1°
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Compass Tilt Parameters
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Hard iron calibration
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Yes
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Soft iron calibration
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Yes
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Magnetic field interference calibration method
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24-point rotation acquisition calibration
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Interface Characteristics
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Startup delay
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<50ms
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Maximum output rate
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20Hz/s
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Communication rate
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2400 to 115200 baud
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Output format
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Binary high-performance protocol
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Power Supply
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Supply voltage
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Binary high-performance protocol
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Current (typical)
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50mA
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Sleep mode
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TBD
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Electromagnetic Compatibility
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Compliant with EN61000 and GBT17626
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Mean Time Between Failures (MTBF)
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≥99000hours / time
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Insulation Resistance
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≥100 megohms
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Shock Resistance
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100g@11ms, triaxial (half-sine wave)
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Vibration Resistance
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10grms,10～1000Hz
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Product Dimensions
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33×27×9.5mm
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Weight
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<15g
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PIN Definition
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PIN/Thread Color
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Definition
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Description
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Black
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GND
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GND
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Red
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DC 5V
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VCC
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Yellow
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TTL/RS232_RXD
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Receive Data
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Green
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TTL/RS232_TXD
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Transmit Data
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Product Dimensions
PCBA Dimensions: L33×W27×H9.5mm
Installation Dimensions: L28.5×W22.6×H2mm
Recommended screws: 4M3 screws (copper screws)
Product Tags:
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GCM387 High Precision 3D Electronic Compass Sensor RS232 / TTL Output Images
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