GCM380/GCM385-N 3D Electronic Compass | High Precision Tilt Compensated Digital Compass

Home Products 3D Electronic Compass Sensor GCM380/GCM385-N

3D Electronic Compass

GCM380 / GCM385-N

3D Electronic Compass

Resolution: 0.1°
Accuracy: Roll/Pitch 0.1°, Heading 0.5°
Measurement range: Roll ±180°, Pitch ±85°
Standard RS232/RS485/TTL output interfaces
Includes hard-iron, soft-iron, and tilt compensation

Product manual

Product Introduction

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.

Performance Parameters

GCM380/GCM385-N		Parameter indicators
Compass Heading Parameters	Optimal heading accuracy	0.5°
	Resolution	0.1°
	Pitch accuracy	0.1°<60°(Measurement Range)
	Pitch accuracy	0.2°<85°(Measurement Range)
	Pitch tilt range	±85°
	Roll accuracy	0.1°<60°(Measurement Range)
	Roll accuracy	0.2°<180°(Measurement Range)
	Roll tilt range	±180°
	Resolution	0.1°
Calibration	Hard-iron calibration	Yes
	Soft-iron calibration	Yes
	Magnetic interference calibration method	360° horizontal rotation ; vertical rotation(optional)
Physical Characteristics	Housing dimensions	L57×W49×H25.5mm
	Housing weight	≤250g(excluding cable)
	RS232 / RS485 / TTL interface connector	Direct wireleads
Interface Characteristics	Startup delay	<50ms
	Maximum output rate	20Hz/s
	Communication rate	2400 to 115200 baud
	Output format	High-performance binary protocol
Power Supply	Supply voltage	(Default)DC+5V
	Current(maximum)	30mA
	Active mode	26mA
	Sleep mode	TBD
Environment	Operating temperature	-40℃~+85℃
	Storage temperature	-40℃~+85℃
	Vibration resistance	100g
Ingres Protection	IP67
Electro magnetic Compatibility	In accordance with EN 61000 and GB/T 17626
Insulation Resistance	≥100 megohms
Shock Resistance	100g@11ms,tri-axial(half-sinewave)
Vibration Resistance	10grms/10~1000Hz

Product Size