General Description
HCM380B/HCM385B-MP is a cost-effective 3D electronic compass. It adopts 24-point calibration method, which has stronger anti-interference and easy operation, and uses high-precision accelerometer for tilt compensation, so that it can provide high-precision heading information at any tool surface at roll within ±180 °For fixed interference, it can still provide high-precision measurement data, RS232, RS485, TTL multiple communication interface methods are optional.
The product integrates a three-axis magnetometer and a three-axis accelerometer, with high resolution and strong anti-noise capability. It is a high-performance, high-stability product with small size and low power consumption; It is widely used in many fields such as handheld devices, mobile devices, antenna stabilization, vehicles, and system integration. The product can be ordered with a sealed package or a circuit board.
Electrical Characteristics
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HCM385B Parameters
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Compass heading
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Best heading accuracy
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0.5° tilt <10°
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2.0° tilt＜60°
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3.0° tilt＜80°
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Resolution
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0.1°
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Compass tilt angle
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Pitch accuracy
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0.1°<15°（Measure range）
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0.1°<30°（Measure range）
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0.1°<60°（Measure range）
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0.2°<90°（Measure range）
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Pitch measure range
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±85°
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Roll accuracy
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0.1°<15°（Measure range）
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0.1°<30°（Measure range）
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0.1°<60°（Measure range）
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0.2°<180°（Measure range）
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Roll measure range
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±180°
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Resolution
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0.1°
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Calibration
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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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Soft Magnetic field interference calibrationmethod
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Horizontal rotation 360 °;
vertical rotation (optional)
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physical characteristics
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Dimension
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L57×W49×H25.5mm
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Weight
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≤130g(without cable)
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RS232/RS485/TTL interface
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Direct leading cable
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Interface characteristics
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Start delay
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<50ms
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Max output
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20Hz/s
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Communication rate
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2400 ~115200baud
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Output format
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Binary high performance protocol
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Power supply
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Power voltage
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（default）DC+5V
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Current (max)
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30mA
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Idea mode
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26mA
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Sleep mode
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TBD
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Environment
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Working temperature
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-40℃～+85℃
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Storage temperature
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-40℃～+85℃
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Anti vibration performance
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100g
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Protective performance
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IP67
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Electromagnetic compatibility
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According to EN61000 and GBT17626
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MTBF
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≥40000 hours/time
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Insulation resistance
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≥100 Mega ohm
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Impact resistance
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100g@11ms、3 Axial Direction (Half Sinusoid)
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Anti vibration
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10grms、10～1000Hz
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Dimension
Specification Download
