Description
The HMC5883L is a high-precision 3-axis digital magnetometer designed for accurate detection of the Earth’s magnetic field. This sensor module provides directional information, enabling compass functionality for robotics, navigation systems, and STEM laboratory experiments. Its compact form factor and I²C interface make it ideal for embedded and educational applications.
Key Features
3-Axis Magnetic Field Detection – Measures X, Y, and Z magnetic components
Digital Output via I²C Interface – Simplifies integration with microcontrollers
High Sensitivity – ±8 gauss full-scale range
Low Power Consumption – Ideal for battery-operated devices
Compact and Lightweight Module – Easy to incorporate into portable projects
Stable Performance Across Temperatures – -40°C to +85°C operational range
Technical Specifications
Operating Voltage: 3.3V – 5V DC
Measurement Range: ±1.3 to ±8.1 gauss (configurable)
Resolution: 5 milli-gauss typical
Data Output: 16-bit digital for each axis (X, Y, Z)
Interface: I²C (up to 400 kHz)
Operating Temperature: -40°C to +85°C
Current Consumption: 100 µA typical
Applications
Digital compasses for robotics and navigation
Orientation sensing in drones and UAVs
Wearable navigation devices
Magnetic field mapping and research experiments
STEM laboratory experiments on magnetism and navigation
The module is compatible with development platforms such as the Arduino Uno and Raspberry Pi, enabling real-time heading calculation and integration with sensor fusion systems.
Educational & Research Value
The HMC5883L sensor allows students and researchers to explore:
Earth's magnetic field detection
Compass heading calculation
Sensor interfacing via I²C
Robotics navigation algorithms
Data logging and visualization of magnetic fields
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