Measure invisible magnetic fields with the Adafruit Wide-Range Triple-axis Magnetometer, featuring the MLX90393 sensor. With 16-bit resolution across all three axes and a dynamic range of ±5 mT to ±50 mT, this sensor is ideal for detecting magnets and magnetic orientation rather than the Earth's weak field.

Mounted on an Adafruit breakout board with a 3.3V regulator and level shifter, it works seamlessly with any 3V or 5V microcontroller over I2C. Address select pins allow up to 4 sensors on a single I2C bus.

Key Features

• 16-Bit Triple-Axis Measurement – High-resolution magnetic field readings on X, Y, and Z axes
• Wide Dynamic Range – 5–50 mT (50–500 Gauss), far exceeding typical magnetometers like the LSM303DLHC which saturates at ±8.1 Gauss
• Fast Sample Rate – Up to ~500 Hz depending on configuration settings
• Configurable I2C Address – Two address select pins for up to 4 sensors on one bus
• 3V or 5V Compatible – Onboard regulator and level shifter for broad microcontroller support
• Arduino & CircuitPython Support – Libraries available for quick setup over I2C

Ideal For

• Magnet detection and proximity sensing
• Magnetic orientation and position tracking
• Robotics and automation projects
• Multi-sensor arrays with up to 4 units on one bus

Package Contents

• 1× Adafruit MLX90393 Wide-Range Triple-axis Magnetometer breakout board (fully assembled and tested)
• 1× Header strip for breadboard use

Resources

• Adafruit MLX90393 Learn Guide
• Arduino Library (GitHub)
• CircuitPython Library (GitHub)