The MLX90393 is a tri-axial magnetic field sensor with an exceptionally wide dynamic range — capable of sensing fields as small as the Earth's magnetic field while behaving predictably in the presence of strong nearby magnets. This makes it superior to many compass-only sensors that exhibit undefined behaviour in large fields.

This Qwiic-enabled breakout features dual Qwiic connectors for solder-free I²C daisy-chaining, with a selectable SPI interface and up to four user-configurable I²C addresses. Beyond compass applications, the MLX90393 excels as a non-contact joystick controller, flow meter sensor (with magnetic impeller), or linear actuator position sensor.

Key Features

• Tri-Axial Magnetic Sensing – Measures X, Y, and Z magnetic fields
• Wide Dynamic Range – 0.161 μT resolution up to 44,000 μT full scale
• Dual Qwiic Connectors – Solder-free I²C connection with daisy-chain support
• I²C or SPI – Selectable interface via jumper
• Multi-Sensor Support – Up to 4 sensors on the same I²C bus
• 3.3V Operation – Low-power magnetic sensing

Ideal For

• Digital compass and heading applications
• Non-contact joystick and position sensing
• Flow meters with magnetic impellers
• Linear actuator position feedback
• Magnetic field measurement and mapping

Package Contents

• 1× Qwiic MLX90393 Magnetometer Breakout Board

Resources

• MLX90393 Datasheet (PDF)
• Schematic (PDF)
• Arduino Library (GitHub)
• Example Sketches
• Design Files (GitHub)