The Adafruit TLV493D is a 3-axis magnetometer designed for detecting and tracking nearby magnets in three dimensions. Manufactured by Infineon, this sensor measures magnetic fields across the X, Y, and Z axes with 12-bit resolution — ideal for applications like DIY joysticks, position sensing, or detecting the movement of magnet-equipped objects.

The breakout board includes an onboard voltage regulator and logic level shifting for compatibility with both 3.3V and 5V microcontrollers. STEMMA QT / Qwiic connectors on both sides allow solderless I2C connections and easy daisy-chaining with other sensors. Arduino and CircuitPython/Python libraries are available for quick setup.

Key Features

• 3-Axis Magnetic Field Sensing – Measures Bx, By, and Bz linear fields up to ±130 mT
• 12-Bit Resolution – High-precision digital output for each measurement axis
• I2C Interface – Standard 2-wire I2C up to 1 Mbit/sec, shareable with other I2C devices
• Accurate Angle Sensing – Excellent X/Y measurement matching for precise angular detection
• Onboard Voltage Regulation – 3.3V regulator and level shifting for 3V or 5V microcontrollers, with a spare 3.3V output pin
• STEMMA QT / Qwiic Compatible – Solderless connectors for plug-and-play setup and daisy-chaining

Ideal For

• DIY joysticks and 3D position controllers
• Detecting magnet-equipped objects (lids, latches, moving parts)
• Rotary angle and position sensing
• Proximity detection with magnets

Package Contents

• 1× Adafruit TLV493D Triple-Axis Magnetometer Breakout

Resources

• TLV493D 3D Magnetometer Demo (YouTube)