AS5600 -12-Bit High Precision Angle Sensor Module - 0-360° Coverage

Handy Tips

Magnet alignment is critical — The AS5600 needs a diametrically magnetized magnet (not axially magnetized) centered directly above the die, spinning with the shaft. Off-center mounting or the wrong magnet type is the most common cause of noisy or inaccurate readings, so double-check magnet type and centering before troubleshooting code.

I2C is the most reliable output — While PWM and analog outputs are available, reading the angle over I2C (register-based, 12-bit raw value) avoids the added noise and lower resolution of PWM duty-cycle timing or ADC sampling, and gives you the full 4096-step precision directly.

Air gap matters more than you'd think — Keep the magnet-to-sensor gap within the recommended 0.5–3mm range. Too close saturates the sensor and distorts readings; too far weakens the signal and increases noise. Test at your actual final mounting gap, not just on the bench.

Watch for magnetic field interference — Nearby motors, solenoids, or ferrous metal near the sensor can distort the field the AS5600 reads. Keep other magnetic sources away from the sensor axis, especially if it's mounted near a motor it's meant to be measuring.

Zero position isn't fixed at power-on — The AS5600 doesn't inherently know "0°" unless you program a start angle or track an offset in software. Establish a reference/homing routine in your code (e.g. capture a known reference angle at startup) rather than assuming raw output always maps to a real-world zero point.

Handles continuous rotation, not just a fixed arc — Unlike a potentiometer, the AS5600 can track a full 360° continuously with no dead zone, making it well suited to things like continuously rotating knobs or motor shaft feedback — but your code needs to handle the wraparound from 4095 back to 0 correctly if you're accumulating multi-turn position.