Sebastian would like to build a high-res 3D printer, and to this end he needs a precise way to ascertain the exact positions of various moving parts. Instead of buying an expensive stepper motors he decided to build a magnetic rotary sensor with which he could calculate the distance traveled. By placing a neodymium magnet on the sniping shaft above the AS5043 IC, he should be able to have a rotary encoder with 0.35° steps.
The setup for this sensor is rather simple, you need a few external components and a neodym magnet that is attached to your motors axis. Then you place the sensor under it.
Via the forum.