Hall Effect Filament Sensor

Remixed a model of a E3D Titan extruder to build a Hall effect Filament Sensor. Two spherical magnets pressed into the filament guide wheel are detected by the 49E hall effect sensor. I used an arduino and a small OLED display to count pulses.

Hall effect sensor can be found here:

https://www.aliexpress.com/item/10pcs-49E-Hall-element-OH49E-SS49E-Hall-sensor-Hall-Effect-Sensor-new-Free-shipping/32655757933.html?spm=a2g0s.9042311.0.0.27424c4d4oPiO6

The magnets are 2mm sphere magnets.

https://www.aliexpress.com/item/High-Quality-GCR15-Solid-ball-High-precision-G10-1-2-3-4-5-mm-100Pcs-hardness/33000818866.html?spm=2114.search0104.3.2.530054e8vYoAZq&ws_ab_test=searchweb0_0,searchweb201602_3_10065_10068_10130_10547_319_10059_10884_317_10548_10887_10696_321_322_10084_453_10083_454_10103_10618_10307_537_536,searchweb201603_54,ppcSwitch_0&algo_expid=b389b559-606a-4578-a100-87cadcc104f0-0&algo_pvid=b389b559-606a-4578-a100-87cadcc104f0&transAbTest=ae803_3

I only used 2 magnets i