Pinball insert (roll over switch)

A pinball insert (table roll over switch) Using cheap SS49E hall effect sensors and neodymium magnets.

Video about it here: https://youtu.be/tZuv5gnS2lc

All parts printed in PLA.
The clear lens in PLA transparent.
For testing i printed a large apron around the sensor so i could roll the ball across the sensor.
I the final design i would only print the lens to fit within the sensor case.
The single LED will probably be replaced with 3xAPA102 LED's...more info on the why later :)

It's not the easiest way to make a switch but it won't alter the balls trajectory and it's completely
reliable.

I may or may not include this in the final design.

Parts used...
3x SS49E Hall effect sensor
6x Neodymium magnet N35 5mmx2mm

I connected the 3 hall effect sensors in parallel so that any increase in voltage from either of the 3 sensors would trigger a ball present. In the video i am using a arduino (Wemos D1) but in the final design it will be a simple resistor and transistor pair that will provide a signal much like any switch would.

I have provided a quick schematic of what i would have built to use this as a simple switch.
I never got around to finishing this off but i would have taken a voltage measurement from the hall sensor at minimum sustainable levels and provided a resistor to enable the transistor to switch reliably. it's pretty much a guess but it's what i would have done.
There's really no need for the resistor in a single sensor configuration but for multiple hall sensor's it would be used as a current limiter to protect the hall sensor's output stage.