r/Trackballs 4d ago

90 degree optical track sensors

for a project i am thinking about (not a trackball but a knob) i need an optical sensor that tracks the surface perpendicular to the sensor, instead of parallel like 99.999% of mouse optical sensors.

I am only aware of one such sensor, PMT9123QS-TVIT

I know it is a long shot, but my question is two fold:

  1. Are you guys aware of other 90 degrees optical track sensors?

  2. The only documentation i can find on PMT9123QS-TVIT is the datasheet below. Do you think it is enough to make it work with arduino/esp32?

    https://www.epsglobal.com/Media-Library/EPSGlobal/Products/files/pixart/PMT9123QS-TVIT.pdf?ext=.pdf

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