I'm trying to find a way to translate small angle rotation into some form of digital signal. 1 degree resolution would be excellent, but something like 5 degrees would be ok.
I need something like a rotary encoder, but with much higher resolution, similar to what we see inside old rubber ball mouses, which have an encoding disk and IR leds/sensors to detect when the disk spins.
Is there any commercial component that would do that? Or I will need to build it myself?
Thanks in advance!