I am using the AEDR-8300 as a simple optical encoder solution. The part seems simple enough:
- An LED emitter
- Photodiodes that pick up the light that is reflected from a codewheel or black/white strip
The current part I have is the AEDR-8300-P, which has a minimum and maximum LPI of 150. I can understand why there is a maximum LPI but why is there a minimum LPI?
PS: I am not getting any output on either output channel on my test circuit and I am trying to understand if I need an improved black/white strip or if my circuit is not right. I've also tried using pull ups/pull downs but there was no difference.