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Is it possible to create a series of circuits capable of detecting a moving object with 3 levels of proximity e.g. green light when object is 10ft. away, yellow light at 5ft., red light at approx. 1ft. away, etc? Thanks, Dave

*This is not homework, I'm a technical writer. I'm trying to understand how these terms are related and different. Here's what I have concluded so far: Wikipedia definition is that cocrystals “consist of two or more components that form a unique crystalline structure having unique...