presence sensing lights controller bidirectional counter

[Guest]

I'm designing and constructing this project for my final year' project. My request is that, I need more information or History about the presence sensing light controller with counter. What scholars have said and written about this topic. Its operations, advantages and disadvantages on humans.

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I'm designing and constructing this project for my final year' project. My request is that, I need more information or History about the presence sensing light controller with counter. What scholars have said and written about this topic. Its operations, advantages and disadvantages on humans.