I am a student and intending to build something to prevent moving of chairs from one classroom to another classroom and I thought this would be an ideal project for my class. I am not electrical engineer. I am intending to create something with Arduino microprocessor & having sensors attach to each chair so that anytime any chair moved from one room to another, then Arudino on sensor should sound to prevent moving of chairs to another classrooms. Each classroom at my school have different colors. At this point, I am not really sure what I would need to complete my project. Any thought or any suggestions will be appreciated. Thanks!