I need to notify my arduino when I open the lid of a box, wondering what is the best way to go about this? I was thinking maybe some type of magnet setup but it would probably be much simpler to just have a button on the box that the lid presses on when it is closed. Any suggestions on the type of …

Best way to tell if a lid is open.

michinyon August 28, 2012, 3:23pm 11

Mercury switches are probably illegal now.

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