Unconventional Switch - Door

 

    For my unconventional switch, I wanted to solve the problem of not knowing whether or not your door is completely closed.  At my apartment me and my roommate's doors will sometimes not close all the way, so even if the door is locked the door can still be pushed open.  This is where this switch could come into play.  The LED in this circuit will turn on when the bolt of the door is fully seated inside of the faceplate of the doorframe where a magnet connected to a wire will latch onto it finishing the circuit, thus letting you know the door is secure and can not be opened if it is locked.  The circuit uses a 3.3V power supply that powers the 2V red LED, I used a 100 ohm resistor which is slightly higher than the ideal 65 ohms of resistance that this circuit could handle, to make sure that the LED will not break.