Introduction: Alarm

This project is I make an example from Flynn_munroe.


It’s idea is from the author, not my own.

Step 1: How to Do It

This is the picture that how you connect the circuit.

Step 2: My Own Example

here is my own example

This is the code that my work have.

I think when you are sleeping, the alarm will ring when someone comes in, then you may wake up and notice that someone comes in.