This is a room security system that will require you to enter a combonation of button presses to stop the alarm from going off.

The combonation of button presses, or passcode, is Green - Red - Yellow - Green - Red - Blue - Yellow - Blue. Once opening the door you will have about 10 seconds to enter the passcode or the alarm will go off. 



(1) Half-sized Breadboard

(1) Arduino Uno R3

(1) Green LED

(1) Red LED

(1) Magnetic Contact Switch

(1) Piezo Element

(16) Male/Male Jumper Wires

(1) Green Tactile Button Switch

(1) Yellow Tactile Button Switch

(1) Red Tactile Button Switch

(1) Blue Tactile Button Switch

(7) 220 ohm 5% 1/4W Resistor

(1) 9 VDC 1000mA Regulated Switching Power Adapter