For my hardware project I decided to make a device that solves a personal problem for me. My problem is that my housemates like to eat my food so I decided to make a refrigerator that has a security system on it. The hardware that I used was an arduino, breadboard, keypad, led lights, and a buzzer. I programmed the arduino to take an input from the keypad. If you put in the wrong password, the red led light will stay on and there will be a longer beep. If you put in the right password, the yellow led light will turn on and there will be a short beep. Originally I had the lcd screen connected to the arduino but then it stopped working. For the refrigerator I used a cereal box.