Video Demo and Application - YollyLau/ECE387-Individual-Final GitHub Wiki

My demo link is here Anti-Theft Alarm Device. In my video, you can see that before I turning on the device by the controller, nothing happened. Once I turned on the device, the buzzer started to make a sound. That's because the bag was opened and the photo-resistor felt the light intensity. Once I closed the bag, the photo-resistor failed to catch light and then the buzzer just stopped. Finally, I opened the bag again, and the alarm was raised again.

This is a rough but very useful design that can be applied to bag safety, especially for those who usually carry backpacks in their daily life. Since you cannot always turn around to check if your bag is safe or not, this device will help you to prevent you from any theft as long as you turn on the device.