N-Jitters Doorbell

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  Inside the Doorbell

Our project draws inspiration from a Ring Doorbell, but with its own security system that takes a picture when someone who is unwanted is detected. Our doorbell has a hidden button that is supposed to be held instead of pressed; if someone simply presses it or if the distance sensor is triggered, it is detected as a break-in, sets an alarm off, plays an alarm, and takes a picture in order to identify the intruder. We built this system with a Raspberry Pi 3, a camera, a buzzer, LEDs, and a distance sensor, connected with a perfboard with solder and jumper wires, all encased in a 3D-printed casing that optimizes the weight and size. We faced a few challenges, mainly with the code; more specifically, we were struggling to turn on both the LEDs, buzzer, and camera at the same time. To fix this, we used a forever loop and an if statement to bypass the issue (if LED and buzzers are active, camera takes picture). Another issue that we encountered was the precision of the holes on the casing for the LEDs. To go around this, we carefully drilled holes so that the LEDs fit properly. Accomplishments we are proud of were our ability to make a lightweight and cheaper alternative to the ring camera, giving millions more Americans the ability to afford a home security system. We learned about the work and organization it takes to complete a project; we also learned more about the integrations between a Raspberry Pi and other hardware like a distance sensor. Next steps for the project could be integrating other security systems with it and sending an email to the person if the alarm is triggered. Because it is using a Raspberry Pi, the connection to Wi-Fi allows for more automation for a complete security setup. Some next steps could be creating an app that would have all the information recorded in a single place while also connecting the user with the other home security features they could add; monitors and sensors to see what is secure or not, like if a door is locked or not, or if a garage gate is open or closed. This is completely feasible in all our eyes if given more than a day. Right now, we truly believe that this design is superior as it is lightweight, small, practical, and unique.

Built With

• raspberrypi3
• solidworks