One of the problems we encountered was how to implement two devices to communicate with the microcontroller at the same time.

Just a few days before the demo day, we discovered that the Circuit Playground has interesting features and there are many extensions that can be changed to make the features interesting.

At the beginning we intend to make an anti-theft system. The specific function is to turn on the camera and perform face recognition when an object is detected close to the camera, and if the recognition result is judged to be a person, an alarm is issued and a screenshot is uploaded to the Internet.

Components used: Adafruit Feather RP2040 Airlift wifi module APDS 9960 sensor

In this project, we aim to create an interesting Doorbell system.

Our design: We made a safe doorbell system. Pros: 1: It can keep kids safe and it can use cute pictures and songs as a sign to remind kids whether they can open the door when they stay at home alone.

Team Overview: [Yixuan Wang](https://github.com/Sharonun) [Chenye Xiong](https://github.com/xcyxcyxcyxcy) [Zhuoling Li](https://github.com/Zhuoling11)