We built a Node.js-based application to automatically access the measurements coming from sensors. We also used a Node.js module to access the camera module of the Raspberry Pi. Finally, we displayed everything on a nice web interface. We also saw how to access our project from anywhere in the world using Ngrok.

You can go further with this project by including more sensors to the project. For example, you can add light level sensors and motion sensors. It is then quite easy to display the state of these sensors in the Node.js application.