This is a prototype of a smart home system that uses the ultrasonic sensor to detect motion and ensures that electronics turn off (led) when not at home ( no motion).

I have used Raspberry Pi 3 to run Node-red so that it publishes live time results to the web server hosted via wifi router

We often forget to turn off electric appliance when leaving home and this project helps save electricity by turning on all electronic system connected to it.

This system is meant for light bulbs at home only , connecting other appliance will damage this system as it follows a series connection.