COMPONENT USED :-
ULTRA SONIC SENSOR
WHY IT SHOULD BE USED ?
As per the new government rules everyone has to follow social distancing. That is approximately 2 meter. This is model can help people to follow the rules and stay safe.
HOW IT WORKS ?
There is an ultra sonic sensor attached in the front of the id card. In the ultra sonic sensor we have set a particular length in the sensor(70cm) when the person A comes in front of person B(69cm away from person A) the buzzer will start buzzing and the person A has to move back in order to stop the buzzing sound.
FRONT SIDE :-
BACK SIDE :-
I have also made a video on this project