social distance tag

[yahaya siyabu]

I want a circuit diagram for social distance tag.
the functionality;
the device should vibrate when the person is getting closer to the one wearing the tag

 

[Ian Rogers]

You can already download an app for this??

 

[shortbus=]

You can already download an app for this??

Same for contact tracing.

 

[gophert]

You can already download an app for this??

Same for contact tracing.

what happens when the other person doesn't have a smart phone?
Only 40% of people in Malawi have any type of phone.