Story:- 

So if I talk about this project, then I made this project because it was a matter of when the lockdown got opened and health specialists were telling us in the news that corona can still spread, so keep alert! So I was thinking that the shopkeeper who is in the shop is at risk because many customers come to the shop from different places and the virus can be spread from customer to shopkeeper and to the shopkeeper's family as well. After all this, I thought, why not make a device so that it can help the shopkeeper keep more alert on this So finally I made a project, which I have named as COVI PREVENTO because this device prevent us from covid (COVI used for Covid and Prevento for Prevent).

                                                              Crowd in Shops

Working:-

So it works like this, the MLX90614 Infrared Sensor checks the body temperature of the customers, and if the body temperature is as much as the normal body temperature, then NodeMCU will send the phone notification to the shopkeeper that "no problem" and if the temperature is normal If the body temperature is higher, then it will send a notification to "maintain alert." and for notification I have used BLYNK  

                                When the Body temperature is same as Normal Body Temperature

           When the Body temperature is greater than that of normal body temperature