Abstract: The novel coronavirus disease (COVID-19) has already affected over 6.9 million people, claiming more than 400 000 lives in over 200 nations all over the world. In this paper an embedded system with MQ sensor for breath based covid19 detection. RFID tag present in the embedded which holds the location of the specific shop. When a person enters the shop has a portable device in which an RFID reader is present, so while entering RFID reader reads the geographical coordinates present in the shop’s RFID tag and stores in into the node MCU present ...
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Topics: 
Embedded system
Computer security
Computer hardware