Abstract:
This study focuses on a simple and quick method of how to detect places that have the potential to spread covid
19 through the air by using temperature, humidity and gas sensors. Therefore, people will be alert and careful
with the environment. This tool is for home quarantine. Users need to connect the device to the phone and use
the Blynk Apps to know the temperature, humidity and gas values whether gas is detected or not. Users can
check the temperature, humidity and gas to check whether the area is still active with the covid 19 virus or not.
The virus will be inactive when the temperature (21-23) ℃, humidity (40-60)RH and gas is not detected. Users
can check the status of the quarantine area whether it is very good, bad or very bad based on the situation. The
method is to look at the light on the application. The application will show a light blue led (very good) when the
temperature is above 21, the humidity is above 40 and gas is not detected. The application will show a light
yellow led (bad) when it has 3 situations. First condition temperature 21 above, humidity 39 below and no gas
detected. The second condition is temperature 20 below, humidity 40 above and gas is not detected. Third
situation temperature 21 above, humidity 40 above and gas detected. The app will show the led turn red (very
bad) when it has 4 situations. The first condition is temperature is 20 and below, humidity is 39 and below and
gas is detected. Second condition temperature 20 below, humidity 39 below and gas not detected. The third
condition is temperature is 20 and below, humidity is 40 and above and gas is detected. The fourth condition is
temperature is 21 and above, humidity is 39 and below and gas is detected. If the status is very good, then the
area is safe, if the status is bad, then it must be careful with the area and if the status of the area is very bad,
then the area still has an active covid virus.
