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Q3) Due to coronavirus, the number of people inside stores should be limited to a certain number. Write a sketch in IDE that uses two
Q3) Due to coronavirus, the number of people inside stores should be limited to a certain number. Write a sketch in IDE that uses two ultrasonic sensors to calculate the number people inside the store and present a message on the entrance door (use serial monitor here instead) if the number of people exceed a predefined threshold. The store has a separate entrance and exit doors.
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