Visitors Counter with Gate Control and Automatic Room Light Controller (ON/OFF)

The visitor counter with automatic gate control is a device capable to help against COVID19 and monitor the
density of people within the premises and automatically control the light in the room. The door allowing the person
to enter beyond the limit is ok, the door will not allow anybody to enter the room if the number of people is equal to
the limit nobody can have access to the house, room, offices, organizations, or industries. The device used Infrared
Ray sensors for both in and out of the house and the system is interfaced with a microcontroller atmega328P, it uses
L293D as a door driver that allows the user to enter and exit the room or house. The LCD displays the performance
of the research. The Light Emitting Diode Green indicates the number of people in the house is below the required
limit registered in the system while the Red LED indicates the equal number of people leaving the house has
reached the required limit registered in the system. The buzzer will alarm if the number of people is equal to the
number of people register in the system and the door will never open again until one person leaves the house then
another person can enter again. Automated appliances are in high demand in today's world. With rising living
standards, there is an urgent need for the development of circuits that would reduce life's complexity to simplicity.
This research, titled "Visitors Counter with Gate Control and Automatic Light Control (ON/OFF)," is designed and
presented to count visitors to an auditorium, hall, offices, malls, sports venues, and so on. The system tracks both
entering and exiting visitors to the auditorium, hall, or other location where it is installed. The system identifies the
visitor's entry and exit based on the interruption of the sensors. When the system is successfully implemented, it
displays the number of visitors present in the auditorium or hall. When used in places where visitors must be
counted and controlled due to the outbreak of this COVID19, this is a cost-effective system. Counting visitors can
be time-consuming, so it helps to maximize employee efficiency and effectiveness, time savings, and an
organization's sales potential, among other things.