MINI PROJECT
VISITOR COUNTER
Abstract:
The Visitor Counter is an automated system that tracks the number of people entering and exiting a
space in real time. It uses two IR sensors for detection, an I2C LCD Module with a 16x2 LCD for
display, and a Buzzer Module for audible alerts. The system is cost-effective, easy to implement, and
reliable, making it ideal for applications in malls, offices, libraries, and public spaces. Future
enhancements could include IoT integration for remote monitoring and multi-person detection for
greater accuracy.
Objectives:
It Count the number of visitors entering and exiting a room/building.
Use IR sensors to detect movement.
Display the visitor count on a 7-segment display/LCD.
Process the data using an Arduino Uno.
Components Used:
Arduino Uno
IR Sensor Module – 2 Nos
I2C LCD Module with 16x2 LCD
Buzzer Module
Power supply
Jumper Wires
Methodology:
1. Sensor Placement: Install two IR Sensor Modules at the entrance/exit to detect
motion .Position sensors at an appropriate height to detect people accurately.
2. Signal Processing: When a visitor crosses the first sensor, it triggers an entry count. When
the second sensor is crossed, it confirms entry/ exit.Signals are sent to the Arduino Uno for
processing.
3. Count Management: The Arduino increments or decrements the visitor count based
on the sensor activation sequence. The updated count is stored and processed in real-
time.
1
, Pin Connections:
Components Arduino Pin
IR SENSOR(IN) D2
IR SENSOR(OUT) D3
BUZZER(IN, OUT) D2, D3
I2C LCD VCC 5V
I2C LCD GND GND
I2C LCD SDA A4
I2C LCD SCL A5
Simulated Connection:
Working Principle:
The Visitor Counter system operates through a combination of IR sensors, an Arduino Uno
microcontroller, an I2C LCD Module (16x2), and a Buzzer Module to accurately count and
display the number of visitors entering or exiting a specific area. The process is as follows:
1. IR Sensor Detection: Two IR Sensor Modules are strategically placed at the
entrance/exit, aligned to detect the passage of individuals.When a person crosses
the first sensor, the infrared beam is interrupted, triggering the sensor and
sending a signal to the Arduino Uno.
2
VISITOR COUNTER
Abstract:
The Visitor Counter is an automated system that tracks the number of people entering and exiting a
space in real time. It uses two IR sensors for detection, an I2C LCD Module with a 16x2 LCD for
display, and a Buzzer Module for audible alerts. The system is cost-effective, easy to implement, and
reliable, making it ideal for applications in malls, offices, libraries, and public spaces. Future
enhancements could include IoT integration for remote monitoring and multi-person detection for
greater accuracy.
Objectives:
It Count the number of visitors entering and exiting a room/building.
Use IR sensors to detect movement.
Display the visitor count on a 7-segment display/LCD.
Process the data using an Arduino Uno.
Components Used:
Arduino Uno
IR Sensor Module – 2 Nos
I2C LCD Module with 16x2 LCD
Buzzer Module
Power supply
Jumper Wires
Methodology:
1. Sensor Placement: Install two IR Sensor Modules at the entrance/exit to detect
motion .Position sensors at an appropriate height to detect people accurately.
2. Signal Processing: When a visitor crosses the first sensor, it triggers an entry count. When
the second sensor is crossed, it confirms entry/ exit.Signals are sent to the Arduino Uno for
processing.
3. Count Management: The Arduino increments or decrements the visitor count based
on the sensor activation sequence. The updated count is stored and processed in real-
time.
1
, Pin Connections:
Components Arduino Pin
IR SENSOR(IN) D2
IR SENSOR(OUT) D3
BUZZER(IN, OUT) D2, D3
I2C LCD VCC 5V
I2C LCD GND GND
I2C LCD SDA A4
I2C LCD SCL A5
Simulated Connection:
Working Principle:
The Visitor Counter system operates through a combination of IR sensors, an Arduino Uno
microcontroller, an I2C LCD Module (16x2), and a Buzzer Module to accurately count and
display the number of visitors entering or exiting a specific area. The process is as follows:
1. IR Sensor Detection: Two IR Sensor Modules are strategically placed at the
entrance/exit, aligned to detect the passage of individuals.When a person crosses
the first sensor, the infrared beam is interrupted, triggering the sensor and
sending a signal to the Arduino Uno.
2
