Digital sensor(IR) with Counter -Arduino and Simulink

When object is detected by IR sensor, Counter starts increasing. Alarm is ON, When counter reaches maximum value

IR sensor connected to Arduino(pin 2) and LED and Buzzer are connected to Digital output pin (13,8). Sensor detects the object and counter value is increasing. If the counter reaches maximum value 6, the Alarm is ON

The simulation circuit is developed for the application mentioned below and it is downloaded to Arduino.

Application:1. "Detection of Number of person entering lift/room/vehicle"

2. Counting living things/non living things