Bidirectional Visitor Counter System

This System measures the flow of people entering or leaving a room. Also gives information on how many people are inside the room.

My shopkeeper uncle wanna know how many customers visit his shop in a day. So let's make an IoT-based Customer Counter for him which will notify him of how many customers visit his shop in a day through SMS.

Things used in this project:

Hardware Components:

Bolt Wifi Module	X 1
Arduino Uno	X 1
HC-SR04 Ultrasonic Sensor	X2
Jumper Wires	As Required
LEDs	2

Software and online services:

Bolt Cloud

Arduino IDE

Twilio

Hardware Setup:

In the below image I am specifying the left sensor as sensor 1 and the right sensor as sensor 2.

Step 1: Connect Vcc and GND of sensor 1 to Vcc and GND of sensor 2 respectively.

Step 2: Connect Vcc and GND of sensor 1 to 5v and GND of Arduino respectively.

Step 3: Connect Trig and Echo Pin of sensor 1 to Pin 7 and Pin 8 of the Arduino respectively.

Step 4: Connect Trig and Echo Pin of sensor 2 to Pin 5 and Pin 6 of the Arduino respectively.

Step 5: Connect RX and TX of Bolt Wifi Module to TX and RX of the Arduino respectively.

Step 6: Connect the positive and negative terminal of one LED to Pin 11 and the GND of the Arduino respectively.

Step 7: Connect the positive and negative terminal of the other LED to Pin 9 and Pin 10 of the Arduino respectively.

Step 8: Connect 5v and GND of the Bolt Wifi Module to Vcc and GND of the sensor 2 respectively.

Schematics 

Circuit Diagram of The System

Software Programming:

Step 1: Connect the Bolt device to Bolt Cloud.

Step 2: Create an account in Twilio and log in to your account.

To know how to set up Whatsapp sandbox click on this link (https://console.twilio.com/us1/develop/sms/try-it-out/whatsapp-learn?frameUrl=%2Fconsole%2Fsms%2Fwhatsapp%2Flearn%3Fx-target-region%3Dus1) .

Step 3: Get the Codes.

Go to the link (https://github.com/nipunjyoti/Counter-System) . Download CounterSystem.py and CounterSystem.ino. Upload CounterSystem.ino code to Arduino.

Step 4: Changes in Code.

In the python_code.py file change SID, AUTH_TOKEN, FROM_NUMBER, TO_NUMBER, API_KEY and DEVICE_ID. Make sure your Computer has Python installed on it and don’t forget to add Bolt Library to it. Use the command “pip install boltiot”.

Step 5: Run the python code.

Now you are all set up and ready to get Whatsapp message.

OUTPUT:

Conclusion:

It makes my uncle's work very easy. He doesn't even need to count the number of customers manually. Everything is automatic. He will get a Whatsapp message regarding the Visitor count in his shop.

This system can also be used in Exam Centres to determine the number of students attended the exam.

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