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Counter Using Proximity Sensor with ESP8266 🚀

This repository contains a project that uses an IR proximity sensor and an ESP8266 microcontroller to count objects passing through a designated area. The count is displayed on a 7-segment display, making it a practical solution for object detection and monitoring.

📜 Problem Statement

Develop a reliable counter system using IR sensors integrated with the ESP8266 microcontroller. The system should accurately track and count objects passing through a defined area, displaying the count on a 7-segment display.

🛠️ Features

  • IR Sensor-Based Object Detection: Uses an IR proximity sensor for accurate object detection.
  • 7-Segment Display: Displays the count in real-time.
  • ESP8266 Microcontroller: Provides efficient control and connectivity options.
  • Cost-Effective Solution: Affordable and adaptable for IoT and automation projects.

📂 Project Structure

  • counter_proximity_sensor.ino: Arduino code for the counter system.
  • ESD_Report.pdf: Detailed report documenting the problem statement, theory, algorithm, source code, and conclusions.
  • README.md: Documentation for the repository.

🔧 How to Run

Hardware Requirements

  1. ESP8266 Microcontroller (e.g., NodeMCU)
  2. IR Proximity Sensor
  3. 7-Segment Display (Common Cathode)
  4. Breadboard and Jumper Wires

Software Requirements

  1. Arduino IDE: Download from here.
  2. IRremote Library:
    • Install via Arduino IDE:
      • Go to Sketch > Include Library > Manage Libraries.
      • Search for IRremote and install it.

Steps to Run

  1. Circuit Connections:

    • Connect the IR sensor's OUT pin to D7 on ESP8266, VCC to 3.3V, and GND to GND.
    • Connect the 7-segment display's pins (a to g) to D0 to D6.
  2. Upload Code:

    • Open counter_proximity_sensor.ino in Arduino IDE.
    • Select the correct board (NodeMCU 1.0 (ESP-12E Module)) and port under Tools.
    • Click Upload to flash the code.
  3. Run the System:

    • Power the ESP8266.
    • The IR sensor will detect objects, and the count will be displayed on the 7-segment display.

🖼️ Sample Circuit Diagram

Picture1


📘 Report Highlights

Components Used

  • IR LED and Photodiode: Used for emitting and detecting infrared signals.
  • ESP8266: Provides Wi-Fi connectivity and serves as the primary microcontroller.
  • LM358 Op-Amp: Used for signal amplification in the IR sensor module.
  • Variable Resistor: Adjusts detection range.

Algorithm

  1. Initialize pins for the 7-segment display and IR sensor.
  2. Read IR sensor output to detect object presence.
  3. Increment the count if an object is detected.
  4. Reset the count to 0 after reaching 9.
  5. Update the 7-segment display with the current count.

For detailed information, refer to the ESD_Report.pdf file.


📊 Applications

  • Visitor counting in public spaces.
  • Object counting on conveyor belts.
  • Monitoring systems for IoT applications.

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Object counter using IR proximity sensor and 7-segment display with ESP8266

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