This project focuses on the design and implementation of a Chemical Composition Detector, Analyzer, and Purifier using various components such as the M35 smoke sensor, LED indicators, relay modules, exhaust fan, LCD display, buzzer, and Arduino Uno microcontroller. The primary objective is to develop a system capable of detecting and analyzing chemical compositions in the air, purifying it if necessary, and providing feedback through visual (LEDs and LCD), auditory (buzzer), and mechanical (exhaust fan) means. The M35 smoke sensor serves as the core detection unit, capable of sensing various gases and particles in the air. When pollutants are detected beyond a preset threshold, the Arduino Uno processes this information to activate corresponding components. The LED indicators provide visual feedback to indicate the presence and level of pollutants. Simultaneously, the LCD display offers detailed information regarding the detected chemicals. In cases where purification is required, the Arduino Uno triggers the relay module to activate the exhaust fan, which ventilates the area to improve air quality. The buzzer provides an audible alert when hazardous levels are detected, ensuring immediate attention. Throughout the operation, real-time data is displayed on the LCD screen, enhancing user awareness and facilitating informed decisions. The system’s versatility and effectiveness make it suitable for various applications, including indoor air quality monitoring in homes, offices, and industrial settings. By integrating advanced sensor technology with an Arduino-based control system, this project demonstrates an efficient approach to chemical composition detection, analysis, and purification, contributing to environmental health and safety.

Features: .

1. Smoke detection.
2. Buzzer alert.

  This project provides exposure to the fallowing technologies:

1. Interfacing smoke sensor to arduino microcontroller.
2. buzzer
3. Embedded C programming for microcontroller.
4. Design of PCB.
5. Hardware/Firmware design and development.

The Major Building blocks of this project are:  

1. Arduino UNO.
2. Regulated power supply
3. LED Indicator.
4. M35 Smoke sensor.
5. LCD
6. Relay
7. Exhaust fan
8. Buzzer.

  Software’s used:

1. Arduino IDE for compiling and dumping code into Microcontroller
2. Express SCH for Circuit design.
3. Proteus for hardware simulation.

     

Regulated power supply:    

 

video: