The main aim of this project is to monitor the smoke and gas leakage in Industry or Home and if it exceeds, it alerts through the person through BUZZER. This project has an OLED display to Display the smoke and carbon monoxide concentrations in PPM. We have used the MQ2 Gas sensor module to detect Smoke and carbon monoxide concentrations present in Air. MQ2 is a versatile sensor that can detect LPG, smoke, alcohol, propane, hydrogen, methane, carbon monoxide, etc. This makes the MQ2 Gas Sensor Module an excellent choice for building an indoor air quality monitoring system. Here we have three push buttons. Among them, the 1st button is used to turn ON and OFF Alarm system. The 2nd and 3rd Buttons help to switch the monitoring screen between Smoke and carbon monoxide. The application program for the microcontroller will be written in embedded ‘C’ and will be stored in the flash memory of the microcontroller.            

The major features of this project are:

• Provides Home or Industrial security.
• Smoke and Gas leakage detector.
• Display the smoke and carbon monoxide concentrations in PPM.
• Detection of Smoke and Gas alerts using buzzer and OLED.
• To achieve this task using Arduino nano microcontroller.

           

The major building blocks of this project are:  

1. 7V Battery Power Supply.
2. MQ-2(Gas & Smoke) Sensor.
3. Arduino nano Micro Controller.
4. Buzzer.
5. OLED.

         

Software’s used:  

1. Arduino IDE Studio Compiler for Embedded C programming.
2. Express SCH for Circuit design.

               

Block Diagram:        

video: