The main aim of the project is to monitor the smoke in particular area and alerts the person through buzzer. Automation is the most frequently spelled term in the field of electronics. The hunger for automation brought many revolutions in the existing technologies. The industrial/home automation techniques employed must be economic and simple to use. By analyzing all these factors, this advanced industrial home automation is proposed. The main controlling device of the whole system is a LM358 comparator. Smoke sensor and buzzer are interfaced to the comparator. The comparator continuously gets the smoke from the respective sensor. This data is processed and compared with threshold point set though the pot. The comparator horns a buzzer, if the sensor detects smoke.  

The main objectives of the project are:

1. Continuous monitoring of smoke level
2. Audible alerts through buzzer.

  This project provides exposure to the following technologies:

1. Characteristics of smoke sensor.
2. Interfacing sensor to the comparator.
3. PCB designing

 

The major building blocks of this project are:

1. Regulated power supply.
2. Comparator
3. SMOKE
4. Buzzer with driver.
5. POT
6. LED indicator.

Block Diagram:

video: