We built a Smoke Detector Circuit using Arduino and MQ2 gas sensor, which not only sense the smoke in the air but also reads and displays the level of Smoke in the Air in PPM and start the buzzer if ...

Smoke Detectors are very useful in detecting smoke or fire in buildings, and so are the important safety parameters. In this project, we are going to build a Simple Smoke Detector Circuit without ...

In this project, we are going to make a smoke alarm for our kitchen using a gas sensor. This sensor will detect the intensity of smoke. If the intensity of smoke exceeds a certain limit, the alarm ...

Optical smoke alarm uses MOC 7811 which is an optocoupler.The sensor designed for this device is based on the principle of scattering of infrared rays.The light coming from the light source passes ...

This home smoke detector circuit warns the user against fire accidents. It relies on the smoke that is produced in the event of a fire and passes between a bulb and an LDR, the amount of light falling ...

There had been many previous studies that discussed smoke detection, there are quite a number of them, such as a cigarette detection machine in a closed room primarily based on the internet of things ...

Presented here is a circuit for raising an alarm on detecting smoke or LPG cooking gas leakage, or even alcohol vapours in breath. This detection alarm is achieved by using a basic unit with different ...

This smoke alarm built using a UM3562 sound generator can help maintain a smoke-free environment in apartments, offices, factories, restaurants, hospitals, etc. In this article, we’ll explore the ...