This circuit mainly uses MQ2 Smoke/Gas sensor and Arduino to detect and calculate the level of smoke. MQ2 gas sensor is also sensible to LPG, Alcohol, and Methane etc. This Smoke Detector can be ...

This circuit mainly uses MQ6 Smoke/Gas sensor to detect the level of smoke. MQ6 gas sensor is also sensible to LPG, Alcohol, and Methane etc. Here we have used Buzzer as a Smoke alarm, which is driven ...

The MQ2 Gas Sensor Smoke Detector project combines the Arduino Uno R3 microcontroller with the MQ2 gas sensor to create an efficient and reliable smoke detection system. This project serves as an ...

In this project, we will build Gas Leak Detection & Alarm System using MQ2 Gas Sensor and Arduino UNO Board. The MQ2 sensor is a versatile gas sensor capable of detecting a wide range of gases as well ...

Fig. 1 shows circuit diagram of the smoke detection alarm. The basic unit employs dual op-amp LM358 (IC1), transistor T1 and timer NE555 (IC2), configured in astable mode. Selection of MQ* sensor is ...

This project will help you make an LPG leakage cum smoke detector kitchen security alarm circuit using a MQ2 gas sensor. This project will help you make an LPG leakage cum smoke detector kitchen ...

Smoke detector with gas sensor TGS 813 – source. The simple schematic diagram of a smoke detector presented here utilizes the gas sensor TGS 813 as the main detecting component. The circuit is pretty ...