Here we have developed an Arduino based LPG gas detector alarm ... We can also build it by using LM358 or LM393 and MQ3. As shown in the schematic diagram above, it contains Arduino board, LPG GAS ...

In this project, we will build Gas Leak Detection & Alarm System using MQ2 Gas Sensor and ... a 5V Buzzer to the digital Pin 2 of the Arduino Board. Assemble the circuit on a breadboard as per the ...

LPG (liquid petroleum gas) used in kitchen gas cylinders is a mixture of propane and butane in diverse compositions. Even though LPG is essential for use in kitchens and the public is usually alert ...