Estimation and Detection of Liquefied Petroleum Gas Leakage Using 555 Timer
The aim of this paper is to detect the liquefied petroleum gas leakages and alert the users through speaker. Here we used MQ6(gas sensor) to detect the gas which is leaking. The output of the gas sensor is used to drive a 555 Timer based on astable multivibrator.555Timer acts as a tone generator. The frequency of tone can be varied by using preset pin. The 555Timer is connected to LED and speaker. The LED will glow if there is LPG leakage.