Reducing the effects of greenhouse gas emissions has been a global problem; the implications of deforestation, coal and other fossil fuel burning have caused more harm than good, despite serving the purpose for which they were intended, namely energy provision. The hunt for renewable and clean energy has increased the use of liquefied petroleum gas (LPG), which is more efficient and clean in terms of greenhouse gas emissions, as well as the carnage. When any gas leakage is detected beyond the threshold of 390 PPM, this research effort designed and built an LPG leakage detection system using an ATmega328 to coordinate the processing and sensing of the gas leakage by the sensor MQ2. When this occurs, the technology intelligently activates the LCD, displacing the text emphasizing the LPG leaking while also triggering the buzzer to inform the user. During the research, the technology proved to be effective in identifying LPG leakage.