IoT-based Gas Leak Detection Device

LPG gas is one of the household things in daily life. The decree of the Ministry of Energy and Mineral Resource number 1971/26/MEM/2007 dated May 22, 2007 contains the requirement of the conversion from the petroleum (kerosene) into LPG as an effort to shift from the limited natural resources from fossil energy to the more abundant natural resources. However, LPG gas is highly flammable. There have been many accidents due to leakage of LPG gas. The trigger varies from the incorrect installation to the use of defective gas cylinders. This paper aims to provide a solution to this problem by building a device that utilizing sensors connected to NodeMCU. The device performs area monitoring continuously. The gas sensor provides data to NodeMCU, and then the results are displayed as a warning to the user via an Android-based smartphone device. Using this device, users will be able to prevent accidents that occur due to gas leaks so that accidents can be avoided.