One of the fires that occurred in the kitchen room was from an LPG gas leak, to prevent fires that occurred, it was necessary to have a tool that could dispose of LPG gas leaks in the kitchen room, from these problems, systems and tools were made using the Wemos D1 microcontroller which was connected to the MQ-2, DHT 11, IR Flame and PIR sensors and the Blynk application to monitor remotely with internet of things technology. For the MQ-2 sensor when detecting gas above 200 ppm the alarm will sound and activate I blower and will activate 2 blowers when detecting gas above 700 ppm, in addition to that the tool made is also equipped with automatic settings on fire extinguishing with IR Flame sensors, temperature settings with DHT 11 sensors and lamp settings with PIR sensors. From the systems and tools made have the benefit of preventing early fires in the kitchen room.

Keywords: Internet of things, Blynk, Wemos D1, sensors