Abstract

In this study, a Smart Liquefied Petroleum Gas Leakage Detector system based on the Internet of Things with the ESP8266 NodeMCU Module is designed and tested. The system uses an MQ-6 sensor, IR flame sensor, solenoid valve, buzzer, and the Blynk application to monitor and control gas levels. Experimental methods were used to test the sensor response of the system at different distances. The maximum detected distance was found to be 7 cm. The LPG gas sensor value was tested at distances ranging from 1 cm to 10 cm and the average gas values were found to be 5467 PPM, 1052.6 PPM, 798 PPM, 557.4 PPM, 489 PPM, 387.2 PPM, 231.4 PPM, 152.4 PPM, 141.8 PPM, and 121.6 PPM at 1 cm, 2 cm, 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, and 10 cm distances, respectively. The results showed that the system is able to control and monitor gas levels effectively.