The Development of LPG Gas Detection Applications and Automatic Valve Control With Internet of Things
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Abstract
This paper presents the development and implementation of an IoT-enabled gas leak detection and alert system designed to improve safety in environments where LPG and similar gases are used. This system monitors gas concentration in real-time using the MQ-5 gas sensor integrated with the ESP8266 NodeMCU V2 microcontroller. When gas levels exceed safe thresholds, a multi-level alert system is triggered, which includes notifications via LINE Notify and an automatic shut-off mechanism to close the gas valve using a Servo Motor. The system operates autonomously, providing rapid responses to mitigate risks associated with gas leaks. Our results demonstrate the effectiveness of this system in reducing the risks of health hazards and fire outbreaks due to gas leaks.
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