InAlert: sensor de gás móvel

• Palavras-chave: gases inflamáveis; detecção de gases; aplicativo mobile; sistemas embarcados.

• Keywords: flammable gases; gas detection; mobile application; embedded systems.

• Abstract: Flammable gases are present in various environments, both domestic and industrial, and are characterized by their high flammability when exposed to air, oxidizing agents, and ignition sources. Among the most commonly used gases is Liquefied Petroleum Gas (LPG), popularly known as cooking gas, which is widely used in Brazilian households and is responsible for thousands of accidents annually due to improper handling and leakage. The objective of this study was to develop a flammable gas leak monitoring system integrated with a ticketing application. For this purpose, the Tinkercad platform was used for online prototyping of the electrical circuit, followed by the development of a physical system using electronic components such as an ESP32 microcontroller, buzzer, MQ-2 gas sensor, connecting cables, and an LCD display, among others. Additionally, an application integrated with the detection system was developed, enabling real-time monitoring of gas concentrations in previously registered environments. The integration of hardware and software improved the efficiency of leak detection and data management. Furthermore, real-time monitoring enables the rapid implementation of preventive measures, thereby reducing the risk of accidents.