IoT based Dangerous Substances Smell Detecting System

The detection and monitoring of hazardous gases such as methane (CH4) and carbon monoxide (CO) are critical for ensuring safety in industrial, household, and public environments. This IoT-based system combines advanced gas sensors, microcontrollers, and IoT modules to provide real-time air quality monitoring and proactive response mechanisms. The system measures gas concentrations, processes the data through a microcontroller, and transmits the information to cloud platforms for continuous observation and analysis. Real-time alerts are generated and delivered via messaging applications, enabling immediate notification to relevant stakeholders. The system addresses safety challenges by preventing incidents related to gas leaks and exposure, making it suitable for industrial facilities, residential spaces, and public safety applications. The solution supports real-time visualization of air quality data, long-term storage for analysis, and scalability for extensive monitoring networks. The architecture employs calibrated gas sensors, efficient data processing, and reliable cloud integration to ensure accuracy and responsiveness. Notifications delivered through widely used messaging platforms enhance accessibility and user engagement, facilitating timely interventions during critical situations. Designed according to IEEE standards, the system ensures secure data handling, interoperability, and adaptability for diverse environments. This project offers a cost-effective and energy-efficient solution that contributes to environmental monitoring, industrial safety, and smart city initiatives. Its seamless integration into existing IoT infrastructures and focus on scalability highlight its potential for widespread adoption in safety and monitoring systems.