Bounab, DounyaAbaoub, BelkisRecham, Djamil2023-10-032023-10-032023http://hdl.handle.net/123456789/16849In this study, we developed a hazardous gas detection circuit using an Arduino board to prevent asphyxiation accidents. The system utilizes gas sensors to detect harmful gas concentrations, When the concentration exceeds a predefined threshold, the user is immediately alerted via SMS on their mobile phone. Additionally, a visual and auditory alarm, is activated at home, including an LED and a buzzer. To ensure maximum safety, the natural gas supply is also cut off. Thus, this circuit provides effective prevention of accidents related to hazardous gases. .frSimulation et realisation; Circuit Detecteur de gaz toxiqueThesis