🔧 Components: MQ9 gas sensor, Arduino UNO, I2C LCD, buzzer, red LED, and basic circuit components. 📟 Function: The system detects gas concentration and triggers alerts via buzzer, red LED, and ...
This project uses an MQ2 gas sensor, relay module (for motor or exhaust fan), buzzer, and LEDs to create a complete gas leakage detection and alert system using Arduino. When gas concentration crosses ...
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