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 ...
// Pin Definitions #define MQ2PIN A0 // MQ-2 analog output to Analog Pin A0 #define BUZZER 8 // Buzzer connected to Digital Pin 8 #define LED 9 // LED connected to Digital Pin 9 // Smoke detection ...
The Arduino Smoke Detector, a wireless device that sends text messages and automated phone calls to users when a smoke sensor is triggered, won the Hacker's Choice Award at last weekend's ...
One of the highest-volume products used in homes, commercial buildings, and factories is the smoke detector. Smoke detectors are mandated by government everywhere, so almost everyone has one.
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