Arduino UNO Carbon Monoxide Detector

Carbon Monoxide (CO) is a colorless, odorless, and highly poisonous gas. In Kashmir, especially during winter, people commonly use gas-based heaters in closed rooms. Inadequate ventilation can cause carbon monoxide accumulation, leading to unconsciousness and death during sleep.

This project addresses this critical safety concern by designing a low-cost CO detector using Arduino UNO and MQ-7 gas sensor that automatically activates a buzzer alert and exhaust fan when dangerous CO levels are detected.