mq2-cigar-sensor

An Arduino Sketch for MQ2 Smoke Sensor to detect Cigarette Smoke using ATmega328P boards

Pre-Requisities

• Arduino IDE
• Arduino UNO
• MQ2 Smoke Sensor
• Wires
• Soldering Kit

Circuit Diagram

Theory

We can measure PPM values using MQ2 sensor and a cigarette emits Carbon Monoxide(CO) as the main output gas so we're calibrating the MQ2 sensor to detect Carbon Monoxide levels and detect cigarettes.

Required Arduino Libraries

• by Miguel Califa