MQ2 Gas Sensor to Arduino MQ2 Sensor is a gas module and it is suitable to detect Hydrogen, LPG, Smoke, CO, and Alcohol. It has high sensitivity and fast response time to measure and take the data. Sensitivity can be adjusted by potentiometer behind it MQ2 Sensor Pin Configuration Circuit MQ2 Connections with Arduino MQ2 Connections… Read More »How to Connect MQ2 Gas Sensor to Arduino
