MQ-5 Gas Sensor with Arduino UNO – Connection Diagram. Now that we understand how the MQ-5 gas sensor operates, we can connect all of the necessary wires to an Arduino Uno and test it out. We'll start ...

IoT-based air quality monitoring system using sensors like the laser particle monitor and MQ-135. The system collects real-time data, visualized through an interactive Power BI dashboard to track ...

Arduino Uno MQ-3 Alcohol Sensor – Connection Diagram Now that we know how the MQ-3 alcohol sensor works , we can connect all necessary wires to an Arduino Uno and see how it functions. We'll start ...

This is an Arduino code that detects using MQ-135 and DHT-11 sensors the amount of carbon dioxide and water vapour in air and triggers a buzzer alarm when their concentration passes safe levels ...