This code helps interface the MQ2 gas sensor with an Arduino microcontroller. The MQ2 gas sensor detects the levels of LPG, CO and smoke in air. This project can be used in various applications like ...

Arduino Code for Interfacing MQ-2 Gas Sensor Module. The code for the Arduino mq-2 gas sensor module is very simple and easy to understand. We are just reading the analog data out of the sensor and ...

//Ro is the resistance of sensor in clean air(Run the following code in clean air for finding Ro and take the value of Resistance in the serial monitor) //Rs is the resistance of the sensor when ...

Now just upload the code to the Arduino and power on circuit and you are done! Your Smoke Detector is ready to test. Check the Video at the end for demonstration. Circuit Explanation: In this Smoke ...

LPG is an alternative fuel used for daily use. Due to its low cost and ease of installation. This article covers an Arduino-based gas detection system that uses an Arduino UNO R3 board and gas sensors ...