In this project, we will build Gas Leak Detection & Alarm System using MQ2 Gas Sensor and Arduino UNO Board. The MQ2 sensor is a versatile gas sensor capable of detecting a wide range of gases as well ...

Our Smart Home Using Arduino Uno R4 WiFi project is designed for home safety and ... Gas Detection and Alert System: Equipped with an MQ2 gas sensor, the system can detect smoke or gas leaks and ...

Now that we have complete understanding of how the MQ-2 gas sensor works we can connect all the required wires to Arduino uno. This section of the article will be divided into two parts, one shows ...

5. The source code for both projects is the same. Fig.5. Circuit with relay driver ULN2003 and relay In this proposed project, we have interfaced Arduino Uno with MQ2/MQ6 sensors, SIM900A GSM module, ...

MQ2 is a commonly used gas sensor in the MQ series ... The circuit comprises an Arduino Uno board, Zigbee, temperature sensor, gas sensor, humidity sensor, relay, LCD, DC motor, MOSFET, pump, and a ...