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 ...

To build this LPG gas leakage detector using arduino uno, we used a LPG gas sensor module to detect LPG Gas. When LPG gas leakage occurs, it gives a HIGH pulse on its DO pin and arduino continuously ...

This version should use a 3V3 device since all sensors are 3v3 compliant like the Arduino Pro Mini. Receive Side. The Receive code (specifically Receive_LCD.ino) receives these ascii strings then ...