Detects the concentration of gas leaked into the atmosphere and displays it on a screen and sounds an alarm This project was built using the arduino uno break out board. COMPONENTS INVOLVED -MQ5 gas sensor -LCD -Buzzer -LED bulbs -Resistors -jumpper wires.
HOW IT WORKS the mq5 sendor detects the prescence of methane gas in the air and the LED bulb comes on. the buzzer also comes on. There 5 LED bulbs once there is no LPG gas detected in the air the gree LED comes on and it remains so until LPG is detected in the air. the other 4 LED bulbs come on the depending on the concentration of lpg in the air. The buzzer also produces different sounds at different at various concentration levels.