Arduino Gas Leak Detector Using MQ-5 - Economical

An MQ-5 gas sensor is used with an Arduino Uno to create a compact gas leak detection system. A buzzer and LED are used for alerts.

Quantity		Component name
1	×	Arduino UNO
1	×	MQ-5 Gas Sensor
1	×	Buzzer
1	×	LED Fiber Optics / Emitters
1	×	220Ω resistor
1	×	Breadboard & jumper wires Electronic Components / Misc. Electronic Components
1	×	9V battery or USB