This document introduces the features, applications, interfaces, and usage methods of the MQ-5 gas sensor.
The document describes the Waveshare MQ-5 gas sensor, which uses SnO2 as a gas-sensing material. It is highly sensitive to butane, propane, methane, liquefied gas, natural gas, and coal gas. The module supports both digital (DOUT) and analog (AOUT) output interfaces.
The module requires an operating voltage between 2.5V and 5.0V.
It is designed to detect liquefied gas, natural gas, and coal gas.
The sensor must be warmed up for one minute before checking results.