Arduino drives MQ5 analog gas sensor (gas sensor)

Table of contents

1. Sensor characteristics

2. Hardware schematic diagram

3. Controller and sensor wiring diagram 

4. Driver

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The MQ5 gas sensor can detect liquefied petroleum gas, natural gas, coal gas and other gases in the air very sensitively. When used in combination with Arduino, it can make works related to fire liquefied petroleum gas, natural gas, and gas leakage alarms.