MQ-XX Sensor series is a sensitive gas detection sensor which provide a lower conductivity in a clean air. When the sensor detect a gas exist in area the sensor conductivity will increase. These sensor has a high sensitivity to Ozone, LPG, C3H8, CO, H, C2H6O and C6H6  gas detection. MQ sensor series are useful in domestic, industrial, portable gas detection and automotive. Please refer to diagram and datasheets below for further information and characteristics on each model of MQ sensor.

Required Components

  • NUCLEO, Discovery, ARM CORTEX STM32F, STM32F Dev Board
  • MQ Gas Sensor / Module
  • Jumper Wires / DuPont Wires
  • Solder Less Bread Board

Wiring Guide 

Schematics Diagram & MQ Sensor Functions

Source Code





Downloads

  • STM32F10X Project File / Configuration | Zip
  • Download MQ 131 Gas Sensor Datasheet | PDF
  • Download MQ 02 Gas Sensor Datasheet | PDF
  • Download MQ 03 Alcohol, Ethanol Sensor Datasheet | PDF
  • Download MQ 04 Methane Sensor Datasheet | PDF
  • Download MQ 05 Hydrogen, Natural Gas  Sensor Datasheet | PDF
  • Download MQ 06 LPG, Propane  Sensor Datasheet | PDF
  • Download MQ 07 Carbon Monoxide Gas Sensor Datasheet | PDF
  • Download MQ 08 Hydrogen Sensor Datasheet | PDF
  • Download MQ 09 Carbon Monoxide Sensor Datasheet | PDF
  • Download MQ 135 Benzene, Alcohol, Smoke Sensor Datasheet | PDF
  • Download MQ 309A Carbon Monoxide Sensor Datasheet | PDF
  • Download MQ 303A Alcohol Sensor Datasheet | PDF
Wiring the MQ-XX Sensor for Ozone, LPG, C3H8, CO, H, C2H6O, C6H6 Gas Detection on STM32F
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