This breakout board provides a convenient PCB adapter for MQ-series gas sensors (MQ-3, MQ-4, MQ-6, MQ-7, and MQ-8). It converts the sensor's oversized, oddly-spaced pins into a standard breakout format that's easy to wire up to a microcontroller.

Connect 5 V, ground, and a load resistor to an ADC input — that's all that's needed to start reading gas concentration levels.

Key Features

• MQ-Series Compatible – Fits MQ-3, MQ-4, MQ-6, MQ-7, and MQ-8 sensors
• Simple Wiring – VCC (5 V), GND, and one ADC connection with load resistor
• Compact – 16.8 mm diameter round PCB

Specifications

• Compatible Sensors: MQ-3, MQ-4, MQ-6, MQ-7, MQ-8
• Operating Voltage: 5 V
• Diameter: 16.8 mm

Ideal For

• Gas detection and air quality monitoring
• Hazardous gas alarm prototypes
• Environmental sensing projects

Package Contents

• 1× Gas sensor breakout PCB (sensor not included)

Resources

• Hazardous Gas Monitor Tutorial
• Schematic (PDF)