SparkFun
Gas Sensor Breakout
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...
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
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
Find this product in
Brands
Gas Sensor Breakout Schematic
Schematic · 6.5 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 839.9 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
