Sparkfun Carrier for MQ Gas Sensors (Bare PCB Only)

This carrier board is designed to work with any of the MQ-series petrol sensors , simplifying the interface from 6 to 4 pins that are broken out with a 0.1" spacing, making the board compatible with 0.1" headers and standard breadboards and perfboards.

Discontinued  

Our supplier is out of stock

Our Code: SKU-002709

Supplier Link: [Pololu MPN:1639]


Description

Sparkfun MQ gas sensor carrier, top view

Sparkfun MQ gas sensor carrier, bottom view

Overview

This breakout board is designed to work with any of the MQ-series petrol sensor, simplifying the interface from 6 to 4 pins that are broken out with a 0.1" spacing, making the board compatible with 0.1" headers and standard breadboards and perfboards. The board has a diameter of 16.8 mm, which matches the diameter of the small (plastic) petrol sensor packages, providing a more convenient, compact connection within the bounds of the sensor itself.

The two rows of 1 x 2 pins are spaced 0.5" apart allowing the break out board to work with standard breadboards.

Note that we also offer an alternate petrol sensor breakout board that has mounting holes, pads designated for the required sensitivity resistor RL, and a convenient three-pin interface.

Connections

Connect H1 and A1 to 5 V, GND to ground, and B1 to an ADC input of your microcontroller. A required (but not included) sensitivity-setting resistor, RL, should be connected between B1 and GND. The resistance of RL should be calculated using the datasheet for your particular petrol sensor.

The MQ petrol sensors have light to no polarity, so the petrol sensor will work with the board any way it fits into the 6 pins.

Sparkfun MQ gas sensor carrier with gas sensor (sold separately)

Note: This product consists of the PCB by itself; it does not include a petrol sensor, sensitivity resistor, header pins, or any additional hardware.


Specifications

Dimensions

Size: 0.66" diameter