Connections

Connect VCC to 5 V, GND to ground, and OUT to an analog-to-digital converter (ADC). The board has two pairs through-hole pins for the required (but not included) sensitivity-selecting resistor RL, providing two mounting options-horizontal or vertical-between GND and OUT as shown in the pictures above. The resistance of RL should be calculated using the datasheet for your particular gas sensor.

The MQ gas sensors have light to no polarity, so the gas sensor will work with the board all four ways it fits into the 6 pins (there are two possible orientations on each side of the board).

The picture to the right above shows a board with a 3 x 1 0.1" right-angle male header soldered to it, which allows a standard servo cable to be used to connect the board to your project.

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

Dimensions

  • Size: 0.7 x 0.95"

This breakout board is designed to work with any of the MQ-series gas sensors, simplifying the interface from 6 to 3 pins-ground, +5V VCC, and an analog voltage output-that are broken out with a 0.1" spacing, making the board compatible with 0.1" headers and standard breadboards and perfboards. This board has two mounting holes and provides convenient pads for mounting the gas sensor's required sensitivity-setting resistor (referred to as RL in the sensor datasheet). All of the board's traces are on the same side of the PCB, making it easy to see how the pads are connected.

The two mounting holes are intended to be used with #2 screws (not included).

Note that we also offer an alternate gas sensor breakout board that is more compact, with a diameter equal to that of the smaller gas sensor and the broken-out pins beneath the sensor.

Pololu MQ Gas Sensor Carrier

  • Product Code: TS-056-MQ0
  • Availability: 36 In stock
  • $1.13



Related Products

Pololu Flammable Gas & Smoke Sensor MQ-2

Pololu Flammable Gas & Smoke Sensor MQ-2

This flammable gas and smoke sensor detects the concentrations of combustible gas in the air and oup..

$3.95

Pololu Alcohol Gas Sensor MQ-3

Pololu Alcohol Gas Sensor MQ-3

This alcohol gas sensor detects the concentration of alcohol gas in the air and ouputs its reading a..

$4.49

Pololu Methane Gas Sensor MQ-4

Pololu Methane Gas Sensor MQ-4

This methane gas sensor detects the concentration of methane gas in the air and ouputs its reading a..

$4.95

Pololu LPG / Isobutane / Propane Gas Sensor MQ-6

Pololu LPG / Isobutane / Propane Gas Sensor MQ-6

This propane gas sensor detects the concentrations of LPG, isobutane, and propane in the air and oup..

$4.95

Pololu Carbon Monoxide Gas Sensor MQ-7

Pololu Carbon Monoxide Gas Sensor MQ-7

This Carbon Monoxide (CO) gas sensor detects the concentrations of CO in the air and ouputs its read..

$6.95

Pololu Carbon Monoxide & Flammable Gas Sensor MQ-9

Pololu Carbon Monoxide & Flammable Gas Sensor MQ-9

This Carbon Monoxide (CO) and flammable gas sensor detects the concentrations of CO and combustible ..

$5.95