38. MQ5 Analog Gas Sensor Brick(EF04029)#

38.1. Introduction#

MQ-5 Gas sensor has a good sense to liquefied gas, natural gas and coal gas that are widely used in cities, but it doesn’t work on ethanol or smoke.

../../_images/04029_01.png

38.2. Products Link#

ELECFREAKS Octopus Smoke Sensor MQ-5 Brick

38.3. Characteristics#

Standard 3-pin GVS port is easy to plug.

38.4. Specification#

Item	Parameter
SKU	EF04029
Connections Type	Analog
Pins Definition	S-Sigal V-VCC G-GND
Working Voltage	3V
Size	38x27mm

38.5. Outlook and Dimension#

../../_images/04029_02.png

38.6. Quick to Start#

Materials required and connections diagram#

Connect to P1 port as the picture shows.

Take sensor:bit for example

../../_images/04029_03.png

Program as the picture shows#

../../_images/04029_04.png

Reference#

Link：https://makecode.microbit.org/_KJVXj9Co2UXU

You can also download it directly below:

Result#

Preheat it for 3 minutes after connections, detect the gas by approaching the probes to the gas while the returned value is almost stable. With the change of the Carbon Monoxide’s concentration, the returned value gets bigger with the growing of it.

ELECFREAKS WIKI

MQ5 Analog Gas Sensor Brick(EF04029)

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