MQ5 Analog Gas Sensor Brick(EF04029)
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.
Products Link
ELECFREAKS Octopus Smoke Sensor MQ-5 Brick
Characteristics
Standard 3-pin GVS port is easy to plug.
Specification
| Item | Parameter |
|---|---|
| SKU | EF04029 |
| Connections Type | Analog |
| Pins Definition | S-Sigal V-VCC G-GND |
| Working Voltage | 3V |
| Size | 38x27mm |
Outlook and Dimension
Quick to Start
Materials required and connections diagram
Connect to P1 port as the picture shows.
Take sensor:bit for example
Program as the picture shows
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.