Sensitivity can be adjusted by varying the trimmer onboard.
Mq 2 gas sensor arduino.
The mq 2 sensor has 4 pins.
They are sensitive for a range of gasses and are used indoors at room temperature.
The mq 2 gas sensor.
There are lpg cylinders which are used as a fuel source for the gas stove.
The output is an analog signal and can be read with an analog input of the arduino.
The output can be an analog signal a0 that can be read with an analog input of the arduino or a digital output d0 that can be read with a digital input of the arduino.
Mq gas sensor type is the most popular gas sensor for hobbyist easy to get and of course very cheap.
Mq gas sensor type has many derived type for every certain gas.
Give your next arduino project a nose for gasses with the mq2 gas sensor module.
Guide for mq 2 gas smoke sensor with arduino.
Here s the list taken from arduino cc website.
This project uses the mq 2 sensor and an arduino to determine and detect different smoke intensities.
This guide shows how to build a smoke detector that beeps when it detects flammable gas or smoke.
The mq 2 gas sensor module is useful for gas leakage detecting in home and industry.
The mq 2 sensor is a versatile gas sensor capable of detecting a wide range of gases including.
Many a times disastrous accidents take place due to leakage of these cylinders in these situations we must administer proper care and safety.
The best detection time for the sensor is should be 24 hours.
Alcohol carbon monoxide hydrogen isobutene liquefied petroleum gas methane propane and smoke.
Keeping this in mind in today s post i have worked on mq 2 gas sensor fc 22 powered and interfaced with arduino uno.
The mq 2 smoke sensor is sensitive to smoke and to the following flammable gases.
For detailed information for the mq 2 sensor refer to the datasheet.
How to detect dangerous fumes and smoke.
The mq series of gas sensors use a small heater inside with an electro chemical sensor.
Gas sensor with give an voltage output that increases with concentration.
Breath checker or early fire detection system mq2 gas sensor module is a great choice.
You can get this sensor for several.
Pin wiring to arduino uno.
This smoke detector can be easily built onto a breadboard or a polka dot plate.
The signal output voltage from the gas sensor will increase decrease when the sensor detects concentration of gas.
The mq 2 smoke sensor is the one in the following figure.
This is a robust gas sensor suitable for sensing lpg smoke alcohol propane hydrogen methane and carbon monoxide concentrations in the air if you are planning on creating an indoor air quality monitoring system.
