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Testing a MQ-8 Gas Sensor interfacing with arduino uno

Category: Arduino Compatible Kits Tags: Arduino Uno, MQ-8 Gas Sensor, Testing

KIT INCLUDES:

Mq8 gas sensor – 1
Arduino uno with USB Cable -1
Jumper wires(male to female)-40 pieces
9v Battery with DC jack(if you want to use externally after uploading the code) – 1

HARDWARE REQUIRED

Mq8 gas sensor – 1
Arduino UNO with USB Cable -1
Jumper wires(male to female)-40 pieces
9v Battery with DC jack(if you want to use externally after uploading the code) – 1

SOFTWARE REQUIRED

Arduino IDE 1.8.5 (programmable platform for Arduino)

Click To Download:https://www.arduino.cc/en/Main/Software

SPECIFICATIONS

MQ-8 GAS SENSOR MODULE

The MQ-8 Gas Sensor module is useful for gas leakage detection. They are used in gas leakage detecting equipment’s in-home and industry, are suitable for detecting Hydrogen.Due to its high sensitivity and response time, measurements can be taken as soon as possible. Try and avoid alcohol, LPG, cooking fumes as the sensor has slight sensitivity to these substances and this may affect the results

High sensitivity to Hydrogen
Small sensitivity to alcohol, LPG, cooking fumes
Fast response.
Stable and long life
Simple drive circuit

PIN DESCRIPTION

MQ-8 GAS SENSOR MODULE

CIRCUIT CONNECTION

Gas Sensor	Arduino uno
VCC	5v
GND	GND
AO	Analog pin 0
DO	Not connected

CODE

void setup()

{

Serial.begin(9600);

}

void loop()

{

float sensorVoltage;

float sensorValue;

sensorValue = analogRead(A0);

sensorVoltage = sensorValue/1024*5.0;

Serial.print(“sensor voltage = “);

Serial.print(sensorVoltage);

Serial.println(” V”);

delay(2000);

}

WORKING

After uploading the code, you will see the serial monitor reading. It took about 3 minutes for the readings to stabilize. Remember it consists of a heating element, so you effectively have to let the sensor ‘heat up’.

Battery operated	Yes , 1 nos 9V battery included

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