Ks0040 keyestudio Analog Gas Sensor: Difference between revisions

From Keyestudio Wiki
Jump to navigation Jump to search
 
Line 18: Line 18:
<br>
<br>
==Connection Diagram ==
==Connection Diagram ==
<br>[[File:QQ图片20210715163302.png|700px|frameless|thumb]]<br>  
<br>[[File:QQ图片20210715163303.png|700px|frameless|thumb]]<br>  


<br>
<br>

Latest revision as of 16:42, 15 July 2021


Introduction

This analog gas sensor - MQ2 is used in gas leakage detecting equipment in consumer electronics and industrial markets.
This sensor is suitable for detecting LPG, I-butane, propane, methane, alcohol, Hydrogen and smoke. It has high sensitivity and quick response.
In addition, the sensitivity can be adjusted by rotating the potentiometer. 

thumb


Specification

  • Power Supply: 5V
  • Interface Type: Analog
  • Wide detecting scope
  • Quick response and High sensitivity
  • Simple drive circuit
  • Stable and long lifespan


Connection Diagram


thumb


Sample Code

///Arduino Sample Code
void setup()
{
  Serial.begin(9600); //Set serial baud rate to 9600 bps
}
void loop()
{
int val;
val=analogRead(0);//Read Gas value from analog 0
Serial.println(val,DEC);//Print the value to serial port
delay(100);
}



Result


thumb
Done wiring and powered up, upload well the code, then open the serial monitor and set the baud rate as 9600, you will see the analog value. When detecting the gas, the value will make a change.
thumb


Resources

  • Video

http://video.keyestudio.com/ks0040/

  • PDF and Code

https://fs.keyestudio.com/KS0040


Buy from