View source for KS0451 Keyestudio MS1100 Formaldehyde Benzene VOC Gas Sensor


<br>[[File:Ks0451-1.png|500px|right|thumb|Keyestudio Formaldehyde - Toluene - Methane - Ethanol - Tobacco Gas Sensor]]<br>

<br>
== Overview ==
The keyestudio formaldehyde-toluene-methane-ethanol-tobacco gas sensor is particularly for detecting specific gas contents. It can detect the gas more than 0.1ppm.  <br>
It is suitable for detecting various organic volatile components such as formaldehyde, benzene, methane, xylene and ethanol in the air. <br>
The sensor has two pins A0 and D0.  <br>
The A0 pin represents the detection of other content. The larger the content, the larger the A0 analog value is.  <br>
The D0 pin represents whether the gas content exceeds the zero threshold. When it exceeds, D0 outputs a HIGH level; not exceed, D0 outputs LOW.  
We can adjust the zero threshold value by the potentiometer on the back. <br>
The sensor has an LED to indicate whether the gas content exceeds the set zero limit. <br>
The sensor comes with a positioning hole with a diameter of 3.2mm, easy for mounting on other devices. <br>
This sensor can be used with other microcontrollers, such as the Arduino microcontroller.
[[File:Ks0451-2.png|300px|right|thumb| Back view]]


<br>
== Specifications ==
* Operating voltage: DC 5V
* Operating current: 100mA
* Maximum power: 1W
* Operating temperature range: -25°C to 65°C
* Interface type: 4pin header with 2.54mm pitch
* Positioning hole diameter: 3.2mm
* Dimensions: 33mm*18mm*9mm
* Weight: 3.4g
* Environmental attributes: ROHS


<br>
== Wring Diagram ==    
<br>[[File:Ks0451-3.png|600px|frameless|thumb]]<br>


<br>
== Test Code == 
<pre>
#define Aout A0
#define Dout 2

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(Aout,INPUT);
pinMode(Dout,INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
int a=analogRead(Aout);
int b=digitalRead(Dout);
Serial.print("D0:");
Serial.print(b);
Serial.print("   A0:");
Serial.println(a);
delay(300);
}
</pre>


<br>
== Test Result ==
Done uploading the code, open the Arduino IDE and set the baud rate to 9600. The greater the measured gas concentration, the greater the A0 value is. <br>
When the detected gas exceeds the set zero limit, D0 is 1, the D1 LED on the sensor lights up; otherwise D0 is 0, and the D1 LED on the sensor is off. <br>
<br>[[File:Ks0451-4.png|700px|frameless|thumb]]<br>


<br>

==Resource==

*Click the link to download the Code and datasheet: <br>

https://fs.keyestudio.com/KS0451


<br>

==Get One Now==

*[ Get one now from keyestudio official website ]

*[ Buy from aliexpress store]



[[Category: Sensor]]