Ks0042 keyestudio MQ-4 Gas Sensor: Difference between revisions
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==Introduction== | ==Introduction== | ||
MQ-4 | MQ-4 can be used in household and industrial-level gas leakage detection device to detect natural gas and methane. <br> | ||
It is featured with wide detection range, high sensitivity, fast response and recovery time, with excellent stability, long service life and simple drive circuit.<br> | |||
Applicable gas: natural gas, methane | Applicable gas: natural gas, methane <br> | ||
<br>[[File: | <br>[[File:Ks0042.jpg|500px|frameless|thumb]]<br> | ||
<br> | |||
==Specification== | ==Specification== | ||
*Detection Range: 300 ~ 10000ppm | *Detection Range: 300 ~ 10000ppm | ||
| Line 17: | Line 19: | ||
*Heating Power: ≤900mW | *Heating Power: ≤900mW | ||
*Heating Voltage: 5.0V±0.2V | *Heating Voltage: 5.0V±0.2V | ||
*Measuring Voltage: | *Measuring Voltage: 5V | ||
<br> | |||
===Working condition of MQ-4:=== | ===Working condition of MQ-4:=== | ||
*Environment Temperature: -20℃～+55℃ | *Environment Temperature: -20℃～+55℃ | ||
*Humidity: ≤95%RH | *Humidity: ≤95%RH | ||
*Environment Oxygen Content: 21% | *Environment Oxygen Content: 21% | ||
<br> | |||
===Storage condition of MQ-4:=== | ===Storage condition of MQ-4:=== | ||
*Temperature: -20℃～+70℃ | *Temperature: -20℃～+70℃ | ||
*Humidity: ≤70%RH | *Humidity: ≤70%RH | ||
<br> | |||
==Connection Diagram == | ==Connection Diagram == | ||
<br>[[File:Ks0042-2.png|700px|frameless|thumb]]<br> | |||
<br> | |||
==Sample Code == | ==Sample Code == | ||
<pre> | <pre> | ||
| Line 48: | Line 53: | ||
Serial.println(val,DEC);//Print the value to serial port | Serial.println(val,DEC);//Print the value to serial port | ||
delay(100); | delay(100); | ||
}</pre> | } | ||
</pre> | |||
<br>[[File:Ks0042-1.png|600px|frameless|thumb]]<br> | |||
<br> | |||
==Resources == | |||
* '''Video'''<br> | |||
http://video.keyestudio.com/ks0040/ | |||
* '''code'''<br> | |||
https://fs.keyestudio.com/KS0042 | |||
<br> | |||
==Buy from == | |||
*[https://www.keyestudio.com/free-shipping-keyestudio-mq-4-natural-gas-methane-sensor-detection-module-for-arduino-p0014.html '''Official Website'''] | |||
*[https://www.aliexpress.com/store/product/Free-sgipping-Keyestudio-MQ-4-natural-gas-methane-sensor-detection-module-for-arduino/1452162_32626342649.html?spm=2114.12010612.8148356.27.59aa74983nH3cH '''Shop on aliexpress'''] | |||
[[Category: Sensor]] | [[Category: Sensor]] | ||
Latest revision as of 15:02, 7 January 2021
Introduction
MQ-4 can be used in household and industrial-level gas leakage detection device to detect natural gas and methane.
It is featured with wide detection range, high sensitivity, fast response and recovery time, with excellent stability, long service life and simple drive circuit.
Applicable gas: natural gas, methane
Specification
- Detection Range: 300 ~ 10000ppm
- Characteristic Gas: 5000ppm methane
- Sensitivity: R in air/R in typical gas≥5
- Resistance of Sensitive Material: 1KΩ～20KΩ in 5000ppm methane
- Response Time: ≤10s
- Recovery Time: ≤30s
- Heating Resistance: 31Ω±3Ω
- Heating Current: ≤180mA
- Heating Power: ≤900mW
- Heating Voltage: 5.0V±0.2V
- Measuring Voltage: 5V
Working condition of MQ-4:
- Environment Temperature: -20℃～+55℃
- Humidity: ≤95%RH
- Environment Oxygen Content: 21%
Storage condition of MQ-4:
- Temperature: -20℃～+70℃
- Humidity: ≤70%RH
Connection Diagram
Sample Code
///Arduino Sample Code
void setup()
{
Serial.begin(9600); //Set serial baud rate at 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);
}
Resources
- Video
http://video.keyestudio.com/ks0040/
- code
https://fs.keyestudio.com/KS0042