Mq3 Alcohol Gas Module
Rs. 76.00 Rs. 92.00
- Brand: https://www.hwsensor.com/
- Product Code: SEN-GAS
- SKU - SE-2308
- Availability: In Stock
- Price in reward points: 1
- For Bulk Order
9962060070
Quick support on WhatsApp (+919962060070) only between morning 11am-4pm, no call will be answered
The alcohol gas sensor detects the attention of alcohol fuel inside the air and outputs its reading as an analog voltage.
The awareness sensing variety of zero.04 mg/L to four mg/L is appropriate for breathalyzers.
The sensor can operate at temperatures from -10 to 50°C and consumes much less than a hundred and fifty mA at 5 V.
The MQ3 GAS sensor has a very hight sensitivity to Alcohol fuel.
The touchy material of MQ3 Sensor is SnO2, which has lower conductivity in easy air.
When the target alcohol gas exist, the sensor’s conductivity is higher alongside with the gas awareness rising.
MQ3 GAS sensor has high sensitivity to Alcohol, and correct resistance to disturb of fuel, smoke and vapour.
The sensor can be used to stumble on alcohol with unique attention, it's miles with low fee and suitable for one-of-a-kind application.
| SPECIFICATIONS | |
| Power requirements | 5 VDC @ ~165 mA (heater on) / ~60 mA (heater off) |
| Current Consumption | 150mA |
| DO output | TTL digital 0 and 1 ( 0.1 and 5V) |
| AO output | 0.1- 0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V |
| Detecting Concentration | 0.05-10mg/L Alcohol |
| Interface | 1 TTL compatible input (HSW), 1 TTL compatible output (ALR) |
| Heater consumption | less than 750mW |
| Operating temperature | 14 to 122 °F (-10 to 50°C) |
| Load resistance | 200kΩ |
| Sensitivity S | Rs(in air)/Rs(0.4mg/L Alcohol)≥5 |
| Sensing Resistance Rs | 2KΩ-20KΩ(in 0.4mg/l alcohol) |
OVERVIEW:
-High sensitivity to alcohol, gasoline, Smoke and small sensitivity to Benzine..
-Fast response and High sensitivity.
-Stable and long life.
-Simple drive circuit.
PACKAGE INCLUDES:
1 PCS x Mq 3 Alcohol Gas Module
https://www.hwsensor.com/
//SOURCE CODE TAKEN FROM BELOW LINK
//https://create.arduino.cc/projecthub/yashikibrahim/alcohol-detection-sensor-dc32cd
/* MQ-3 Alcohol Sensor Circuit with Arduino */
/*SHUBHAM GUPTA - EMBEDDED ENGINEER*/
const int AOUTpin=A0;//the AOUT pin of the alcohol sensor goes into analog pin A0 of the arduino
const int ledPin=13;//the anode of the LED connects to digital pin D13 of the arduino
int i,alco_high,alco_low,mapped,data[200];
void setup() {
Serial.begin(115200);//sets the baud rate
pinMode(AOUTpin, INPUT);//sets the pin as an input to the arduino
for(i=2;i<=5;i++)
{
pinMode(i,OUTPUT);//sets the pin as an output of the arduino
}
}
void loop()
{
alco_high=0; // initially alcohol level is zero
alco_low = 1023; // low threshold is 1023
for(i=200; i>0; i--){
data[i] = data[i-1]; // decrement of data
if(data[i]>alco_high)
alco_high=data[i];
if(data[i]<alco_low)
alco_low=data[i];
}
data[0]= analogRead(AOUTpin);//reads the analaog value from the alcohol sensor's AOUT pin
mapped=map(data[0],0,1023,0,600);
Serial.print("Alcohol value: ");
Serial.println(mapped);//prints the alcohol value
delay(100);
if((alco_high-alco_low)>150){
if(data[0] > (alco_high-.95*(alco_high-alco_low)))//this is true if the read is greater than 95% of the span
digitalWrite(2, HIGH);
else
digitalWrite(2,LOW);
if(data[0] > (alco_high-.9*(alco_high-alco_low)))
digitalWrite(3, HIGH);
else
digitalWrite(3,LOW);
if(data[0] > (alco_high-.8*(alco_high-alco_low)))
digitalWrite(4, HIGH);
else
digitalWrite(4,LOW);
if(data[0] > (alco_high-.7*(alco_high-alco_low)))
digitalWrite(5, HIGH);
else
digitalWrite(5,LOW);
}
else
{
for(i=2;i<=5;i++)
digitalWrite(i,0);
}}
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