ALCOHOL DETECTOR USING ARDUINO

ALCOHOL DETECTOR USING ARDUINO

Nowadays drinking and driving is the most common threat to their as well as others’ life. We cannot stop people from drinking but we can avoid these accidents by checking the person of drinking also we can put these types of small devices in vehicles to assure that no drink and drive can further take place. It is a simple alcohol indicator that can be used in small devices or for the demonstration of simple small projects for an Alcohol detector using Arduino.

Components

Arduino
Red led
MQ-3 Sensor
Breadboard
Jumper wires
220 ohm resistor
Buzzer

Components	Hexkart	Flipkart
Arduino	Buy Now	Buy Now
MQ-3 Sensor	Buy Now	Buy Now
Breadboard	Buy Now	Buy Now
Buzzer	Buy Now	Buy Now

Circuit Diagram

Arduino Code

//put this code for LED in the ide of arduino from this line
int LED = 9;
int ALCOHOL_sensor = 3;// MQ-3 SENSOR
int ALCOHOL_detected;
void setup()
{
Serial.begin(9600);
pinMode(LED, OUTPUT);
pinMode(ALCOHOL_sensor, INPUT);
}
void loop()
{
ALCOHOL_detected = digitalRead(ALCOHOL_sensor);
Serial.println(ALCOHOL_detected);
if (ALCOHOL_detected == 1)
{
Serial.println("ALCOHOL detected...");
digitalWrite(LED, HIGH);
}
else
{
Serial.println("No ALCOHOL detected ");
digitalWrite(LED, LOW);
}
}
//For buzzer put this code in Arduino IDE
int LED = 9;
int BUZZER = 10;
int ALCOHOL_sensor = 3;// MQ-3 SENSOR
int ALCOHOL_detected;
void setup()
{
Serial.begin(9600);
pinMode(LED, OUTPUT);
pinMode(BUZZER, OUTPUT);
pinMode(ALCOHOL_sensor, INPUT);
}
void loop()
{
ALCOHOL_detected = digitalRead(ALCOHOL_sensor);
Serial.println(ALCOHOL_detected);
if (ALCOHOL_detected == 1)
{
Serial.println("ALCOHOL detected...");
digitalWrite(LED, HIGH);
digitalWrite(BUZZER, HIGH);
}
else
{
Serial.println("No ALCOHOL detected.");
digitalWrite(LED, LOW);
digitalWrite(BUZZER, LOW);
}
}