Arduino Based Alcohol Detector

1//Program to 
2
3
4#include <Servo.h>
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6
7#include <LiquidCrystal.h>
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9
10LiquidCrystal   lcd(2, 3, 4, 5, 6, 7);
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12int ledPin = 12;
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14int sensorPin = A1;
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16
17Servo   myservo;
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19
20int pos = 0;
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22
23int value;
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25
26void setup()
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28{
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30
31Serial.begin(9600);
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33lcd.begin(16,2);
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35
36pinMode(ledPin,OUTPUT);
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38
39   myservo.attach(10);
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41}
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43
44void loop() 
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46{
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48
49int Value   = analogRead(sensorPin);
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51value = analogRead(A1);
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53
54
55lcd.print("Alcohollevel:");
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57lcd.println(value);
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59Serial.println(value);
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61
62if   (Value > 500) 
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64{
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66    digitalWrite(ledPin,HIGH);
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68    
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70      lcd.setCursor(0, 2);
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72     lcd.print("Alert....!!!");
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74    Serial.print   ("Alert");
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76    
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78      myservo.write(100); 
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80    
81
82  }   
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84  else {
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86    digitalWrite(ledPin,LOW); 
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88    
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90      lcd.setCursor(0,   2);
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92      lcd.print("Normal... :)");
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94    Serial.print("Normal");
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96     
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98     myservo.write(0); 
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100  }
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102
103  
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105
106
107delay(1000);
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109lcd.clear();
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111
112}