Industrial and Home Security System

1 // LPG PIN
2  //LPG AND SMOKE PIN DETECT ALARM
3
4  
5void setup()  
6{
7  
8  Serial.begin(9600); 
9  pinMode(13,OUTPUT);
10pinMode (12,OUTPUT);  //PIR OUTPUT SINGNAL
11pinMode (3, INPUT);  // PIR INPUT PIN
12int tempsense =  0;
13int rhsense = 0;
14int temp = 0;
15int rh = 0;
16 
17 tempsense = (analogRead(1));
18  rhsense = (analogRead(0));
19}
20
21void loop()
22{
23{
24goto LPG_ND_SMOKE;
25
26goto  TEMP_AND_HUMIDITY;
27             
28goto PIR;
29
30
31
32goto HighVoltage;
33
34}
35
36LPG_ND_SMOKE:
37{
38  const int analogInPin =2;
39  int ledPin = 7;
40  int sensorValue = 0; 
41  
42  sensorValue = analogRead(analogInPin);            
43  
44  if (sensorValue  >=550)
45  
46  {
47    digitalWrite(ledPin, HIGH);   
48  }
49  else if (sensorValue>=400)
50  
51  {
52  digitalWrite(ledPin, HIGH);  
53  }
54else
55
56digitalWrite(ledPin,  LOW);
57
58  
59  Serial.print("sensor = " );                       
60  Serial.println(sensorValue);     
61
62  delay(10);                     
63}
64
65PIR:
66{
67  int val=0;
68val  = digitalRead(8);
69digitalWrite(13,val);
70
71if (val == 1)
72{
73digitalWrite(13,LOW);
74}
75
76else
77{
78Serial.print("LOW  PIR" ); 
79}
80 
81}
82
83TEMP_AND_HUMIDITY:
84{
85int tempsense = 0;
86int  rhsense = 0;
87int temp = 0;
88int rh = 0;
89 
90 tempsense = (analogRead(1));
91  rhsense = (analogRead(0));
92 temp = (tempsense/50);
93 rh = ((30.855*(rhsense/204.6))-11.504);
94  
95 Serial.print("Temperature: ");
96 Serial.print(temp);
97 Serial.println("  C ");
98 
99 delay(100);
100 Serial.print("Humidity: ");
101 Serial.print(rh);
102  Serial.println("% "); 
103                                            
104 delay(1000);
105}
106
107HighVoltage:
108{
109int  max_volt = 255;
110int present_main_volt;
111float volt;
112present_main_volt=analogRead(5);
113volt=(5/  max_volt* present_main_volt);
114
115
116if (volt ==00)
117if(volt ==3.177)
118if(volt  ==3.50)
119if(volt==4.00)
120if(volt== 4.50)
121goto OFF;
122
123}
124
125OFF:
126{
127  digitalWrite(7,HIGH);
128  delay(1000);
129  digitalWrite(7,LOW);
130}
131  
132}