Bluetooth Voice Controlled Appliances with 'OK Google'

1 String voice;
2
3#define FAN 10
4#define TUBELIGHT 9
5#define  BULB 8
6
7void setup() 
8{                                            // put  your setup code here, to run once:
9  Serial.begin(9600);
10  pinMode(FAN, OUTPUT);
11  pinMode(TUBELIGHT, OUTPUT);
12  pinMode(BULB, OUTPUT);
13   analogWrite(TUBELIGHT,255);                    // Since LED must be off in the beginning
14   analogWrite(FAN,255);
15   digitalWrite(BULB,HIGH);
16}
17
18void loop() {
19 
20  while (Serial.available())   //Check if there is an available byte to read
21  {                            
22  delay(10);                   //Delay added to make thing stable
23  char c =  Serial.read();      //Conduct a serial read
24  if (c == '#') {break;}       //Exit  the loop when the # is detected after the word
25  voice += c;                  //Shorthand  for voice = voice + c
26  } 
27
28  if (voice.length() > 0) {
29    Serial.println(voice);
30  //----------Control Multiple Pins/ LEDs----------// 
31
32       if(voice ==  "tubelight")//                             
33     {
34     analogWrite(TUBELIGHT,0);  
35     analogWrite(FAN,255);
36     digitalWrite(BULB,HIGH);
37     }  
38  else if(voice == "green")//                              
39     {
40    analogWrite(TUBELIGHT,255);
41    analogWrite(FAN,255);
42    digitalWrite(BULB,HIGH);
43     }
44  else if(voice  == "fan")//                              
45     {
46    analogWrite(TUBELIGHT,255);
47    analogWrite(FAN,0);
48    digitalWrite(BULB,HIGH);
49     }
50
51      else  if(voice == "bulb")//                                
52     {
53    analogWrite(TUBELIGHT,0);
54    analogWrite(FAN,255);
55    digitalWrite(BULB,LOW);
56     }
57
58       else  if(voice == "go")//                                
59     {
60    digitalWrite(BULB,HIGH);
61     }
62  else if(voice == "lights")//                               
63     {
64    analogWrite(TUBELIGHT,0);
65    analogWrite(FAN,0);
66    digitalWrite(BULB,LOW);
67     }
68   else if(voice == "good night")//                         
69     {
70    analogWrite(TUBELIGHT,255);
71    analogWrite(FAN,255);
72    digitalWrite(BULB,HIGH);
73     }
74  
75voice="";                                                       //Reset  the variable after initiating
76  }}
77
78