Control Fan And Light Using Mobile Bluetooth


char data=0;



void setup() {                



  pinMode(7, OUTPUT);

  pinMode(8, OUTPUT);  

pinMode(10, OUTPUT);  

pinMode(12, OUTPUT);  

  



   Serial.begin(9600);

 digitalWrite(7,HIGH);

 digitalWrite(8,HIGH);

  digitalWrite(10,HIGH);

   digitalWrite(12,HIGH);



 }



void loop() {



if(Serial.available())

{

  data=Serial.read();

  if(data=='a')

 digitalWrite(7,LOW);

 else if(data=='b')

  digitalWrite(7,HIGH);



  if(data=='c')

 digitalWrite(8,LOW);

 else if(data=='d')

  digitalWrite(8,HIGH);

  

  if(data=='e')

 digitalWrite(10,LOW);

 else if(data=='f')

  digitalWrite(10,HIGH);



  if(data=='g')

 digitalWrite(12,LOW);

 else if(data=='h')

  digitalWrite(12,HIGH);

 

}



}