WIFI CONTROLLED FAN AND LIGHT

CIRCUIT PROGRAM //#include <EEPROM.h> #define TRIAC1 9  #define TRIAC2 A2  #define zerocrossingpin A5  unsigned short int ZERO,triggertime=20,fan=0; char uart_data;//SERIAL COMMUNICATION void setup()  {  Serial.begin(115200);  delay(100);messagereadinit();  triacinit();  pinMode(zerocrossingpin,INPUT_PULLUP); digitalWrite(TRIAC1, HIGH);delay(1000);digitalWrite(TRIAC1, LOW); //triggertime=EEPROM.read(10);    } void loop()  { if(triggertime>0 && triggertime<9 && fan==1) {   waitfornextzerocrossing (); delay(triggertime);    digitalWrite(TRIAC1, HIGH); delayMicroseconds(200); digitalWrite(TRIAC1 , LOW);             } else if(triggertime==0 && fan==1){digitalWrite(TRIAC1, HIGH);wifi();wifi();wifi();wifi();} else if(triggertime>10 || fan==1 )digitalWrite(TRIAC1, LOW);  wifi(); if(triggertime<5){wifi();wifi();} } void triacinit(void) { pinMode(TRIAC1, OUTPUT);pinMode(TRIAC2, OUTPUT); digitalWrite(TRIAC1 , LOW);digitalWrite(TRIAC2, LOW);   } void wifi(void) { if(Serial.available()>0) { uart_data=Serial.read(); if(uart_data==’:’) {  while(!(Serial.available()>0)); uart_data=Serial.read(); if(uart_data==’+’ && fan==1) {  fancontrol();    }  else if(uart_data==’A’) {  digitalWrite(TRIAC2, HIGH); // Serial.println(“light ON”);  }   else if(uart_data==’a’) {  digitalWrite(TRIAC2, LOW);//   Serial.println(“light OFF”);  }   else if(uart_data==’B’) {  fan=1;// Serial.println(“FAN ON”);  }   else if(uart_data==’b’) {  fan=0;//  Serial.println(“FAN OFF”);  }   } }   } void waitfornextzerocrossing (void) {  do    {       ZERO =digitalRead(zerocrossingpin);     }    while(!ZERO); //wait until zero reaches–HIGH PULSE } void fancontrol(void) {    while(!(Serial.available()>0));//skips 1st zero uart_data=Serial.read(); while(!(Serial.available()>0));//skips 2nd zero uart_data=Serial.read(); while(!(Serial.available()>0));//msb of speed uart_data=Serial.read(); triggertime=100*(uart_data-0x30); while(!(Serial.available()>0));//middle byte of speed uart_data=Serial.read(); triggertime=triggertime + 10*(uart_data-0x30); while(!(Serial.available()>0));//lsb byte of speed uart_data=Serial.read(); triggertime=triggertime + (uart_data-0x30);   triggertime=triggertime*10/255;          if(triggertime==1)     {     triggertime=8;   //  EEPROM.write(10,triggertime);     }     else if(triggertime==2)     {       triggertime=7;     //  EEPROM.write(10,triggertime);     }     else if(triggertime==3 || triggertime==4)     {     triggertime=5;     // EEPROM.write(10,triggertime);     }     else if(triggertime==5 || triggertime==6)     {      triggertime=4;    // EEPROM.write(10,triggertime);     }     else if(triggertime==7 || triggertime==8)     {      triggertime=2;      // EEPROM.write(10,triggertime);     }      else if(triggertime>8)     {      triggertime=0;       //EEPROM.write(10,triggertime);     }       else if(triggertime==0)     {      triggertime=30;       //EEPROM.write(10,triggertime);     } //Serial.print(“triggertime=”);Serial.println(triggertime); } void messagereadinit(void) { Serial.print(“AT+CWMODE=3”);//TEXT MODE Serial.write(0xd);//ENTER Serial.write(0xa);//NEW LINE delay(500); Serial.print(“AT+CIPMUX=1”);//TEXT MODE Serial.write(0xd);//ENTER Serial.write(0xa);//NEW LINE delay(500); Serial.print(“AT+CIPSERVER=1,23”);//TEXT MODE Serial.write(0xd);//ENTER Serial.write(0xa);//NEW LINE delay(500); }