unsigned short Period, Pulse, value;

void interrupt ()
{
 static unsigned short count = 0;
 
 if(T0IF_bit)
  {
    count++;
    if(count < Period){
     if (count < Pulse)
      GP0_bit = 1;
     else
      GP0_bit = 0;
     }
    else {
      count = 0;
      GP0_bit = 1;
     }
    T0IF_bit = 0;
  }
}
void main() {
     ANSEL  = 0x00;
     ADCON0 = 0x00;
 
     // GP1 (AN1) - midle pin resistor 10 kOm
     TRISIO1_bit = 1;           // GP1 input
     // set ADC
     ADCS1_bit = 1; 	        // internal oscillator RC for ADC
     ADCS0_bit = 1;
     ADFM_bit  = 0;      	// Left adj
     CHS0_bit = 1;              // AN1 chanel select
     ANS1_bit  = 1;		// AN1 analog input
     ADON_bit = 1;              // on ADC
     // GP0 connect LED
     TRISIO0_bit = 0;
     GP0_bit = 0;
     // set TMR0
     OPTION_REG = 0x88;
     // on interrupt
     T0IE_bit = 1;
     GIE_bit = 1;
     
     Period = 64;
     Pulse = 1;
     
     for(;;){
       GO_DONE_bit = 1;                     // Start ADC
       while (GO_DONE_bit) continue;
       value = ADRESH>>2;
       Pulse = value;
     }
}

// LED RGB module connections
sbit RED1 at RA0_bit;
sbit GREEN1 at RA1_bit;
sbit BLUE1 at RA2_bit;
sbit RED1_Direction at TRISA0_bit;
sbit GREEN1_Direction at TRISA1_bit;
sbit BLUE1_Direction at TRISA2_bit;

int i = 0 ,PWN_COUNTER = 256;

void PWM_FADE_0_TO_1(void);
void PWM_FADE_1_TO_0(void);
void Delay(int num);

void main(void)
{

 TRISA = 0;
 PORTA = 0;


 while(1){
          PWM_FADE_0_TO_1();
          PWM_FADE_1_TO_0();
          }
}

void PWM_FADE_0_TO_1(void)        // Duty cycle -  0%  to  100%
{
 for (i = 0; i < PWN_COUNTER; i++)
 {
  RED1 = 0;

  Delay(PWN_COUNTER - i);
  RED1 = 1;

  Delay(i);
  }
 for (i = 0; i < PWN_COUNTER; i++)
 {
  GREEN1 = 0;

  Delay(PWN_COUNTER - i);
  GREEN1 = 1;

  Delay(i);
  }
 for (i = 0; i < PWN_COUNTER; i++)
 {
  BLUE1 = 0;

  Delay(PWN_COUNTER - i);
  BLUE1 = 1;

  Delay(i);
  }
}

void PWM_FADE_1_TO_0(void)         // Duty cycle -  100% to 0%
{
 for (i = 0; i < PWN_COUNTER; i++)
 {
  RED1 = 1;

  Delay(PWN_COUNTER - i);
  RED1 = 0;

  Delay(i);
  }
 for (i = 0; i < PWN_COUNTER; i++)
 {
  GREEN1 = 1;

  Delay(PWN_COUNTER - i);
  GREEN1 = 0;

  Delay(i);
  }
 for (i = 0; i < PWN_COUNTER; i++)
 {
  BLUE1 = 1;

  Delay(PWN_COUNTER - i);
  BLUE1 = 0;

  Delay(i);
  }
}

void Delay(int num)
{
 while(num>0)
 num--;
}

#define On button(&porta,1,10,0)
#define Off button(&porta,0,10,0)
unsigned short state;

void Start(){
 state=1;
 portb=0x01;
 delay_ms(10000); // задержка включения наждака
 portb=0x81;
}
void Stop(){
 state=0;
 portb=0x01;
 delay_ms(5000); // задержка отключения вытяжки
 portb=0;
}
void Init(){
 CMCON=7;
 OPTION_REG = 0x87;
 INTCON.T0IE=1;
 INTCON.GIE=1;
 trisa=0xe7;
 trisb=0;
 portb=0;
 state=0;
}// Init

void main(){
 init();
 while(1){
  if (Off){
   if (state!=0){
    Stop();
   }
  }
  else{
   if (On){
    Start();
   }
  }
 }
}

void Start(){
 state=1;
 delay=0;
 portb=0x01;
 do{
  if (Off){
   return;
  }
  delay_ms(10);
  delay++;
 } while(delay<1000);
 portb=0x81;
}