const int VOL_PIN0 = A0;
const int VOL_PIN1 = A1;
const int VOL_PIN2 = A2;



void setup()
{
  
  attachInterrupt(0, zero_crosss_int, RISING);  // Choose the zero cross interrupt to suit board model
  
 
 
  pinMode(3, OUTPUT);      // GATE control
	pinMode(4, OUTPUT);      // OUT GATE control

}
//the interrupt function must take no parameters and return nothing
void zero_crosss_int()  //function to be fired at the zero crossing
{
  
int value;
    float delay0;  // Wait after zero cross trigger   

    value = analogRead( VOL_PIN0 );

    delay0 = value ;



int value2;
    float ontime1;    //  On time 
  
    value2 = analogRead( VOL_PIN1 );

    ontime1 = map(value2, 0, 1023, 0, 100);

 
 
 int value3;
    float ontime2;    //  On time discharging
  
    value3 = analogRead( VOL_PIN2 );

    ontime2 = map(value3, 0, 1023, 0, 2000);



digitalWrite(4,HIGH);  //set  In GATE  to high  
delayMicroseconds(ontime1);         //  On time 
digitalWrite(4,LOW); //turn off  gate
delayMicroseconds(delay0);    // Wait 
digitalWrite(3,HIGH);  //set OUT GATE to high
delayMicroseconds(ontime2);         //  On time 
digitalWrite(3,LOW); //turn off  gate
 
  
  }

void loop()  {
  

  
   }