// INDICATE PANEL
// Address 32
//                             76543210
static uint8_t indicate_32 = 0b01011100;
// Address 33
//                             7XX43210  
static uint8_t indicate_33 = 0b00000100;

bool switch_1 = true, switch_2 = true, switch_4_5 = true;
byte switch_3 = 3;  // 2,3,4
bool flag_change_junc = false;  



// ----  Smart track algorithm
  if (flag_change_junc) {
  
    // Relays
    if (switch_1) {
      digitalWrite(RELAY_LINE1, HIGH); 
      digitalWrite(RELAY_LINE2, LOW);
    } 
    else {
      digitalWrite(RELAY_LINE1, LOW); 
      digitalWrite(RELAY_LINE2, HIGH);
    }

    if (!switch_2 && switch_4_5) digitalWrite(RELAY_TRANSITION, HIGH); 
    else digitalWrite(RELAY_TRANSITION, LOW); 

    // Indicate Panel
    if (switch_1) {
      bitClear (indicate_32, 7);   // Line 1
      bitSet (indicate_32, 6);     // Line 2
    }
    else {
      bitSet (indicate_32, 7);     // Line 1
      bitClear (indicate_32, 6);   // Line 2
    }
    
    if (switch_2) { 
      bitSet (indicate_32, 2);     // Underline
      bitClear (indicate_33, 4);   // Transition 1
      if (switch_3 == 2) {
        bitClear (indicate_32, 1); // Line 4
        bitClear (indicate_32, 3); // Line 5
        bitSet (indicate_32, 0);   // Line 6
        bitClear (indicate_33, 2); // Line 7
      }
      if (switch_3 == 3) {
        bitClear (indicate_32, 1); // Line 4
        bitSet (indicate_32, 3);   // Line 5
        bitClear (indicate_32, 0); // Line 6
        bitSet (indicate_33, 2);   // Line 7
      }
      if (switch_3 == 4) {
        bitSet (indicate_32, 1);   // Line 4
        bitClear (indicate_32, 3); // Line 5
        bitClear (indicate_32, 0); // Line 6
        bitSet (indicate_33, 2);   // Line 7
      }
    }
    else {
      bitClear (indicate_32, 2);   // Underline
      bitSet (indicate_33, 4);     // Transition 1      
      bitClear (indicate_32, 1);   // Line 4
      bitClear (indicate_32, 3);   // Line 5
      bitClear (indicate_32, 0);   // Line 6
      bitClear (indicate_33, 2);   // Line 7      
    }
   
    if (switch_4_5) {
       bitSet (indicate_32, 4);    // Line 3
       bitClear (indicate_33, 1);  // Yellow 
    }
    else {
       bitClear (indicate_32, 4);  // Line 3
       bitSet (indicate_33, 1);    // Yellow 
    }
  
    if (switch_4_5 && !switch_2) {
      bitSet (indicate_32, 5);    // Transition 2      
      bitSet (indicate_33, 0);    // Transition 3
      bitSet (indicate_33, 7);    // Transition 4
      bitSet (indicate_33, 3);    // TP Line      
    }
    else {
      bitClear (indicate_32, 5);  // Transition 2      
      bitClear (indicate_33, 0);  // Transition 3
      if (switch_4_5) {
        bitClear (indicate_33, 3);  // TP Line
        bitClear (indicate_33, 7);  // Transition 4
      }
      else {
        bitSet (indicate_33, 3);    // TP Line
        bitSet (indicate_33, 7);    // Transition 4
      }
    }

    dataToI2C = indicate_32; 
    addressI2C = 32; 
    sendDataViaI2C();
    delay(150);
    dataToI2C = indicate_33; 
    addressI2C = 33; 
    sendDataViaI2C();     
    flag_change_junc = false;
  }