// Mode selection switch

// Note : Just to see connecton otherwise code is made intentionally wrong below Code is PERFECT   https://forum.arduino.cc/t/n00b-mode-select-button-help/96200/4



int counter = 0; // set counter at 0 to start
int switchPin = 3; // define button pin
//define LED Pins
int LEDB = 4;
int LEDW = 5;
int LEDR = 6;
int previous = LOW;

void setup()
{
  pinMode(switchPin, INPUT);
  pinMode(LEDB, OUTPUT);
  pinMode(LEDW, OUTPUT);
  pinMode(LEDR, OUTPUT);
}

void loop() {
  //Handle input
  int switchVal = digitalRead(switchPin);
  if(switchVal == HIGH && previous == LOW)
  {
    delay(200);  
    counter ++;
    //Reset count if over max mode number
    if(counter == 4)  // if(counter == 5)
    {
      counter = 0;
    }
  }
  else
    //Change mode
    switch (counter) {
    case 1:
      digitalWrite(LEDB, HIGH);   // set the LED on
      digitalWrite(LEDW, LOW);    // set the LED off
      digitalWrite(LEDR, LOW);    // set the LED off
      break;
    case 2:
      digitalWrite(LEDB, LOW);   // set the LED on
      digitalWrite(LEDW, HIGH);    // set the LED off
      delay(50);              // wait for half a second
      digitalWrite(LEDR, LOW);    // set the LED off      
      break;      
    case 3:
      digitalWrite(LEDB, LOW);   // set the LED on
      digitalWrite(LEDW, LOW);    // set the LED off
      digitalWrite(LEDR, HIGH);    // set the LED off      
      break;       

      }
}