/*
  Program by R. Jordan Kreindler
  Date: October 22, 2020
  LED Display after rotary encoder switch is pressed
*/

#define Switch 9
byte val = 2;

int delay1 = 75;
#define firstLED 2
#define lastLED  7

void setup() {
  for (int i = firstLED; i <= lastLED; i++) {
    pinMode(i, OUTPUT);
  }
}

void loop() {
  val = digitalRead(Switch);

  if ( val == 0) {
    for (int i = firstLED; i < lastLED; i++) {
      digitalWrite(i,  HIGH);
      delay(delay1);
      digitalWrite(i, LOW);
    }

    for (int i = lastLED; i >= firstLED; i-- ) {
      digitalWrite(i,  HIGH);
      delay(delay1);
      digitalWrite(i, LOW);
    }

  }
}