Digital Hourglass

Digital Hourglass

const int switchPin = 8;

unsigned long previousTime = 0;

int switchState = 0;

int prevSwitchState = 0;

int led = 2;

long interval = 6000;

void setup() {

  // set the LED pins as outputs

  for (int x = 2; x < 8; x++) {

    pinMode(x, OUTPUT);

  }

  // set the tilt switch pin as input

  pinMode(switchPin, INPUT);

}

void loop() {

  unsigned long currentTime = millis();

  if (currentTime - previousTime > interval) {

    previousTime = currentTime;

    digitalWrite(led, HIGH);

    led++;

    if (led == 7) {

    }

  }

  switchState = digitalRead(switchPin);

  if (switchState != prevSwitchState) {

    for (int x = 2; x < 8; x++) {

      digitalWrite(x, LOW);

    }

    led = 2;

    previousTime = currentTime;

  }

  prevSwitchState = switchState;

}