/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.

  Most Arduinos have an on-board LED you can control. On the Uno and
  Leonardo, it is attached to digital pin 13. If you're unsure what
  pin the on-board LED is connected to on your Arduino model, check
  the documentation at http://www.arduino.cc

  This example code is in the public domain.

  modified 8 May 2014
  by Scott Fitzgerald
 */

int pi[21] = {3,1,4,1,5,9,2,6,5,3,5,8,9,7,9,3,2,3,8,4,6};

void printSegment(int number) {
	digitalWrite(number, LOW);
}

void printDigit(int number) {
	if (number == 0) {
		printSegment(3);
		printSegment(4);
		printSegment(5);
		printSegment(7);
		printSegment(8);
		printSegment(9);
	}
	if (number == 1) {
		printSegment(3);
		printSegment(9);
	}
	if (number == 2) {
		printSegment(4);
		printSegment(5);
		printSegment(6);
		printSegment(9);
		printSegment(8);
	}
	if (number == 3) {
		printSegment(4);
		printSegment(3);
		printSegment(6);
		printSegment(9);
		printSegment(8);
	}
	if (number == 4) {
		printSegment(7);
		printSegment(6);
		printSegment(9);
		printSegment(3);
	}
	if (number == 5) {
		printSegment(8);
		printSegment(7);
		printSegment(6);
		printSegment(3);
		printSegment(4);
	}
	if (number == 6) {
		printSegment(8);
		printSegment(7);
		printSegment(6);
		printSegment(3);
		printSegment(4);
		printSegment(5);
	}
	if (number == 7) {
		printSegment(3);
		printSegment(9);
		printSegment(8);
	}
	if (number == 8) {
		printSegment(8);
		printSegment(7);
		printSegment(6);
		printSegment(3);
		printSegment(4);
		printSegment(5);
		printSegment(9);
	}
	if (number == 9) {
		printSegment(8);
		printSegment(7);
		printSegment(6);
		printSegment(3);
		printSegment(4);
		printSegment(9);
	}
}
void resetDisplay() {
	for (int i = 2; i < 10; i++) {
		digitalWrite(i, HIGH);
	 }
}

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin 13 as an output.
for (int i = 2; i < 10; i++) {
	pinMode(i, OUTPUT);
	digitalWrite(i, HIGH);
 }
}

// the loop function runs over and over again forever
void loop() {
	for (int k = 0; k < 21; k++) {
			resetDisplay();
			printDigit(pi[k]);
			delay(1000);
		}

//printDigit(0);
//digitalWrite(6, HIGH);
  //digitalWrite(2, HIGH);   // turn the LED on (HIGH is the voltage level)
  //delay(1000);              // wait for a second
  //digitalWrite(2, LOW);    // turn the LED off by making the voltage LOW
  //delay(1000);              // wait for a second
}

//Unused code

/*
 int pi[21] = {3,1,4,1,5,9,2,6,5,3,5,8,9,7,9,3,2,3,8,4,6};

	/*
	for (int j = 0; j < 10; j++) {
		resetDisplay();
		printDigit(j);
		delay(1000);
	}
	*/
	/*
	for (int k = 0; k < 21; k++) {
		resetDisplay();
		printDigit(pi[k]);
		delay(1000);
	}
	*/

//printDigit(0);
//digitalWrite(6, HIGH);
  //digitalWrite(2, HIGH);   // turn the LED on (HIGH is the voltage level)
  //delay(1000);              // wait for a second
  //digitalWrite(2, LOW);    // turn the LED off by making the voltage LOW
  //delay(1000);              // wait for a second

 */