Blinking Diodes

Here is my gif for assignment 1! It shows all the LEDs blinking individually.

Here is my schematic for assignment 1! The schematic shows how my circuit board should be connected.

Here is my math for how I chose the proper resistance to use. I chose to use 220 ohms of resistance for all the LED lights because that is higher than the minimum resistance required.

This is the code I used to make my LEDs on my arduino blink!

void setup() {
// this setup code only runs once
pinMode(13, OUTPUT); // this code initializes pin 13
pinMode(12, OUTPUT); // this code initializes pin 12
pinMode(11, OUTPUT); // this code initializes pin 11
pinMode(10, OUTPUT); // this code initializes pin 10
pinMode(9, OUTPUT); // this code initializes pin 9
pinMode(8, OUTPUT); // this code initializes pin 8
pinMode(7, OUTPUT); // this code initializes pin 7
pinMode(6, OUTPUT); // this code initializes pin 6
pinMode(5, OUTPUT); // this code initializes pin 5
pinMode(4, OUTPUT); // this code initializes pin 4
}
void loop() {
// this is the main code which runs repeatedly
digitalWrite(13, HIGH); // turns on LED connected to pin 13
delay(1000); // keeps LED on for 1 second
digitalWrite(13, LOW); // turns off LED connected to pin 13
digitalWrite(12, HIGH); // turns on LED connected to pin 12
delay(1000); // keeps LED on for 1 second
digitalWrite(12, LOW); // turns off LED connected to pin 12
digitalWrite(11, HIGH); // turns on LED connected to pin 11
delay(1000); // keeps LED on for 1 second
digitalWrite(11, LOW); // turns off LED connected to pin 11
digitalWrite(10, HIGH); // turns on LED connected to pin 10
delay(1000); // keeps LED on for 1 second
digitalWrite(10, LOW); // turns off LED connected to pin 10
digitalWrite(9, HIGH); // turns on LED connected to pin 9
delay(1000); // keeps LED on for 1 second
digitalWrite(9, LOW); // turns off LED connected to pin 9
digitalWrite(8, HIGH); // turns on LED connected to pin 8
delay(1000);// keeps LED on for 1 second
digitalWrite(8, LOW); // turns off LED connected to pin 8
digitalWrite(7, HIGH); // turns on LED connected to pin 7
delay(1000); // keeps LED on for 1 second
digitalWrite(7, LOW); // turns off LED connected to pin 7
digitalWrite(6, HIGH); // turns on LED connected to pin 6
delay(1000); // keeps LED on for 1 second
digitalWrite(6, LOW); // turns off LED connected to pin 6
digitalWrite(5, HIGH); // turns on LED connected to pin 5
delay(1000); // keeps LED on for 1 second
digitalWrite(5, LOW); // turns off LED connected to pin 5
digitalWrite(4, HIGH); // turns on LED connected to pin 4
delay(1000); // keeps LED on for 1 second
digitalWrite(4, LOW); // turns off LED connected to pin 4
}