LEDs - let's flash some lights!

I used six LEDs for this project, with the Arduino I created ~30-second sequence. I used the 5V output powering the Arduino with my laptop. Using the pins 5-10 to power the breadboard and the individual lights. For reference, all warm-colored cables are positively charged and cool colors are negatively charged.

My circuit board

closes ups of the wiring.

This part was pretty straight forward from our class practice. Powering each LED with its own pin that then has its own resistor. To make a somewhat symmetrical layout I powered both sides of the breadboard with the red and black jumpers as seen in the top image. 

The code was a bit trickier, not in the actual turning on and off (HIGH/LOW) of the LEDs but the code itself is long and clumsy looking. There are probably better ways to turn off and on full sections of LEDs all at once as I have in the code posted below but in better shorthand, maybe an array?

// the setup function runs once when you press reset or power the board void setup() { // initialize digital pin LED_BUILTIN as an output. //pins used pinMode(5, OUTPUT); pinMode(6, OUTPUT); pinMode(7, OUTPUT); pinMode(8, OUTPUT); pinMode(9, OUTPUT); pinMode(10, OUTPUT); } // the loop function runs over and over again forever void loop() { //this section is all light on, then off digitalWrite(5, HIGH); digitalWrite(6, HIGH); digitalWrite(7, HIGH); digitalWrite(8, HIGH); digitalWrite(9, HIGH); digitalWrite(10,HIGH); delay (5000); digitalWrite(5, LOW); digitalWrite(6, LOW); digitalWrite(7, LOW); digitalWrite(8, LOW); digitalWrite(9, LOW); digitalWrite(10, LOW); //this sections flashes the lights individually counting up from 5 delay(800); digitalWrite(5, HIGH); delay(400); digitalWrite(5, LOW); delay(400); digitalWrite(6, HIGH); delay(400); digitalWrite(6, LOW); delay(400); digitalWrite(7, HIGH); delay(400); digitalWrite(7, LOW); delay(400); digitalWrite(8, HIGH); delay(400); digitalWrite(8, LOW); delay(400); digitalWrite(9, HIGH); delay(400); digitalWrite(9, LOW); delay(400); digitalWrite(10, HIGH); delay(400); digitalWrite(10, LOW); delay(400); //Flashes all lights on and off, faster than 1st time digitalWrite(5, HIGH); digitalWrite(6, HIGH); digitalWrite(7, HIGH); digitalWrite(8, HIGH); digitalWrite(9, HIGH); digitalWrite(10,HIGH); delay (500); digitalWrite(5, LOW); digitalWrite(6, LOW); digitalWrite(7, LOW); digitalWrite(8, LOW); digitalWrite(9, LOW); digitalWrite(10, LOW); delay(500); //This section ping-pongs the on/off of lights in this order 10 to 7, 7 to 8, 8 to 5, and 6 to 9 digitalWrite(10, HIGH); delay(100); digitalWrite(10, LOW); delay(500); digitalWrite(7, HIGH); delay(100); digitalWrite(7, LOW); delay(500); digitalWrite(8, HIGH); delay(100); digitalWrite(8, LOW); delay(500); digitalWrite(5, HIGH); delay(100); digitalWrite(5, LOW); delay(500); digitalWrite(6, HIGH); delay(100); digitalWrite(6, LOW); delay(500); digitalWrite(9, HIGH); delay(100); digitalWrite(9, LOW); delay(500); //this section turn on all the lights on one side with a delay that then turns on the lights on the other side as well digitalWrite(5, HIGH); digitalWrite(6, HIGH); digitalWrite(7,HIGH); delay (1000); digitalWrite(8, HIGH); digitalWrite(9, HIGH); digitalWrite(10,HIGH); delay (1000); //with both sides on, the lights slowly turn off in groups in this order 5 and 10, 6 and 9, 7 and 8 digitalWrite(5, LOW); digitalWrite(10, LOW); delay (1000); digitalWrite(6,LOW); digitalWrite(9, LOW); delay (1000); digitalWrite(7, LOW); digitalWrite(8,LOW); delay (1000); //the lights will now turn on in the same grouping but backwards digitalWrite(7, HIGH); digitalWrite(8,HIGH); delay (1000); digitalWrite(6, HIGH); digitalWrite(9,HIGH); delay (1000); digitalWrite(5, HIGH); digitalWrite(10,HIGH); delay (1500); //turns all lights off before restart from the begining digitalWrite(5, LOW); digitalWrite(6, LOW); digitalWrite(7, LOW); digitalWrite(8, LOW); digitalWrite(9, LOW); digitalWrite(10, LOW); delay(1000); }
 Although the code is bulky, I am pretty happy with how the sequence itself turned out.