After the initial blink set up, I worked towards setting up two different LEDs to blink alternately. 2 LED 2 Resistors (220Ω) Jumper wire 1 Arduino 1 Breadboard ##Code## // the setup function runs once when you press reset or power the board void setup() { // initialize digital pin 13 as an output. pinMode(13, OUTPUT); pinMode(12, OUTPUT); } // the loop function runs over and over again forever void loop() { digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level) digitalWrite(12, LOW); // turn the LED off by making the voltage LOW delay(500); // wait for .5 seconds digitalWrite(13, LOW); // turn the LED off by making the voltage LOW digitalWrite(12, HIGH); // turn the LED on (HIGH is the voltage level) delay(500); // wait for .5 seconds }