This is a tutorial on how to make a simple knight rider aka blinking led wave.

Step 1: What You Need

5 leds
5 220 ohm resistors
Arduino
Usb cable
Breadboard

Step 2: Wiring

Well what you need to do is for the first led connect it to the resistor to pin 6 digital. Then for the other leds it will go in order so led 2 goes to pin 5 digital and so on. Everything is in the picture. Hope you get it! Then connect all the leds negative wire thing to GND . That's kinda all though so upload the following code in the next step

Step 3: The Code

// LED Wave

void setup() { pinMode(2, OUTPUT); pinMode(3, OUTPUT); pinMode(4, OUTPUT); pinMode(5, OUTPUT); pinMode(6, OUTPUT); }

void loop() { digitalWrite(2, HIGH); delay(500); digitalWrite(2, LOW); digitalWrite(3, HIGH); delay(500); digitalWrite(3, LOW); digitalWrite(4, HIGH); delay(500); digitalWrite(4, LOW); digitalWrite(5, HIGH); delay(500); digitalWrite(5, LOW); digitalWrite(6, HIGH); delay(500); digitalWrite(6, LOW); digitalWrite(5, HIGH); delay(500); digitalWrite(5, LOW); digitalWrite(4, HIGH); delay(500); digitalWrite(4, LOW); digitalWrite(3, HIGH); delay(500); digitalWrite(3, LOW); // the loop() will now loop around and start from the top again }