Innovation Lab #2: RGB LED Color Change

A Bongilcheon High School Innovation Lab project.

BeginnerShowcase (no instructions)10 minutes7,657

Things used in this project

Hardware components

Arduino UNO

Breadboard (generic)

RGB Diffused Common Cathode

Software apps and online services

Arduino IDE

Story

Innovation Lab (170814)

I learned how to turn on various colors with an RGB LED. With digitalWrite you can turn on 7 colors and with analogWrite you can turn on a variety of colors.

Code

RGB LED

int red = 11;
int green = 10;
int blue = 9;

void setup() {
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(blue, OUTPUT);
}

void loop() {
  digitalWrite(red, HIGH);
  digitalWrite(green, LOW);
  digitalWrite(blue, LOW);
  delay(1000);
  digitalWrite(red, LOW);
  digitalWrite(green, HIGH;
  digitalWrite(blue, LOW);
  delay(1000);
  digitalWrite(red, LOW);
  digitalWrite(green, LOW);
  digitalWrite(blue, HIGH);
  delay(1000);
}