RGB LED Lamp

This is a special lamp that helps you sleep well. I use the RGB LED to make this lamp, it's elegant if you add a cover.

1x Arduino Leonardo

5x Wires

4x Clip wires

1x RGB LED

1x Paper

1x 100ohm resistor

The link for full codes: Arduino CC

//RGB LED lamp
//The color of LED changes in the order of red, orange, yellow, green, blue, dark blue, and then purple.
//The RGB LED is controlled by the color of red, green, and blue
//Pin 7 controls the brightness of the red
//Pin 6 controls the brightness of the green
//Pin 5 controls the brightness of the blue 
void setup(){  // put your setup code here, to run once:
}
void loop(){  // Main code
  analogWrite(7 , 255);  //改
  analogWrite(6 , 0);  //改
  analogWrite(5 , 0);  //改
  delay( 1000 ); // waits a few milliseconds
  //Red
  analogWrite(7 , 255);  //改
  analogWrite(6 , 120);  //改
  analogWrite(5 , 0);  //改
  delay( 1000 ); // waits a few milliseconds
  //Orange
  analogWrite(7 , 255);//改
  analogWrite(6 , 255);  //改
  analogWrite(5 , 0);  //改
  delay( 1000 ); // waits a few milliseconds
  //Yellow
  analogWrite(7 , 0);  //改
  analogWrite(6 , 255);  //改
  analogWrite(5 , 0);  //改
  delay( 1000 ); // waits a few milliseconds
  //Green
  analogWrite(7 , 0);  //改
  analogWrite(6 , 255);  //改
  analogWrite(5 , 255);  //改
  delay( 1000 ); // waits a few milliseconds
  //Blue
  analogWrite(7 , 0);  //改
  analogWrite(6 , 0);  //改
  analogWrite(5 , 255);  //改
  delay( 1000 ); // waits a few milliseconds
  //Dark Blue
  analogWrite(7 , 130);  //改
  analogWrite(6 , 0);  //改
  analogWrite(5 , 255);  //改
  delay( 1000 ); // waits a few milliseconds
  //Purple
}

RGB LED is controlled by a negative polarity and three kinds of light: Red, Green, and Blue. These three colors are the primary colors of light. Different brightness for each color combined can make almost all kinds of color. I choose the colors of the rainbow: red, orange, yellow, green, blue, dark blue, and violet to be the colors of my lamp.

Build up the circuit like the image above.

1. Three wires connect from D5, D6, and D7 to the RGB LED.
2. A wire connects from GND to LED's negative polarity
3. 4 clip wires connect to the RGB LED
4. Upload the codes from Arduino app
5. Make a paper shade cover on it

Here is a link for how to use a paper to make lamp cover:

https://www.youtube.com/watch?v=DCelEdIow2c

After all of that, you are finish!

Congrats!

Source: LED blinking