Some kids are afraid of darkness, this little breathing night lamp can let their breaths follow the patterns of the light so they can go asleep more easily.

Step 1: LED Lights and the Arduino Board

Connect 1 group of LED lights, put the Dpin on the PWM signal pin.

Step 2: The Code

Here's the code:

int _brghtness ;

int _brightness ;

void setup(){ // put your setup code here, to run once: _brghtness = 0 ;

}

void loop(){ // put your main code here, to run repeatedly: for (int j = 0 ; j < 255 ; ++j ) { _brightness = ( _brghtness + 0 ) ; analogWrite(6 , _brightness); //analogWrite values from 0 to 255 delay( 50 ); // waits a few milliseconds } delay( 2000 ); // waits a few milliseconds for (int i = 0 ; i < 255 ; ++i ) { _brightness = ( _brghtness - 0 ) ; analogWrite(6 , _brightness); //analogWrite values from 0 to 255 delay( 50 ); // waits a few milliseconds } }

Step 3: The Outside Look

Use a simple shoebox to cover the Arduino board, I made a little ball out of plastic for the out side of the LED lights so it became a cute little lamp.