Arduino is a tool for making computers that can sense and control more of the physical world than your desktop computer. It's an open-source physical computing platform based on a simple microcontroller board, and a development environment for writing software for the board.
The firs example is the "Knight Rider" with LED fading.
The second one is a Led with a potenciometer that controls the rate of the blinking.
You can find the code for this examples an more at:
http://www.arduino.cc/en/Tutorial/HomePage
nice work..........see my chanel
29riteshkakkar 9 months ago
don't you need resistors for your LED's?
1world1love2day 9 months ago