Now we have little bit idea about Arduino, how to program using C etc. Here we are talking about practical sections of basic programming with examples. Do it in a continuous way it will help you learn basic programming of Arduino.
Connect your Arduino to the computer with the USB cable. You do not need the battery for now.The green PWR LED will light. If there was already a program burned into the Arduino, it will run.
Warning: Do not put your board down on a conductive surface; you will short out the pins on the back!
Practical’s on Basic Programming