First Arduino Project with Program (led blinking)

arduino tutorial first arduino project led blinking. arduino microcontroller board is an open source platform for technical and non technical persons to make and develop electronics project. it is the most popular microcontroller board since it is very easy to use. there are various kind of arduino board. arduino UNO, NANO, MEGA etc are some examples of arduino microcontroller board.
 The microcontroller board contains AVR microcontroller. for example arduino UNO has atmega328