Arduino is a kind of open-source platform that is based on easy-to-use hardware and software. It is able to read inputs, light on a sensor, a finger on a button, or a twitter message. And it can turn into an output. Arduino also used for activating a motor, turning on an LED, publishing something online. Users can tell the boards what to do by sending an instruction to the microcontroller on the board. To do this all things you have to use Arduino Programming Language and the Arduino Software based on processing.

It is simple and accessible user experience. It is still used in a variety number of projects and applications. Arduino is much easy for beginners, still flexible enough for advanced users.

• Arduino offers some advantages. These are:
• Arduino boards are inexpensive if we compared them to other microcontroller boards.
• The Arduino software can able to runs on Windows, Macintosh OSX, and Linux operating systems. On the other hand, most microcontroller systems are limited to Windows.
• It provides a simple and clear programming environment.

Arduino boards consist of Power, Reset button, Power LED Indicator, TX, RX LEDs, Main IC, Voltage Regulator.

• Shields
• Board