Arduino is an open-source electronics platform based on easy-to-use hardware and software. Arduino boards are able to read inputs such as – light on a sensor or a finger on a button – and turn it into an output – activating a motor, turning on an LED. You can tell your board what to do by sending a set of instructions to the microcontroller on the board. To do so you use the Arduino programming language and the Arduino Software (IDE). Learn to interface various kinds of sensor which will collect real world data and we can further process that data according to our need. For Example: Interfacing Led’s with arduino, Switch interfacing, Burglar alarm, Automatic dark detector, Etc.