I have finished my first year in engineering and would like to do some projects related to arduino. What should we do as a starter?
closed as too broad by The Photon, JYelton, W5VO♦ Jun 27 '13 at 18:21
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The question is a little like: "What field can I specialize in if I am a medical student?"
The answer is: "Whatever you like."
Seriously, doctors aren't forced to become knee surgeons or oncologists. They do so because of their interests, aptitude, and often colleagues or institutions that they know or are familiar with.
Electrical engineers are the same way. If you're interested in cross-country power delivery and generation, focus on transmission lines and high voltage. If you want to develop atom-sized transistors or nanometer-scale integrated circuits, you can specialize in that, instead.
Now that you've edited your question to be a little more specific...
The Arduino is a great prototyping and development kit. I skipped Basic Stamps and PIC when they started becoming popular, and wound up getting back into electronics when the Arduino first showed up. From the Arduino, I quickly realized that I wanted to be able to program small microcontrollers without the rest of the development board, and learned how to work with Atmel AVR microcontrollers, which are at the heart of the Arduino.
So, my recommendation is to work on the Arduino more, doing projects that are of interest. You might want to pick up a book like the Arduino Cookbook or any of the thousands of online tutorials from sites like MakerShed and Instructables.
Since you're in engineering, I'll assume you're getting the basic coursework for DC and AC electronics, semiconductors and digital electronics. That will provide a solid background for branching out from the Arduino and developing your own support circuitry, prototyping on breadboards, experimenting with other microcontrollers, and perhaps designing your own boards.