In this video I have covered reading serial data from Serial port on Arduino. Once the data is read, we have controlled an on board Led. I hope you like it.!!  

Communication is exchange of information which takes places between humans. Similarly when processor or electronics communication takes places, the exchange of information is in the form of bits.

There are many protocols developed for establishing communication channel between two or more devices and used depending upon the need and application. All of the communication comes under either serial communication or parallel communication.