The scrolling display boards are the most attractive among all kind of display boards. They are widely used in advertisements, used in public transport vehicles, used as information boards in railway station, airport etc. They are commonly made of LEDs or LCD screen and are usually connected to a computer or a simple microcontroller which can send the data to the screen. The microcontroller can send data to the screen using its serial port. The data could be saved in the microcontroller itself or it is received from a PC. The serial communication port is the one of the most effective communication method available with a microcontroller. The serial port of the microcontroller provides the easiest way by which the user PC and the microcontroller can write their data in the same medium and both can read each other’s data.