Power Supply and Prototyping

Mini bread board can be used with various models protoshield (prototype expansion board) of Arduino. Invaluable tool for fast build a prototype of an electronic circuit use with transistors, diodes, led, resistors, capacitors and virtually all types of components.

Breadboard is a plastic board with a bunch of tiny holes and is used for building and testing circuits. It has holes on them which are connected internally in a particular pattern as shown in the below picture. The holes which are connected through green line represents they are connected internally.