A breadboard is used to build and test circuits quickly before finalizing any circuit design. The breadboard has many holes into which circuit components like ICs and resistors can be inserted. The holes are most commonly spaced 0.1“ apart to accommodate standard DIP components.
Solderless breadboards make prototyping simple. Breadboards enables you to connect electronic components in thousands of ways to produce working circuits without soldering or damaging your circuit board — and you don’t need additional tools. A breadboard is made up of formed metal sockets firmly secured in a durable plastic housing. The breadboard’s grid pattern is a useful combination of isolated tie points serving as discrete points in the circuit as well as a continuous bus structure that distributes power and provides common ground points.
The breadboard has strips of metal sockets which run underneath the board, and connect the groups of five holes on the board. Note that the top and bottom rows of holes are connected horizontally while the holes in the center sections are connected vertically.