Hardware Reference
In-Depth Information
Figure 1-7.
A breadboard
A breadboard works by providing horizontal rows of connector holes (often separated
by a gap) that are wired together. When you want to connect two wires together, you
can simply insert them into holes along the same horizontal row. Need more holes?
Just jump a wire from one row to another.
Additionally, most breadboards have vertical “rails” down each side, marked with red
and black. These rails are intended to be used for power and ground connections, to
simplify wiring circuits.
Our friends at Adafruit built a handy kit called the Pi Cobbler, which allows you to
connect a standard 26 pin ribbon cable (just like you'd use on a PC motherboard) to
a labeled printed circuit board (PCB) with a cable connector and individual pin break-
outs. That PCB breakout board has pins that allow it to push right into your bread-
