User Guide

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so milliamps (mA, or thousandths of an amp) can be used
instead.
The resistance of a circuit limits the amount of current that flows
and protects components. It is measured in ohms, and written
with the symbol Ω. Resistors have color-coded stripes that
indicate the amount of resistance that they put in a circuit.
7.2 Solderless Breadboards
Breadboards (or “solderless breadboards”) are easy ways of
connecting components temporarily.
The various rows of holes are joined together inside the board.
On a standard breadboard, there are four long rows. The holes
in each row are joined together inside the board, but none of
these rows are joined to each other.
In the middle of the board, the holes are divided into columns.
Column 15 is highlighted on the diagram below.
Figure 2. Layout of a typical breadboard
A15–E15 are joined, and F15–J15 are also joined. But the two
groups are not connected together or to any other columns.
Connecting the Raspberry Pi to a Breadboard
In electronics, a male connector is a pin, plug, or wire that slots
into a female connector. Female connectors are usually sockets
1 5 10 15 20 25 30
1 5 10 15 20 25 30
A
B
C
D
E
F
G
H
I
J