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A "solderless breadboard" (or just "breadboard") is a simple way to quickly create and change a developing circuit, often called a prototype circuit. Parts are just inserted into the same column of the breadboard to connect them. Metal clips underneath the breadboard connect the wires or component leads.

Understanding how the holes (and which holes) are connected is important.

Below: A breadboard that was pulled apart to reveal how the holes are connected.

!Setting up your breadboard

Since most of the time we are using the 5 volts provided by the Arduino board for everything on the breadboard

  • We can hook the upper + (red) power rail to the lower one.
  • And the same goes for the - (black) ground rail (or bus).

We like to set the breadboards up with red and black wires connecting the power rails on the right side of the board.

An LED in a corner can be a useful addition to be sure that there is voltage in the breadboard power rails. (below)

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Page last modified on February 15, 2017, at 07:48 PM