A solderless breadboard lets you test connections before soldering. Groups of five contacts are usually connected across each row, with the center gap separating the sides. Power rails run along the edges; some are split midway. Use a continuity tester with power disconnected to confirm the layout. Keep wire colors consistent, use a current-limited low-voltage supply, and check polarity before turning on power.
A practical guide to breadboards
A solderless breadboard lets you test connections before soldering. Groups of five contacts are usually connected across each row, with the center gap sepa