How to Make Simple Circuits on a Breadboard
- 1). Sketch your circuit as a layout of parts. Remember that, on the main part of the board, vertical rows are connected together in blocked groups. Use this feature to plan your layout.
- 2). Cut several pieces of wire from three to eight inches. Strip about a quarter inch of insulation from each end. Red wires usually indicate positive power. Green or white wire can serve as ground. Black indicates negative.
- 3). Connect one longer red wire to the topmost row of the board. Connect a longer black wire to the bottom-most row. These will carry power from your supply to the board.
- 4). Run colored jumper wires from the power connection areas of the board (top and bottom) to the main part of the board. Keep to the color scheme above, red for positive, black for negative.
- 5). Insert any integrated circuits (ICs) in the central area meant for them. They should straddle the wide center slot. Use your sketch as a guide. Double-check their orientation.
- 6). Insert transistors, resistors and other parts according to your sketch. Orient them horizontally to avoid shorting out parts. Use short pieces of wire to jumper between rows, if needed. Check that parts are correctly connected to the power-carrying wires.
- 7). Apply power to the power supply wires.