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Logic gates

Toggle inputs and record logic gate outputs. Change NAND wiring to build AND, OR and NOT gates.

    E26 · Logic gates0.00 s · Ready

    Electronics · Digital logic and control / Principles and inquiry

    Logic gates experiment guide

    Toggle inputs and record logic gate outputs. Change NAND wiring to build AND, OR and NOT gates.

    How does it work?

    Combining NAND gates can produce NOT, AND and OR.

    Key relationship

    AND: A·B · OR: A+B · NOT: ¬A · NAND: ¬(A·B)

    Try this investigation

    1. Toggle A and B and watch the truth table and output LED. Select a wiring mode to connect NAND combinations.
    2. Run and record each of the three baseline presets.
    3. Build AND and OR from NAND and compare every row with the target truth table.

    Interpreting your results

    What is the output when both NAND inputs are connected to A?

    NOT A

    Assumptions and limitations

    This is 0/1 combinational logic with no delay or intermediate voltage. Cyclic wiring is an error. Preset wiring modes replace free dragging and also support keyboard operation. Use this simulation; do not reproduce it with real power supplies or wall outlets.