Beta!

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Help

Use the following steps to complete the wiring of the breadboard

  • Select your circuit. If this is your first time, choose the SR NAND or SR NOR.
  • Operate the switches in the circuit simulator. Read the description of the circuit if you need additional information.
  • Using the schematic, wire up the circuit in the breadboard simulator. When a wire end is placed in a socket of the breadboard that corresponds to a node on the schematic, the respective node of the schematic will turn red.
  • If a correct connection is made, the wire ends will snap into the socket.
  • Note that all the VCC (red wire) and GND (black wire) connections are already done.
  • When all the nodes are wired up, a red LED will light up near the VCC/GND terminals.
  • You may now operate the breadboard switches and observe the LED results.
  • When you wire up the circuit using a real digital trainer, do remember to wire the VCC and GND wires and power up the digital trainer.
  • You must login using your facebook account to save or restore the breadboard connections.
  • Click to close any of the panes (breadboard/schematic/description/help) and click on the corresponding menu item to open it.

If you are unfamiliar with the breadboard, there are many resources available online that explains how to they work.

Up / Down Synchronous counter

SW6 determines if the counter counts up or down. Clicking SW7, observe the sequence of count. As the design of synchronous is quite involved, please see Synchronous Counter Design for details.