Super Breadboard

Enjoy short circuit protection. Have both +3.3V and +5V at hand. Clearly separates data input and output of your prototype. With goodies.

Description

A prototyping board based on a standard 400 pin breadboard. Has multiple voltage rails (+5, +12 and -12V), 8-bit data input and output connectors, a Clock and Action line. It has 3.3V regulation on the board itself, based on the 5V input. The 5V and 3.3V lines are protected against short circuits, power is then cut off and this is indicated by a red LED.

Some other handy goodies are around the breadboard, including a mini USB B connector that can act as a breakout for a prototype, or it can supply 5V power (3.3V is derived) by using a power bank. A push button and LED (with resistor) are ready for use. All signals of the extension interface can be bridged using jumpers. For example: the four high-nibble input-bits can be tied to the output when they are not used on the breadboard.

Details

The project is compatible with the 8-bit Workbench™ extension bus and can connect to other projects of mine:

8-bit Workbench™; an annotated 8-bit display that talks hexadecimal and octal. An Action-button provides a properly de-bounced signal to use with microprocessors or TTL logic.
Terrific Timer; a versatile clock board that provides an adjustable astable clock (0.7 - 480 Hz) and a monostable pulse (110 ms). Lets you insert custom 555-timer parts.
Binary Keyboard; adds a retro 8-bit toggling experience to your experiments.
Hex Keyboard; turn-in a hexadecimal code (0-F) for the high- and the low-nibble. The output, a full byte (8-bits), can then be used with attached experiments. Supports a Logic Probe as well.

These are all available as kits.

More information is on my website.

Files

PrototypeExample.pdf

Counter Example

Adobe Portable Document Format - 104.07 kB - 02/18/2026 at 14:06

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