Breadboard Architecture¶
The breadboard is the "canvas" of the MICRORACK system. Understanding how it works is key to building complex patches and expanding your system.
How Breadboards Work¶
A standard breadboard consists of:
| Component | Description |
|---|---|
| Terminal Strips | The main area where modules are inserted. Organized in vertical columns of 5 connected points. |
| Power Rails | The horizontal rows at the top and bottom (marked with + and – or red and blue lines). |
| Center Gap | The divider that separates the two halves of the terminal strips. |
Recommended Breadboard Sizes¶
| Size | Contact Points | Modules | Best For |
|---|---|---|---|
| 830-point | 830 | 8-12 | Standard setups |
| 400-point | 400 | 4-6 | Portable/compact rigs |
Bridging the Gap¶
Many standard breadboards have a split in the power rails halfway across the board. This can interrupt power flow in larger systems.
The MICRORACK Solution: Every MICRORACK module is designed to bridge the power rails. When you insert a module:
- It draws power from the rails on its left side
- It passes power through to the rails on its right side
- Power flows continuously left-to-right, even across rail gaps
Tip: If you're using a breadboard with a physical gap in the power rails, simply place a MICRORACK module over the gap to "bridge" the power to the other side.
Module Placement¶
Orientation Rules¶
- Vertical Alignment: Modules must be placed vertically to align power pins with the rails
- The Notch: Always ensure the triangular notch is at the bottom of the module
- Power Pins: Located at the bottom corners — they connect to the breadboard power rails
Spacing¶
- Modules can be placed side-by-side with no gap
- Leave gaps between modules for custom circuits or prototyping
- The terminal strip area above modules is available for patching and experimentation
Pin Layout¶
Per the MICRORACK Mechanical Specification:
| Position | Rail |
|---|---|
| Bottom-left corners | GND, V12- |
| Top-left corners | V12+, V5+ |
| Bottom-right corners | GND, V12- |
| Top-right corners | V12+, V5+ |
Safe Design: If you accidentally insert a module backwards, it simply won't work — MICRORACK modules include reverse polarity protection and won't be damaged.