Doodling on breadboards¶

Breadboards are great, but one problem with them is that projects tend to become quite hard to keep intact, especially when anything else is connected to them via additional wires. Once you start moving a project around ... it might stop working.

The idea of DoBB is to add an extra layer of indirection (haha, software geek speaking): place some headers along the sides of the breadboard and then plug this whole side-bread into up to 4 expansion bases:

The expansion bases have room for three 3x7 or two 5x7 proto-board modules. They distribute +5V and +3.3V power, as well as 4 dedicated per-module wires and 4 shared bus wires. All connections are routed left and right to 20-pin headers, matching the side-bread's layout.

In short: side-breads add headers on the side, which connect to expension bases, each with 4 power pins, 12 dedicated pins for up to 3 modules, and 4 shared pins for use as bus signals. Now it's easier to take things apart and restore them later.