Side-breads¶

A "side-bread" is a PCB with doubled 2-pin headers on the side. Each pair acts as a pass-through, with the top headers used for jumper wires to the breadboard area next to them. It turns a breadboard into something which can be inserted onto one or more baseboards.

Single 400-hole breadboard¶

This version has one 20-pin header on each side:

Double 800-hole breadboard¶

There is also a larger version, with two 800-hole breadboards and a total of four 20-pin headers, two on each side:

To reduce the total width, the inner supply "rails" between the two breadboards have been removed, i.e. only the outside rails are present.