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GPIO Adapter for RPi B+

Description

When the Raspberry Pi B+ was introduced a time ago, we quickly noticed that not all existing add-on boards would fit on the redesigned computer, esp. add-on boards that cover a substantial area of the computer.

We came up with a simple method of connecting existing add-on boards to the B+. The solution is a GPIO adapter comprising two male headers: a 13x2 pin header and a 20x2 pin header.

The 13x2 pin header is where the add-on board plugs into. It's a through hole straight header, so the add-on board and the adapter are parallel.

The 20x2 pin header is a through hole right angle header. It's the connection point for the B+. It allows one to use a 20x2 pin ribbon cable with female connectors. This type of cable is commonly available.

The following picture shows the intended setup:

GPIO Adapter for RPi B+

The mounting holes are useful for fastening the GPIO adapter to an enclosure. Some of the holes can also be used for inserting a spacer between the add-on board and the GPIO adapter.

Bill Of Materials

  • 1x PCB.
  • 1x through hole straight 13x2 pin header.
  • 1x through hole right angle 20x2 pin header. You can also use a box header.
  • 1x 20x2 pin female-to-female ribbon cable.

Design Files

You can download the design files here.

License

The design files of the GPIO adapter are released in the public domain. You're free to create and manufacture products based on the design files and the concepts presented in this article.

If you create a product based on the design files, you're solely responsible for the outcome. We (Axiris) accept no liability for any damage that results from using the design files or the concepts presented in this article.

Be warned we've never prototyped or tested the design of the GPIO adapter.

Raspberry Pi is a trademark of the Raspberry Pi Foundation