The Pinouts Book helps you understand components and boards

The Pinouts Book is a free PDF download contains over 300 pages of high-contrast hardware diagrams and their respective pinouts.

The Pinouts Book is a free digital book created for designers and engineers as a quick reference for remembering the different pinout functions in your electronics projects.

The book covers 130 commonly used components (view list), such as connectors, single board computers, dev boards, memory cards, microcontroller chips, and more (includes 11 Adafruit boards, but we’re not involved in this).

If you need more technical information, each page has a link at the top (e.g. pinouts.org/XXX), and these redirect to official datasheets / specifications.

See the video of this work of art from NODE and Baptiste and the book is at pinouts.org. More information this blog post at and Hackaday.

The project will always be free but they have some merch to help support things.


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1 Comment

  1. I think it would be a good idea to have a version that does not use black backgrounds for the line drawings, if you try to print it on an inkjet, which is the most common printers that people have, you will burn through a lot of ink and end up with a pike of very soggy pages.

    Just provide an inkjet version that has the drawings all reversed, black for white.

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