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Sick of trying to figure out which pins are used by some obscure Arduino shield? Can't tell whether two shields will be compatible with each other?

This shield database arose out of a discussion on the Arduino Forums about the need for a comprehensive online reference for shield pin assignments. It lists as many Arduino shields as I can find along with their pin usage, making it easy for you to determine if particular shields are compatible.

This system is still under heavy development so it's quite likely to break from time to time while I'm making changes.

I already have a to-do list, but if you have any other ideas I'd love to hear about them. The best place to discuss it is the forum thread that started it all, so please come along and have your say.

If you know of a shield that needs to be added, please tell me about it!

And if you have any other questions or comments I'm always happy to receive a good, old-fashioned email.

Enjoy!

--Jonathan Oxer

Submission Queue
There are currently 531 shields submitted that I haven't got to processing yet. Sorry!

License Ranking
Unknown: 178 shields
CC BY-SA 3.0: 45 shields
Unknown / closed source: 43 shields
TAPR Open Hardware License: 17 shields
CC BY-SA 2.5: 13 shields
CC BY-NC-SA 3.0: 5 shields
GPL v2: 3 shields
CC BY-SA 3.0 US: 3 shields
GPL v3: 3 shields
CC BY-SA 2.5 AU: 2 shields
CC BY 3.0: 2 shields
BSD: 1 shield
CC BY-NC 3.0: 1 shield
MIT Expat: 1 shield

The most complete collection of drivers for your computer!

A multifunction device/peripheral (MFD) is a truly wondrous invention, widely used in home and corporate offices to fulfill a range of business tasks. In plain words, this is a machine that incorporates the facilities of a printer, a copier, a scanner, and faxing equipment, being housed into a single case. Moreover, some models allow for creating a centralized document distribution within one network, for sure not without the help of multifunction devices drivers.
The privileges of MFDs are frequently seen through the prism of such aspects, as:

• better ergonomics. The possibility to save space on the desk and locate the machine in an inconspicuous place in office environment;
• better management. It’s always feasible to complete several processes at once for just a few minutes or even seconds;
• better efficiency. Productivity of such devices does not cast doubts in terms of output speed and quality.

• AIO small-sized desktop models. They are basically designed for home use and focus their operation on scanning and printing processes. Still, some of them have bundled software that helps in organizing photos, print data from smart-card readers and images from digital cameras.
• Office machines. These models usually feature mid-sized dimensions and are at ease in office environment. Office units include all existing range of options: printing, scanning, copying, and faxing. Besides, oftentimes they have networked document storage that is available for every user of that particular network.
• SOHO MFDs. Those are large-scale, freestanding units designed for corporate use. In contrast to traditional office units, these models include only basic options, and might not offer additional storages or authentication functions. Yet, their proper operation relies on updated drivers for multifunction devices.
• Production printing units. These peripherals are focused not on functionality but on high-quality, speedy output. Therefore, their main target is book creation, production printing, and reprographic processes.