Proto Shield Prototyping Board for Arduino Uno (with Mini Breadboard)

Prototyping directly on top of an Arduino

This Proto Shield lets a circuit be built and soldered directly on top of an Arduino Uno or compatible board, without needing an external breadboard sitting alongside it, though a mini breadboard is included for anyone who wants to test connections before soldering them permanently. The board uses a standard 0.1 inch by 0.1 inch prototyping grid with large pads, giving accessible IO pins through header connections and solder pads for whatever custom circuitry a project needs.

It works with UNO, Mega, Leonardo, NG, Diecimila, Duemilanove and compatible Arduinos, and includes both stacking headers and plain headers, so it can be built up either as the top shield in a stack or as a standalone add-on.

What's already built in

Beyond the bare prototyping grid, the shield comes with a DIP IC pattern supporting up to 20 pins, power rails running along the middle and sides for easy access to 5V and ground, a reset button plus an additional general-use button for custom input, and two 3mm LEDs (one red, one green) with matching resistors already wired in as ready-made status indicators. A pass-thru ICSP stacking header keeps the ICSP programming header accessible even with the shield fitted, and a surface-mount area supports up to 14 SOIC components for anyone soldering small surface-mount parts.

Gold-plated pads and two 0.1uF capacitors for power stability round out the design, and all pins are exposed for easy access from either the header rows or the solder pads themselves.

Who it suits

Anyone building a custom Arduino-based circuit that needs to move beyond a temporary breadboard setup, but isn't ready for a fully custom PCB, will find this shield's mix of prototyping area, included breadboard, and ready-made LEDs and buttons a practical middle step.

Questions buyers ask

Does it include a breadboard?

Yes, a mini breadboard is included alongside the solderable prototyping grid.

What LEDs are included?

Two 3mm LEDs, one red and one green, with matching resistors already fitted.

Which Arduino boards does it fit?