Adafruit
Adafruit Perma-Proto 40-Pin Raspberry Pi Breadboard PCB Kit - with 2x20 Header
The Adafruit Perma-Proto 40-Pin Raspberry Pi Breadboard PCB Kit combines a full-sized prototyping board with a built-in Pi Cobbler breakout. Solder in the in...
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The Adafruit Perma-Proto 40-Pin Raspberry Pi Breadboard PCB Kit combines a full-sized prototyping board with a built-in Pi Cobbler breakout. Solder in the included 2×20 box header, connect a 40-pin GPIO cable, and you get labelled pin breakouts alongside 60 rows of breadboard-style prototyping space — perfect for making soldered Pi projects permanent.
The PCB mirrors a standard breadboard layout with 5-hole connected pads, four power bus rails, and clear silkscreen labelling. All holes are through-plated with a gold finish for durability and easy rework — no flaking pads or copper oxidation. Multiple mounting holes let you secure the board in an enclosure.
Key Features
- Built-in Pi Cobbler – 2×20 header position with labelled GPIO breakouts
- 60-Row Breadboard Layout – Familiar 5-hole pad pattern for easy component transfer
- Through-Plated, Gold-Finished – Durable pads that resist oxidation and survive rework
- 1.2mm Drill Holes – Accommodates components with larger leads
- 4 Power Bus Rails – Side-mounted power and ground distribution
- Multiple Mounting Holes – Secure attachment to enclosures and project boxes
- Cuttable Traces – Unmasked bottom side allows easy trace modification
Ideal For
- Transferring breadboard prototypes to permanent soldered PCBs
- Custom Raspberry Pi HATs and expansion circuits
- Permanent sensor, relay, or interface projects connected to a Pi
Package Contents
- 1× Perma-Proto 40-Pin PCB
- 1× 2×20 Box Header
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- Headers
- Rows of connector contacts on a fixed pitch (commonly 2.54 mm) used to link a board to a breadboard, jumper wires, or another board. They come as male pin headers and female socket headers; when a module ships with pre-soldered headers it can be used straight away, whereas bare pads require soldering the pins yourself.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
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Brands
Prototyping & Wiring
Raspberry Pi
