This 2×40 right-angle edge connector plugs directly onto the bottom edge of a BBC micro:bit, breaking out the edge contacts so you can route GPIO, power, and ground into your own PCB or wiring. The right-angle form factor keeps the micro:bit low-profile and makes it easy to mount flush to a custom board for neat, robust builds.
Compatibility-wise, it matches the BBC micro:bit edge contact pattern and is intended for micro:bit expansion/breakout designs. Note that while it’s an 80-pin (2×40) connector, the micro:bit’s edge contacts vary in width, so some contacts may span multiple pins. Also, the back row of pins is not connected to the micro:bit—so plan your PCB footprint and routing accordingly.
It’s ideal for creating custom micro:bit carrier boards, classroom STEM add-ons, or permanent installations where a plug-in cable solution would be bulky or less reliable. Compared with using a clip-on/breadboard adapter, this connector is better when you’re designing a dedicated PCB and want a clean right-angle mechanical mount, but it’s less convenient for quick breadboard prototyping. If you’re building a full carrier board, consider pairing it with Pin Headers for board-to-board connections, JST Connectors for power/peripherals, and Hook-up Wire for off-board signals.
Key Features
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Adafruit
2x40 Right Angle Edge Connector for micro:bit
This 2×40 right-angle edge connector fits directly onto the bottom edge contacts of the BBC micro:bit, providing access to all GPIO pins, power, and ground c...
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This 2×40 right-angle edge connector fits directly onto the bottom edge contacts of the BBC micro:bit, providing access to all GPIO pins, power, and ground connections. The right-angle design is ideal for mounting on custom PCBs.
The connector has 80 pins total, but because the micro:bit edge contacts have varying widths, some contacts map to more than one pin. The back row of pins is not connected to the micro:bit.
Key Features
- 80-Pin Connector – 2×40 right-angle edge connector
- micro:bit Compatible – Fits the BBC micro:bit edge contact pattern
- Full Pin Access – Access to all edge contacts including GPIO, power, and ground
- Right-Angle Design – Ideal for custom PCB mounting
Ideal For
- Custom micro:bit breakout boards
- PCB-based micro:bit expansion projects
- Building your own micro:bit accessories
Package Contents
- 1× 2×40 right-angle edge connector
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.
- 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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