Adafruit
Adafruit Swirly Aluminum Mounting Grid for 0.1" Spaced PCBs
The Adafruit Swirly Aluminum Mounting Grid provides a mechanical substrate for mounting small microcontroller boards, sensors, and Feathers that use STEMMA Q...
The Adafruit Swirly Aluminum Mounting Grid provides a mechanical substrate for mounting small microcontroller boards, sensors, and Feathers that use STEMMA QT plug-and-play connections. When you're snapping boards together with I2C cables instead of using a breadboard, this grid gives your project a solid, organised base.
Made from a single-sided aluminium-core PCB (no copper — just aluminium with black solder mask and white silkscreen), the grid features holes and slots on a 0.1" spacing pattern. The aluminium is easy to cut, drill, machine, or bend for custom configurations.
Key Features
- 0.1" Grid Pattern – Holes and slots every 0.2" on a 0.6" × 0.6" square grid
- Drill Holes – 2.54 mm (0.1") diameter
- Slots – 2.75 × 7.5 mm (0.11" × 0.3")
- Aluminium Core – Sturdy, easy to cut/drill/machine/bend
- Black Solder Mask + Silkscreen – Clean, professional appearance
Ideal For
- Mounting STEMMA QT sensor and board assemblies
- Organising multi-board Feather projects
- Creating a mechanical base for breadboard-free builds
- Custom enclosure and project box mounting
Package Contents
- 1× Swirly aluminium mounting grid
Jargon buster
Plain-language definitions for the technical terms used above.
- ground plane
- A ground plane is a large area of copper on a circuit board connected to ground. It helps provide a stable return path for signals and is especially important for reducing noise in high-speed connections.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
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