Yes—a maker-built device inspired by a LEGO computer-display brick contains a tiny OLED screen and a Raspberry Pi RP2040 microcontroller, and its latest documented version can run a playable port of Doom. It is a custom electronics project, not a standard LEGO product.
What is the LEGO brick computer?
Maker James Brown turned the familiar LEGO brick with a printed computer display into a working miniature screen. The project evolved from an animated display into a self-contained computer. In the later design, the main electronics fit inside the display brick and an additional brick that snaps onto its underside.
Gareth Halfacree’s report for Hackster.io describes the build and points readers to Brown’s YouTube channel for an assembly walkthrough. The report does not establish that complete build files or a full parts list are available.
How the self-contained version works
The documented build combines a Raspberry Pi RP2040 microcontroller, a 0.42-inch OLED panel, a small battery pack, an accelerometer, and a tiny custom circuit board. The display is monochrome and low-resolution. To render Doom with more than one apparent gray level, the port uses sub-frames—successive display updates that create the impression of additional shades.
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Two studs on top of the brick act as capacitive touch controls, while the accelerometer supplies motion input. Together, they let the device be played without an external controller. Brown said the touch controls were not tuned very well and described the result as “a bit shooty,” so the controls are a working demonstration rather than a polished game interface.
How the project changed over time
| Stage | What the brick does | Electronics and input described |
|---|---|---|
| Animated display prototype | Shows an animation on the brick’s screen. | The report does not specify the complete hardware or input method for this stage. |
| External-monitor version | Acts as a small monitor driven by external hardware. | The report does not specify the complete hardware or input method for this stage. |
| Self-contained Doom build | Runs the game locally on an RP2040. | Uses the 0.42-inch OLED, battery, accelerometer, custom PCB, and touch-sensitive studs. |
The extra brick beneath the display provides room for components including the battery and accelerometer, alongside the controller and display electronics. Brown described the motion-controlled version as “playable” entirely on the brick.
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Could you build one?
The reported article identifies the main component types, but it does not give exact part numbers, display resolution or interface, a complete bill of materials, or enough sourcing detail to treat the build as a ready-to-follow plan. If you are looking for components, “0.42-inch OLED display” is a reasonable starting search phrase—not a guarantee that any panel of that size will fit or work.
- Check the panel’s physical dimensions and electrical compatibility with the intended controller and circuit before buying; the exact panel model is not identified in the report.
- Expect to source or design a compact PCB and find suitable battery and accelerometer components; the report does not name purchasable models.
- Allow for enclosure constraints: the design uses the display brick plus a brick beneath it to house the electronics.
- Use Brown’s assembly walkthrough as a possible source of practical detail, but confirm whether it provides the files and sourcing information you need before treating it as a complete build guide.
What the project demonstrates—and what it does not
This is a compact maker demonstration of putting a functioning display and locally running software inside a LEGO-inspired form factor. The described Doom build combines a very small monochrome screen with custom controls and motion input; its apparent grayscale rendering is achieved through sub-frames rather than a full-color panel.
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It should not be mistaken for an off-the-shelf LEGO computer, nor does the report establish a standardized kit, complete parts list, or drop-in design that can be reproduced from the component descriptions alone.
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