It’s always great when we get a chance to follow up on a previous project with more information, or further developments. So we’re happy that [“Ancient” James Brown] just dropped a new video showing the assembly of his Lego brick with a tiny OLED screen inside it. The readers are too, apparently — we got at least half a dozen tips on this one.
We’ve got to admit that this one’s a real treat, with a host of interesting skills on display. Our previous coverage on these bedazzled bricks was disappointingly thin on details, and now the original tweets even seem to have disappeared entirely. In case you didn’t catch the original post, [James] found a way to embed a microcontroller and a remarkably small OLED screen into a Lego-compatible brick — technically a “slope 45 2×2, #3039” — that does a great job of standing in for a tiny computer monitor.
The present video shares a lot more detail on this fancy brick. The core of the circuit is four tiny scraps of PCB, hosting the RP2040 microcontroller and necessary support components. [James] used a series of 3D-printed jigs to hold the boards while soldering, which results in a compact package to fit inside the sloped brick. After attaching the diminutive OLED and doing a little testing, the circuit origami is placed into one half of a two-piece silicone mold. Translucent plastic resin is mixed up and added to the mold, which flows around the circuit to complete the build.
The results are amazing — a brick that looks like a stoc ..
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