Very happy about this.

· · Mastodon Twitter Crossposter · 67 · 502 · 743

Lots of people have asked, so: processor is a STM32F030F4P6 (Cortex M0, 16K flash, 4K ram), screen is a QT1306P82 (0.42" OLED).

I haven't shared the schematic because it contains an error; you need to rework the boards to route a spare gpio to the screen. This involves drilling a 0.3mm hole through one of the pads, making a break in the ground plane, and soldering a little piece of wire through.

Putting together another brick. These battery contacts are the hardest part of the build.

While that one cures, I added the trench run and got capacitive touch working in the studs.

The new one is more opaque and a closer match to Lego Blue. I also painted the edges of the screen with black lacquer, which got rid of the glowing surround. It’s a very fiddly construction. If I’m going to make more, I need to work on tooling.

@ancientjames These are absolutely beautiful! I assume tiny oled?

@ancientjames This is just amazing. I am assuming that the lower brick is your work. Eager to see more!

I can't even imagine soldering components that small, let alone drilling a microscopic hole in a microscopic pad to pass a microscopic wire! 😯 Nice job!

@ancientjames I do this professionally and am plenty impressed at drilling 0.3mm holes for a kludge. The result is beautiful.

@smellsofbikes It was almost worth getting it wrong just for the satisfaction of fixing it.

@ancientjames I love a satisfying pcb save with a righteous board mod. I'm the person who drills and mills mods on our automated test boards at work and it's a superhero feeling to make a $20k board start functioning.
(TIL when you lay out a big board do a soldermask cutout and put copper numbers on each layer so you can hold it up to a light and see if the Fab house stack up matches what you designed as sometimes they swap for impedance matching and that's a big hassle for hitting midlayers)

@ancientjames if you ever found away to mass produce these I would buy a half dozen they are amazing!

@ancientjames Can it play Doom?

(I'm just joking, of course.) This is so freakin' cool, and it's awesome to see the making-of. Fantastic work!

@ancientjames I realise this isn't news to you, but these are just amazing! 😁

@ancientjames This is so amazing! 🤯
Submit this video to Lego if you are looking for a job : )

@ancientjames this is the kind of stuff that if someone asked me if it was possible I'd tell them no. Awesome work.

@ancientjames @foosel omg I thought you were projecting the display somehow and I was impressed then! This is beyond!

@ancientjames @genofire what about the control board? did you design it yourself? what controller does it have?

Still amazed with this a day after

@ancientjames 🤩 That's absolutely awsome! Great idea and perfectly executed. 💯

And now the question that probably everybody is having on their mind: What display is that and where to get it?

@hacked_works Thank you! It uses this display: - I use a bunch of them in a keyboard that apparently I haven't been posting about on Mastodon

@hacked_works It's worth noting that it's a better display than that video makes it look - I deliberately drop the resolution to make it match the original Lego brick.

@ancientjames I didn't know what to expect when I launched this video, but amazing result ! You have brilliantly solved the weakness of the Lego control screens 😄

@ancientjames Here's hoping Lego's insane trademark/design patent/whatever enforcement team doesn't start coming after you...

@ancientjames That's awesome but i don't think it's allowed to use the LEGO logo, which can be clearly seen at the end of the video.

@n2m3e @ancientjames for personal use it should be no problem. You can paint your own Mona Lisa if you want.

@Bobo_PK @n2m3e @ancientjames AFAICT, the Mona Lisa image is in public domain. It's the physical canvas and pigments that are property of somebody.

Sign in to participate in the conversation

The original server operated by the Mastodon gGmbH non-profit