Kevin Santo Cappuccio
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architeuthisflux.bsky.social
Kevin Santo Cappuccio
@architeuthisflux.bsky.social
I'll think of some hack to let you do something similar with your existing boards (I also have an idea to allow you to add PSRAM by switching out that wishbone LED board.)
This isn't gonna be a new SKU, people will just randomly start getting this version when the old ones run out
October 21, 2025 at 5:00 PM
Yeah, it totally can. It's become such a core thing that the next batch of boards I order will have the I2C headers on the main board too so you don't need to use that adapter board.
(I guess you don't really *need* to use it now, you can just assign the I2C lines to connect somewhere else.)
October 17, 2025 at 5:20 PM
But ugh, there's so much new infrastructure in V5 that made this possible (color names > RGB, yaml state files, RTOS(ish) scheduler, fast pathfinding, etc.)

This is a perfect example of a simple feature that ends up being extremely non-trivial once you actually start writing it.

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October 17, 2025 at 4:32 PM
Too bad no one really uses Wokwi bridging on the V5 because all the other ways to wire stuff are much smoother.

I guess I should backport this whole onboard json parser stuff to the OG where it would be way more helpful, but holy crap that can contains so many worms.
October 17, 2025 at 4:32 PM
Reposted by Kevin Santo Cappuccio
Quick demo of the most basic (but still magical) feature of Jumperless V5 by @architeuthisflux.bsky.social: making connections without jumper wires.
It can do so much more: power supply, multimeter, oscilloscope, function generator, logic analyzer, etc.
Pardon the shaky, over-caffeinated hands. 😆
September 10, 2025 at 12:07 AM
This very ridiculous thing is coming along nicely. It's not even meant to be a projector, there was just a huge hole in the case so I decided to throw a lens in there.
September 2, 2025 at 4:50 PM
The liquid is ferric chloride. It's really not all that toxic to humans, there's just a ton of warnings because it'll eat copper pipes if you pour it down the drain. But I think people conflate that with it being straight-up alien blood to non-copper things too.
September 2, 2025 at 4:50 PM
This only came up because some guy on Twitter is considering making a Jumperless V5 on a desktop CNC mill. Which really makes me want a "closed source for your own protection" license.
August 25, 2025 at 5:48 PM
But also I'm biased because Jumperless is so hopelessly out of reach for even the best home fab equipment. Even apparently real board fabs, one had to throw away 800 PCBs and say they can't do it because they couldn't hit the clearances.

(I'm saying this as a challenge, please try it)
August 25, 2025 at 5:43 PM
Yeah once I wrote a helper function to cycleTerminalColors() and hand picked ~54 of them that reliably look good in a terminal, it got really easy to just toss those in everywhere to visually separate things.
August 25, 2025 at 5:31 PM
I'm always giving my friends shit for doing PCB assembly at home and then turn around and do this bushcraft-ass home fab stuff for one-offs with a vinyl cutter and a sharpie.
August 25, 2025 at 4:28 PM
Please continue being not afraid...

I decided since it's a selector switch and doesn't go all the way around, I'm just gonna bust this out on FR1 with ferric chloride and just use wires through the middle.
August 24, 2025 at 8:01 PM
No idea how I'm gonna get those signals down but I can tell you right now it's not gonna be a fucking slip ring.

*Narrator* It's probably going to be a slip ring.
August 24, 2025 at 5:26 PM
So a friend asked me for an LED controller, so when @alpenglow.bsky.social was doing an APEX mission I asked her to find some cool panel to use (with no further detail.)

Somehow she read my fucking mind because that one on the left is what I was going to use, and on the right is what she got me.
August 24, 2025 at 5:24 PM
Wait as I was writing that I realized you can already do that with the current µPython setup, you'd just drop the modules onto the filesystem and import it in your script like anything else.

I always forget how rad MicroPython is and I don't need to write support for every little thing myself.
August 22, 2025 at 5:16 PM