iiinova — where your digital self keeps evolving

Kevin Santo Cappuccio @jumperless.org · 02/10/2026

You have been hypnotized by garbage.

Kevin Santo Cappuccio @jumperless.org · 29/09/2026

I made a board to properly test this out but it's not here yet. I imagine the tracking will be smoother when the magnetometers aren't so jankily placed.

With clips and shell but without the Wiig on

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Kevin Santo Cappuccio @jumperless.org · 29/09/2026

Crazy what you can do with a handful of magnetometers and like, 𝒂𝒍𝒍 the math.

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Kevin Santo Cappuccio @jumperless.org · 20/09/2026

Check it out, I accidentally replaced an 8 bit 1010 RGB with a 16 bit one and turns out it still works. I'm guessing the weird color is because it's taking RRGGBB from 2 LEDs' RGBRGB data. I would've expected there'd be issues with a start frame in the middle but apparently not.

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Kevin Santo Cappuccio @jumperless.org · 26/08/2026

It only counts as real pizza if it's flat to within +/-.000030"

Cooking pizza on a precision 80lb granite surface plate

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Kevin Santo Cappuccio @jumperless.org · 23/08/2026

There's also a similar thing called a Body Snatcher that "snatches" the most negative voltage from the input and uses it to power the MOSFET body. The difference here is it's doing it in real time instead of charging a floating gate capacitor. www.falstad.com/s.php?s=KdqHJf

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Kevin Santo Cappuccio @jumperless.org · 23/08/2026

I found these 64 channel HV analog switches that don't need HV in, but turns out they can't pass DC because they harvest power from the signal to charge a floating gate for the MOSFETs. It's such a wild circuit I had to make it in Falstad to get it on a vibez level. falstad.com/s.php?s=uLEHuT

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Kevin Santo Cappuccio @jumperless.org · 23/08/2026

Okay whatever AI they're using to fill out fake employees in Shenzhen is a friggin' comedic genius.

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Kevin Santo Cappuccio @jumperless.org · 22/08/2026

I don't want the card edge bit sticking out too much for aesthetic reasons, so I'm resin printing the boards and putting chalky marker on them to figure out the absolute bare minimum length that will still grab the board and make contact. I welcome the roast by @cursed-connectors.bsky.social

a pile of resin printed boards and real pcbs

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Kevin Santo Cappuccio @jumperless.org · 22/08/2026

Me telling people how to use KiCad: "Just make your own footprints it takes like 2 seconds" Me actually using KiCad: 3 days and 8 printed mockups in for a single cursed 2x35 pin header / card edge footprint.

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Kevin Santo Cappuccio @jumperless.org · 10/08/2026

I may have overestimated how load-bearing this image is

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Kevin Santo Cappuccio @jumperless.org · 09/08/2026

I SELL THESE I WILL HELP YOU MAKE THESE

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Kevin Santo Cappuccio @jumperless.org · 04/08/2026

Check out my state-of-the-shit-I-had-laying-around vodka-cooled resin curing system. DMs are open, investors.

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Kevin Santo Cappuccio @jumperless.org · 03/08/2026

And the coolest part: the top surface is a replaceable protoboard PCB. So you can breadboard something, then if you want to keep it, solder everything in place and pull it off as a permanent PCB and just put on a fresh "Wig."

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Kevin Santo Cappuccio @jumperless.org · 03/08/2026

If you're wondering what I'm cooking here, it's a new thing I'm super hyped on. It's like a regular breadboard BUT: 6 holes so you can put double row headers in the middle aligned power rails a 70 pin card edge connector on top mapped to the rows (for adding a Jumperless-as-a-module or whatever)

Ignore the weirdness, the countersunk holes will be ENIG plated

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Kevin Santo Cappuccio @jumperless.org · 03/08/2026

I think Sam underestimated my willingness to turn my house into a Superfund site if it means I can sanity check models as I design them. This was a 12 minute print (plus half an hour of living in goo land.)

The spring clips fit (the ones I'm having made will have 6 holes instead of 5)

The old barnacle board, it's close enough

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Kevin Santo Cappuccio @jumperless.org · 03/08/2026

@settinger.net missed his monthly appointment to tell me not to buy a resin printer so I did. These things friggin' rule (for the kinds of things I tend to make) But I also see why the washing and curing stuff is such a big deal, my tupperware full of vodka and 3 UV flashlights aren't gonna cut it.

Messy desk with 3 uv flashlights and a tupperware of vodka

The spring clips fit (they will have 6 holes though)

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Kevin Santo Cappuccio @jumperless.org · 07/07/2026

I bought this stop motion armature as a source of ball and socket joints and made a huge mistake by putting it together. It is now a friend so I need to get another one to harvest for linkages.

040

Kevin Santo Cappuccio @jumperless.org · 23/04/2026

This was my super janky setup just to check if it would work at all

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Kevin Santo Cappuccio @jumperless.org · 14/04/2026

Oh yeah ha. I should probably mention that. The reason is it replaces the existing LED wishbone board that's already on there. They don't make reverse mount 1x1mm LEDs so have a separate board to light up the logo and nano header, and it catches the light that bounces back to light up the text.

The original stock wishbone board installed with the PSRAM mod version above it

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Kevin Santo Cappuccio @jumperless.org · 13/04/2026

If you preordered one of these, I should have them out todayish. Turns out they're easier to install than I thought, but I'll have a link to the instructions on the product page before they get to you. shop.jumperless.org/products/ala...

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Kevin Santo Cappuccio @jumperless.org · 13/04/2026

It still blows my mind you can get a 1mm working height pogo pin.

Don't judge my soldering around the flash chip, I did this from arm's length through a camera

both sides of the wishbone replacement LED boards

1mm pogo pin making contact with a pad that is repurposed from being one of the arduino reset lines into the CS pin on the PSRAM

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Kevin Santo Cappuccio @jumperless.org · 13/04/2026

The ALASKAN BULL WORM! PSRAM Mod kits are in. I was worried about the fit around that flash chip but the vibes-based clearance was so on point you could probably get away with just friction fitting them.

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Kevin Santo Cappuccio @jumperless.org · 07/04/2026

Idk what to call it, it’s like a Matrix Mixer (but cooler because the backend is a Jumperless) with an insane array of 50 3-axis magnetometers so you can plug in knobs or springy door stoppers or Space Mice into the jacks and to control stuff. The functionality is kinda falling out of the design

Kicad screenshot with magnetometers highlighted

Power nets highlighted because it looks cool

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Kevin Santo Cappuccio @jumperless.org · 03/04/2026

**Refuses to elaborate further (but mostly because I have no idea wtf this thing will actually do yet)**

A 20HP eurorack module with a crazy number of RGBs, 60 jacks, and 5 knobs.

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Kevin Santo Cappuccio @jumperless.org · 25/03/2026

ALASKAN BULL WORM update: They look sick af.

"Welding sample" of a single Jumperless PSRAM Mod board

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Kevin Santo Cappuccio @jumperless.org · 19/03/2026

I use @elecrow.bsky.social for any production stuff and I will shill them endlessly. They've saved me from my own stupidity quite a few times.

Elecrow telling me I made a hole too small.

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Kevin Santo Cappuccio @jumperless.org · 19/03/2026

I love how fabs have such low self-esteem. They'll be like, "hey those silkscreen features are too tiny, our terrible process will turn them into mush" and you say "that's fine, just try your best" and then they fucking nail it every time.

A panel of Alaskan Bull Worm PSRAM mod boards

A panel of Alaskan Bull Worm PSRAM mod boards, but the other side

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Kevin Santo Cappuccio @jumperless.org · 19/03/2026

omg it's soo expensive, like $1200 in setup fees. But if like 1000 people wanted a physical hardware shitpost it wouldn't be too bad

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Kevin Santo Cappuccio @jumperless.org · 19/03/2026

This is my worst and favorite idea I've had in a while.

A random 555 circuit whose only purpose is to be a shitpost

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Kevin Santo Cappuccio @jumperless.org · 19/03/2026

I finally found a use for 32 layer PCBs

A 32 layer PCB built sideways with blind vias and fills for tracks

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Kevin Santo Cappuccio @jumperless.org · 13/03/2026

I really need to stop reading peoples' comments, they keep giving me horrible ideas. Please direct all blame for this one to @aryafairywren.bsky.social

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Kevin Santo Cappuccio @jumperless.org · 12/03/2026

wtf, I still have 0.005 mm clearance!!1!

Me being dumb and making the footprint exactly to the datasheet and not leaving room for through hole plating.

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Kevin Santo Cappuccio @jumperless.org · 12/03/2026

I figure y'all would want this footprint so I'm making it worse before I put it up on GitHub

Goatse SMD footprint but with arcs and silkscreen cutout

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Kevin Santo Cappuccio @jumperless.org · 12/03/2026

This is @joeycastillo.bsky.social's fault

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Kevin Santo Cappuccio @jumperless.org · 11/03/2026

Which footprint should I use here? Yes.

0402 through 1812 footprints stacked on top of each other.

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Kevin Santo Cappuccio @jumperless.org · 09/03/2026

For reference, these are the layers on a Jumperless. It's weird that it looks only slightly more complicated even though there's orders of magnitude more shit going on.

Kicad screenshot with all layers visible and no fills

060

Kevin Santo Cappuccio @jumperless.org · 09/03/2026

It's crazy how much routing it took to make this silly little SMD breakout. Like, it feels wrong somehow.

back of the SMD barnacle, with random pads strewn around

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Kevin Santo Cappuccio @jumperless.org · 26/02/2026

Son of a bitch, My Pillow guy's selling energy drinks called Rev 7 (the latest Jumperless hardware revision is called V5 Rev 7.)

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Kevin Santo Cappuccio @jumperless.org · 23/02/2026

I forked Viper IDE to fix a few things that bugged me, but of course I had to be super extra about it and make clicking any function bring up the docs, and threw in a little OLED bitmap editor for good measure. So now it's Jumper IDE and it is friggin' rad

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Kevin Santo Cappuccio @jumperless.org · 22/02/2026

Sourdough, motherfuckers! The sudden switch from "hey it's an edible wheat slurry" to "this is the most delicious thing I've ever eaten" must've killed the first like five ancient people to invent bread making.

The most delicious loaf of sourdough bread ever made (by me)

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Kevin Santo Cappuccio @jumperless.org · 12/02/2026

I am the intermediate mass black hole at the center of the Maker Hardware Workshop globular cluster.

Me at the center of "Maker Hardware Workshop"

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Kevin Santo Cappuccio @jumperless.org · 08/02/2026

I know I did like, a full-on Doom port a while back, but for some reason playing Snake on top of a running circuit is equally exciting.

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Kevin Santo Cappuccio @jumperless.org · 06/02/2026

Here's what it looks like from the side

looking down the tube of a 45º infinity mirror

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Kevin Santo Cappuccio @jumperless.org · 06/02/2026

@alpenglow.bsky.social got me wondering if it's possible to do an infinity mirror with a 45º bend in it. Turns out it totally is. (There were much easier ways to validate this that don't involve an overnight render)

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