iiinova — where your digital self keeps evolving

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

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

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

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

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 · 21/08/2026

Of all the questions I completely blanked on, the only one I actually regret is my favorite fictional robot. I could've had an existential crisis choosing between Daneel, Bender, and the sentient coin-op door lock from the beginning of Ubik.

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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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Reposted by Kevin Santo Cappuccio

Sam Ettinger @settinger.net · 04/08/2026

I missed my monthly "don't buy a resin printer" meeting with @jumperless.org because I was hand-soldering a 3×2mm WS2811 IC to a flex PCB. If you want a Neopixel with colors other than RGB, turns out you can just make your own by having a long enough manic episode.

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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

@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.

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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 · 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 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

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 · 18/03/2026

I'm sorry I'm 20 minutes late to show you this very important information: www.youtube.com/watch?v=_qO6...

youtube.com

Bring The Gold

YouTube video by TheRealBradNeely

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Reposted by Kevin Santo Cappuccio

business goose🪿 @goose.art · 10/03/2026

reading jumperless docs, one of the most insane things i have ever seen

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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

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

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

@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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Kevin Santo Cappuccio @jumperless.org · 04/02/2026

Motherfuckin' bread... (secretly half cheese)

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Kevin Santo Cappuccio @jumperless.org · 30/01/2026

I regret to inform everyone that this bit will continue.

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Kevin Santo Cappuccio @jumperless.org · 27/01/2026

I'm considering making an ALASKAN BULL WORM! mod kit for the Jumperless to give it 8MB of PSRAM for Micropython and a better onboard logic analyzer. Like anything I've released as a kit, it will involve committing some heinous PCB assembly crimes.

A replacement LED wishbone board that looks like an Alaskan Bull Worm

A render of the back of a Jumperless V5 with the PSRAM mod kit installed

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Kevin Santo Cappuccio @jumperless.org · 26/01/2026

Jumperless V5 now has a built-in 1960s wallpaper generator! (It's actually showing the physical paths your connections take through the 12 crossbar switches in the same colors they appear on the breadboard)

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Kevin Santo Cappuccio @jumperless.org · 22/01/2026

These beautiful mfs seriously make the greatest hardware “review” show ever; because they’re not actually reviewing anything, it’s just slice-of-life first few hours with a new dev board and omg I’m terrified.

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Kevin Santo Cappuccio @jumperless.org · 19/01/2026

I don't think I've had a reason to solder the probe sense pads on without the breadboard underneath and it looks super weird. (Someone wanted to do dome hardware mods to their Jumperless that'll be a lot easier if I send them one partially assembled)

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Kevin Santo Cappuccio @jumperless.org · 17/01/2026

omg I'm reading this dumb twitter article but can't continue because I'm laughing too hard at this diagram. Like, using this as a definition of an intelligent system then crashing into the fucking rocks because you don't know wtf a lighthouse is.

A diagram of a boat course correcting straight into the rocks

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Kevin Santo Cappuccio @jumperless.org · 11/01/2026

When you scope creep a project so hard you need to draw your board outlines in Fusion 360...

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Kevin Santo Cappuccio @jumperless.org · 10/01/2026

Woo! Just got a box of 200 more Jumperless V5s. These are rev 7, the only real difference is they have 2 friction-fit OLED headers on the main board, so it can sit in that crevice between the Nano headers (or scoot it over to the right if you have something in there that would cover it.)

Quark sniffing some boxes of Jumperlesses

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Reposted by Kevin Santo Cappuccio

Boatplugs @shadylink.lol · 03/01/2026

Wowowow! Husband got me a jumperless for the holidays :o I'm so stoked! What a beautiful piece of hardware that @architeuthisflux.bsky.social has created Excited to shirk my other projects and play with this lol

A photo of the jumperlessV5 breadboard held towards the camera, the box and probe sit on a desk behind the held device.

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Kevin Santo Cappuccio @jumperless.org · 21/12/2025

I was showing my mom the ways of using Adobe's own products against them to get a student discount and this happened

My mom's face overlaid on mine at 50% opacity

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Reposted by Kevin Santo Cappuccio

Carrie (prev of Alpenglow) @alpenglow.bsky.social · 09/12/2025

It's the time of year where I get to show off all the cool things our friends make! Check out the 2025 Alpenglow Gift Guide and find something fun for that electronics nerd in your life (and maybe that's you!) www.alpenglowindustries.com/pages/2025-g...

A tiled array of images showing colorful circuit boards with LEDs in various fibonacci configurations, a cat on it hind legs pawing at something that has an enamaled-pin look, LEDs lit up and shaped like a rainbow, unicorn, and lightning bolt, some small rectangular circuit board LED controllers, a black breadboard with a probe, a book called Skill Seeker, a UFO beaming up a human, a box of GlowStitch LED strips, and a box with diffused red, green, and blue lights on its front.

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Kevin Santo Cappuccio @jumperless.org · 26/11/2025

First one to guess what the hell is going on in this video gets a high five.

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