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joey castillo

@joeycastillo@mastodon.social
mastodon 4.8.0-nightly.2026-10-06
  • Open on mastodon.social

texan by birthright, but not like this.
purveyor of Oddly Specific Objects.
he/him/🏳️‍🌈 if it helps.

3843 Followers
658 Following
50 Posts
Joined January 05, 2018
Objects:
https://www.oddlyspecificobjects.com
Words:
https://www.patreon.com/joeycastillo
Book:
https://theopenbook.is
Watch:
https://www.crowdsupply.com/oddly-specific-objects/sensor-watch
Open post
joey castillo @joeycastillo@mastodon.social
· 3mo ago
AT LONG LAST! Open Book Touch is LIVE on @crowdsupply@hachyderm.io! I'll have a LOT more to share soon, but for now I'll just say this: literacy is arguably the original technology. The written word and its ability to share ideas across continents and centuries, changed our minds forever. We shouldn't cede that tech to the billionaires and the bastards. We deserve open source e-book hardware, and I want to make it happen. https://www.crowdsupply.com/oddly-specific-objects/open-book-touch/updates/six-years-in-the-making-open-book-touch-is-here
Six Years in the Making, Open Book Touch Is Here!
Crowd Supply

Six Years in the Making, Open Book Touch Is Here!

The slim, pocketable, fully open source e-reader I've been chasing for six years is real, and as of today it's live on Crowd Supply.

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Open post
joey castillo @joeycastillo@mastodon.social
· 2mo ago
shot/chaser
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Open post
joey castillo @joeycastillo@mastodon.social
· 2mo ago

passed by a restaurant in the Mission yesterday calling itself "Hamburger Project." Also noticed that the space next door was for lease — which would make it the perfect spot for a Side Project.

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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

Fake ad in the print edition; The Onion doesn’t miss.

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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago
I really wanted to run this Feather Low Energy board until its 350 mAh battery died. But I set it over a year ago and it’s gone through a spring forward, a fall back and another spring forward. The rubber band holding the battery on has dried out and cracked. The battery itself? Still sitting at 4.01 volts. Alas, I have to do some dev work, so I’m going to have to plug it in. But I can say at least that it’s low power enough.
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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

Mildly interesting: walking out of a play the other night, one of the giant video walls in Times Square was cycling through various test patterns.

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to
In the interest of open culture (and in recognition of the fact that I’m not going to have time to reprint and sell these myself), I’m committing this design to the commons: print ‘em if you want ‘em, share ‘em if you get ‘em! /cc @klardotsh@merveilles.town @maniaclives@mastodon.world @voltagex@aus.social @occult@vox.ominous.net @apaleslimghost@cathode.churchhttps://github.com/joeycastillo/slop-sign
GitHub

GitHub - joeycastillo/slop-sign: design for a sticker

design for a sticker. Contribute to joeycastillo/slop-sign development by creating an account on GitHub.

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Open post
joey castillo @joeycastillo@mastodon.social
· 3mo ago

inside you there are two wolves. (both of them are powered by AI)

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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

every day we stray further from god's light

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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

they say to travel lightly through life, but they never had to fly 85 pounds of books to Berlin for @oshwassociation@mastodon.social summit

mastodon.social

OSHWA (@oshwassociation@mastodon.social) - Mastodon

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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

At last, it's done! For the @oshwassociation@mastodon.social summit here in Berlin, I had the opportunity to put an item in the swag bag. So I made a whole-ass book. “The Last Promontory” is seven writings from the early twentieth century, and it's been so gratifying to see folks reading it around the conference. If you're not here, no for you need to feel left out! OSHWA is all about open source: open hardware, open culture, which is all to say I put the book online as well: https://thelastpromontory.com

thelastpromontory.com
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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Boosted by @ferrix@mastodon.online
this is going to be vague, but I don't know how to offer details without explaining everything, which would take a lot more words than I have available on a platform like this. in short though: Open Book Touch is going to blow your freaking mind straight out the back of your head. Even if you know to expect it, I promise: you may think you're ready, but you're not. Watch this space. https://www.crowdsupply.com/oddly-specific-objects/open-book-touch
Open Book Touch
Crowd Supply

Open Book Touch

A pocketable, front-lit, open source e-reader — for every book, in every language

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Open post
joey castillo @joeycastillo@mastodon.social
· 2mo ago

This is not shade, this is just my truth. I really hope Lindsey Graham died doing what he loved: getting absolutely railed by a hot young escort a quarter his age.

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Open post
joey castillo @joeycastillo@mastodon.social
· 2mo ago
Replying to
There was some confusion on the backend about the imagery for the post, but this is that lovely Brokeback Mountain content demonstrating the feature set
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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

“Twelve months ago, we'd have rejected out of hand the idea of granting Claude access sufficient to take down an internal Anthropic service. Today that level of access is routine.” https://www.anthropic.com/engineering/how-we-contain-claude

anthropic.com
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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago
Replying to
I’m actually surprised that 1,200 corner punches only amount to this. (also now that I have a corner punch, I am going to round the corners of every rectangle of paper I meet)
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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago

on a bit of an early 20th century short fiction deep dive. Wandered to the neighborhood pizza spot for dinner and a read of Jack London’s “To Build a Fire,” and emerged to this:

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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago
Wow. Just discovered that I'm spotted by seven Flock cameras on my daily bike ride. 🤮 https://stopflock.com
stopflock.com

Stop Flock

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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago
Boosted by @ferrix@mastodon.online
Replying to
19 down, 1,181 corner punches to go.
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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

if you don't give me an opt-out mechanism, don't imagine that I have opted in. imagine that I am finding my own way out, saying "fuck you" the whole time and singing about it from the rooftops.

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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

“Moral reasoning develops through consequences—not punishment, necessarily, but experiencing the effects of your actions on others… It’s not that the wealthy become evil; it’s that their environment stops teaching them the things that nonwealthy people are forced to learn simply by living in a world that pushes back. [For billionaires], the basic mechanism by which humans learn that other people are real goes dark.”
https://www.theatlantic.com/magazine/2026/05/billionaire-consequence-free-reality/686588/

What I Learned About Billionaires at Jeff Bezos’s Private Retreat
The Atlantic

What I Learned About Billionaires at Jeff Bezos’s Private Retreat

For the richest men on Earth, everything is free and nothing matters.

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago

open book book cover work (in progress)

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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

every time I read about large language models making breakthroughs in frontier research, I'm reminded of this short essay by Ted Chiang. (link is to an OpenAI press release; full essay is in the image) https://openai.com/index/model-disproves-discrete-geometry-conjecture/

openai.com
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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

You do not have to be good.
You do not have to walk on your knees
for a hundred miles through the desert repenting.
You only have to let the soft animal of your body
love what it loves.
https://www.best-poems.net/mary_oliver/wild_geese.html

best-poems.net
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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago

as a purveyor of emails at scale, I do not believe you when you claim to hope that this email finds me well. I would be surprised if you hoped for anything beyond this email finding me at all, and even that's a stretch.

For my part: I hope your email does not find me.

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago

“Register now” / “I’ll do this later”

where is the “I will never do this” button?

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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago

“a blackmail rate near zero” https://www.anthropic.com/research/teaching-claude-why

anthropic.com

Teaching Claude why

New research on how we've reduced agentic misalignment

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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago
Replying to
Fuck me, this book slaps. https://standardebooks.org/ebooks/yevgeny-zamyatin/we/gregory-zilboorg
standardebooks.org

We, by Yevgeny Zamyatin. Translated by Gregory Zilboorg - Free ebook download - Standard Ebooks: Free and liberated ebooks, carefully produced for the true book lover

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Open post
joey castillo @joeycastillo@mastodon.social
· 6mo ago
Boosted by @ferrix@mastodon.online
“The Machine develops — but not on our lines. The Machine proceeds — but not to our goal. We only exist as the blood corpuscles that course through its arteries, and if it could work without us, it would let us die.” - E. M. Forster, ‘The Machine Stops’
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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago

All I do is build, build, build no matter what!
Deployment on my mind, I can never get enough.
As soon as I step up in the building,
everybody's sites go DOWN (down? Down.)

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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago
Replying to
Penned 1924: “To kill one, that is, to reduce the general sum of human life by fifty years, was considered criminal, but to reduce the general sum of human life by fifty million years was not considered criminal! Is it not droll? Today this simple mathematical moral problem could easily be solved in half a minute’s time by any ten-year-old! It didn’t enter the heads of all their Kants to build a system of scientific ethics, that is, ethics based on adding, subtracting, multiplying and dividing.”
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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago

RE: @prcutler@hachyderm.io

Check this out when it goes live — these are two of my students!

hachyderm.io

Paul Cutler: "Coming Monday on a new episode of The CircuitPyth…" - Hachyderm.io

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago

EDIT: Solved! Thanks to @projectgus@aus.social and @mnl@hachyderm.io for pointing me in the right direction. @joeycastillo@mastodon.social

PREVIOUSLY: desperate plea for help from any #circuitpython oriented folks: I've purchased a bunch of ESP32-S2 Reverse TFT Feather boards (S2, not S3) for my students' assignment 3, but any attempt to initialize audioio.AudioOut, even for the most basic example, is met with an error:

RuntimeError: Failed to create continuous channels: not found

aus.social

Gus (@projectgus@aus.social) - Aus.Social

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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago

whilst packing and tidying up before the OSHWA trip I ran across my original concept art for this thing, sketched two months ago when it was just a lark.

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to
@todbot@mastodon.social @mnl@hachyderm.io @projectgus@aus.social Thanks so much for y'alls help, I've confirmed pwmio beeps and bloops work great, and if I use the non-TFT version of the firmware, I can actually use the DAC (which as you point out isn't the best quality at 8 bits, but does give the students options for which direction they want to go). Assignment saved!
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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago

when you’ve got ‘em by the vibes, their hearts and minds will follow

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Open post
joey castillo @joeycastillo@mastodon.social
· 3mo ago

and Claude Omnibus said, “LET THERE BE LIGHT!” And there was light —
https://samwilkinson.io/posts/2026-06-09-anthropics-model-naming-extrapolated

samwilkinson.io

Anthropic's Model Naming, Extrapolated · Sam Wilkinson

With the release of Claude Fable, it is clear that Anthropic is progressing from poems to enterprise-scale narrative objects.

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to
@fluidtoons@mastodon.art Sticker Guy is fantastic! Always love their work and quality is top notch. They don’t do split backs, at least on the 1- or 2-color vinyl stickers that I buy, but they make up for it by being super cheap! You’ll get a ton of stickers for not that much money, and you probably won’t mind peeling the backs. https://stickerguy.com/cheapest-prices/
Sticker Guy!

Low Prices for High Quality Custom Vinyl Stickers - STICKER GUY

Sticker Guy offers high quality custom vinyl stickers for indie bands and small businesses at the lowest prices you'll find anywhere!

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to
@mmezabet@craftgoblin.club Yooo, I love these! And hell yeah to Sticker Guy, always stoked to sing their praises :)
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Open post
joey castillo @joeycastillo@mastodon.social
· 4mo ago
Replying to
@dlx@mastodon.social I am, at the Open Hardware Summit taking place at TU Berlin!
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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to

@todbot@mastodon.social Thanks! Yea unfortunately it seems like an either/or on the TFT Feathers, at least for the S2. Setting up the TFT first, the DAC fails as above; setting up the DAC first, I get "RuntimeError: SPI configuration failed." I'm guessing this probably hasn't come up yet, since the DAC wasn't available at all on the S2 until recently. Either way the good news: on the standard firmware build, doing a displayio.release_displays() before setting up AudioOut is a one-line fix, so it's all good :)

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to
@mnl@hachyderm.io @projectgus@aus.social Thanks for y'alls help, this pointed me 100% in the right direction. Flashing the non-TFT version, I am able to use the DAC, which points to something about the display and DMA. But also the errata note suggests that I can salvage the assignment with pwmio and more beepy output while I look into the DMA issues. THANK YOU BOTH!!!
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Open post
joey castillo @joeycastillo@mastodon.social
· 5mo ago
Replying to
@twilliability@genart.social I feel like Aliexpress is pretty good for this, search something like "16pin tn lcd" (TN for twisted nematic, the old school segment type) and there are lots. I like this one, this is one I used for a SAO at Hackaday Supercon a couple years back: https://www.aliexpress.us/item/3256811459975665.html
aliexpress.us
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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to
@orangeacme@fosstodon.org recognizing the glitch as the values 0x00, 0x55, 0xAA and 0xFF was the hint I needed to realize I was pushing grayscale values in a one-bit mode.
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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to
@Mikal@sfba.social ironically this could literally cause Teslas to plow into pedestrians. https://www.thedrive.com/news/teslas-can-be-tricked-into-stopping-too-early-by-bigger-stop-signs
Teslas Can Be Tricked Into Stopping Too Early by Bigger Stop Signs
The Drive

Teslas Can Be Tricked Into Stopping Too Early by Bigger Stop Signs

Tesla owners are saying that the size of stop signs affect where their vehicles are stopping at an intersection.

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Open post
joey castillo @joeycastillo@mastodon.social
· 7mo ago
Replying to
@projectgus@aus.social no worries, good to check these things! A look at the board definition confirms it, A0 is GPIO18, and looking further at the internals, this message seems to come from dac_continuous_new_channels returning ESP_ERR_NOT_FOUND, so I'm chasing into Espressif internals next. https://github.com/adafruit/circuitpython/blob/77c17696e5be01d40b78d5cbe157539d733af73a/ports/espressif/common-hal/audioio/AudioOut.c#L480
GitHub

circuitpython/ports/espressif/common-hal/audioio/AudioOut.c at 77c17696e5be01d40b78d5cbe157539d733af73a · adafruit/circuitpython

CircuitPython - a Python implementation for teaching coding with microcontrollers - adafruit/circuitpython

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