Waveshare CM4 Case with GPIO #3DThursday #3DPrinting

Shared by Rasmussen on MakerWorld:

A redesigned enclosure for the Waveshare CM4 IO board with Raspberry Pi 4 Compute Module, adapted to allow full GPIO connector access. Integrated 40mm fan design blows air across the top, around the sides, and out the bottom for effective cooling. Alternative Pi enclosure form-factor for those running Compute Module builds.

Download the files and learn more

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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

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3D Printer Electronics Enclosure V4 – Modular Controller Box #3DThursday #3DPrinting

jonbourg shares:

A large modular electronics enclosure for 3D printers, big enough (depending on controller board size) to hold the controller board, a Raspberry Pi, and other electronics. Long-running community project. Alternative for the electronics/enclosure block. By jonbourg (Thingiverse)

download the files on: https://www.thingiverse.com/thing:4615105

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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

LIVE CHAT IS HERE! http://adafru.it/discord

Adafruit on Instagram: https://www.instagram.com/adafruit

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

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Bambu LED Kit Desk Lamp – 6-Piece Support-Free Base #3DThursday #3DPrinting

novera shares:

A simple table lamp for the Bambu Lab Kit 001, with a 6-piece base designed to avoid all supports during printing. Shade prints in vase mode. Intuitive assembly with a little glue. Alternative lamp for the Bambu LED Kit block. By Novera

download the files on: https://makerworld.com/en/models/580960-bambu-led-kit-desk-lamp

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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

LIVE CHAT IS HERE! http://adafru.it/discord

Adafruit on Instagram: https://www.instagram.com/adafruit

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

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Articulated Pumpkin Spider #3DThursday #3DPrinting

Remix by Mythmarco:

A spooky-cute remix pairing a Blender-designed pumpkin head with an articulated spider body. AMS and No-AMS variants. Orange PLA for the pumpkin, black PETG for the spider frame (recommended for strength). Snap-together legs, no supports, brim needed for the pumpkin head. By Mythmarco

download the files on: https://makerworld.com/en/models/1761813-articulated-pumpkin-spider

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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

LIVE CHAT IS HERE! http://adafru.it/discord

Adafruit on Instagram: https://www.instagram.com/adafruit

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

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JP’s Product Pick of the Week 8/4/26 @adafruit @johnedgarpark #adafruit #newproductpick

This week’s pick is the Adafruit High Power Infrared IR LED Emitter – STEMMA JST PH 2mm! Watch the video for a live demo and more.

Want more JP’s Product Pick of the Week?! Tune in every Tuesday at 4pm ET and 1pm PT on Youtube LIVE, Twitch, Periscope (Twitter) and Facebook. LIVE TEXT CHAT IS HERE in the Adafruit Discord chat!

Catch previous editions on YouTube and don’t miss our gift guide

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500th Humpback Whale Identified in NYC Waters

Gotham Whale‘s communications director Chris Saint Lawrence spoke to WNYC’s Sean Carlson about humpback whales in NYC waters. Listen to the story here and get involved with Gotham Whale’s citizen science program:

When you’re near or on the water in the New York Bight, keep an eye out for marine mammals. If you spot a whale, dolphin, or seal, submit your sighting using the data collection form below. Please be as specific as possible; your detailed information is crucial for our database records and ongoing research efforts. Join us in protecting and understanding these incredible creatures!

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Negative electrical resistance

Michal Zalewski on the lcamtuf’s thing website writes:

If you tinker with analog electronics, you might have heard that some circuits can exhibit negative resistance. This is usually followed by a current-to-voltage plot featuring some sort of a kinked curve and an assertion that this property might help the circuit designer in some way.

But what does it mean, exactly? The concept of negative resistance is interesting, counterintuitive, and explained on Wikipedia in a rather rambling way.

Check out the conditions where this is present in the post here.

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15 Outdoor Art Shows to See in NYC This Summer

Moko Fukuyama, “Old School” (2026), aluminum boat, reclaimed wood, plywood, automotive paint (photo Timothy Schenck; courtesy the artist and Public Art Fund, NY)

15 Outdoor Art Shows to See in NYC This Summer via hyperallergic

You know what they say: When the heat, and smoke, and floods go away, New York comes out to play. It’s finally time, and you’ve more than earned it. We’ve put together a playlist of sorts, one that takes you to islands, beaches — even bus shelters — across all five boroughs.

See the city through a different lens via giant kaleidoscopes in Pelham Bay. Have yourself a game of ping-pong on artist-designed tables at Rockaway Beach. Get a little intimate with a massive teddy bear in a courtyard in Queens. Get weird with a neural network’s hallucinations in a Midtown sculpture garden. Frolic on Governors Island, my personal paradise. And if you find yourself craving a little AC, check out our list of 30 indoor exhibitions to see this summer.

It’s the best time of year on the best city on earth. Live a little!

Check out their full list!

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Byte Magazine’s “Technological Breakthrough” cover re-created as a photograph #ArtTuesday

Bob Alexander at  Galactic Studios has been recreating Robert Tinney’s Byte magazine paintings as photographs.

The latest work is “Technological Breakthrough”.

Byte’s January 1986 issue had a focus on robotics. Mr. Tinney painted a robot claw hatching out of an egg. As I’ve done with several other Byte covers, I re-created Tinney’s vision as if it were real, and as if a photographer had been standing next to Tinney as he painted.

This was an obvious cover to re-create since Tinney had, eight months earlier, used the same claw design in a painting I had already re-created.

Or at least, so I thought. In my initial test photographs, I realized that the claw in Tinney’s Intelligent Reflections cover was much larger, in proportion to its “wrist”, than the claw in Technological Breakthrough. I had to either redesign and re-manufacture the claw, or Photoshop it. I chose to do the latter.

See this work on Bob’s site here.

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The world’s first watch featuring computer functions

The world’s first wrist computer system, released in 1984, consisted of a Seiko watch part and a separate “controller” console with a built-in printer.

The user could input BASIC programing with a keyboard (sold separately) and enjoy playing games. It also included a memo function, a telephone directory, an address book, and a scheduling function.

A separately-sold pocket-sized keyboard allowed operation on the go. The watch, controller, and keyboard were all box-shaped with straight lines for a unified style. The contrasting light and dark two-color gray base was accented with orange buttons.

See more on Seiko Design and namoki.

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NeoPixel Arcade Buttons

The 30mm arcade buttons in the Adafruit shop are excellent for retrogame projects. They’re also quite aesthetically pleasing. They feature a translucent body with a very slim micro switch, so it’s great for internal lighting effects.

Although they do not have LEDs built in, you can actually fit NeoPixels into the body with a 3D printed diffuser.

In this tutorial you’ll learn how to add NeoPixels to arcade buttons. Check out the full guide!

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Overwatch Prop Gun: Lucio’s Blaster #AdafruitLearnGuide

Print and assemble the Overwatch Lucio blaster with this three-part guide from John Park:

Overwatch Prop Gun: Lucio’s Blaster Pt. 1 – Lights, music, and sound effects prop circuit design

Overwatch Prop Gun: Lucio’s Blaster Pt. 2 – Lights, music, and sound effects prop circuit integration

Overwatch Prop Gun: Lucio’s Blaster Pt. 3 – Permanent circuit, 3D printing, and final assembly

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Adafruit Weekly Editorial Round Up: ESP32-S31 now in mass production, Jimothy & more!

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ADAFRUIT WEEKLY EDITORIAL ROUND-UP

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We’ve got so much happening here at Adafruit that it’s not always easy to keep up! Don’t fret, we’ve got you covered. Each week we’ll be posting a handy round-up of what we’ve been up to, ranging from learn guides to blog articles, videos, and more.

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ESP32-S31 now in mass production and available for purchase

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Moon Flight Tracker

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Jimothy

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Catch up with us on our blog, in our learn system, or on YouTube.

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National Coloring Book Day 2026

It’s National Coloring Book Day so now is the time to power up your pencils and let your creativity run wild! Whether you’re de-stressing or doodling with the littles, coloring is for everyone.

Did you know Adafruit has its own? Check out Ladyada’s Coloring Book – R is for Robots!

You can also get instant color joy, zero shipping required with the available download from the product page. More free coloring book templates from Crayola, The Smithsonian and the Bronx Zoo!

 

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August is Back to School Month here at Adafruit! Each week we’ll be bringing you #BackToSchool content! Stay tuned for product and gift guides, tutorials from the Adafruit Learning System, and inspiration from around the web! Get started by checking out Adafruit’s educational resources, such as our kits and project packs, suggested products for young engineers, blog posts for educators and an extensive selection of books to help you learn!

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Star Wars™: The Experience at The Franklin Institute Philadelphia

Star Wars: The Experience – A Journey Through the Galaxy will be making its exclusive world premiere at The Franklin Institute in Philadelphia in February 2027. The exhibition will feature immersive environments, props, and original costumes.

The all-new exhibition traces the legacy of Star Wars from its handcrafted beginnings to today’s groundbreaking digital frontiers, exploring everything from sound design and creature creation to fan art and collectibles. It charts the evolution from analog ingenuity to digital reinvention and highlights the voices of early makers and the current global fandom, uncovering the creativity, craftsmanship, and community that make Star Wars a timeless treasure.

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That Project: A Standalone Rubik’s Cube Solver

That Project made a screenless, standalone ESP32-S3 Rubik’s cube solver and shared the project on YouTube:

This is a fully handheld, offline Rubik’s Cube solver powered by an ESP32-S3. It scans the cube using a built-in camera, detects colors with OpenCV, allows manual touch correction via an LVGL UI, and guides you through the solution step-by-step on a 2-inch LCD screen—all without needing a phone, cloud, or PC.

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August is Back to School Month!! #BackToSchool #BackToSchool2026

Don’t get fooled by the pleasant weather, more heat and rain are on the way. It won’t be long, though, before false fall to come knocking, bringing shorter days and…a new school year approaching!

August is Back to School Month so join us and get prepared for another scholastic voyage into the school year.

We want to share some helpful tools with you. We will be posting informative articles on our blog along with hand picked gift guides.

If you want to get started ASAP; for teachers we have our Educators hub and the For Educators forum! And for learners of every level we have the Adafruit Learning System

Keep track of specialized guides dropping later this month

 

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August is Back to School Month here at Adafruit! Each week we’ll be bringing you #BackToSchool content! Stay tuned for product and gift guides, tutorials from the Adafruit Learning System, and inspiration from around the web! Get started by checking out Adafruit’s educational resources, such as our kits and project packs, suggested products for young engineers, blog posts for educators and an extensive selection of books to help you learn!

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Gridfinity Resistor Bin – 7 Resistor Types Raspberry Pi 5 Case – 10 Variants for Active Cooler + NVMe #3DThursday #3DPrinting

3DFreeman shares:

Ten Pi 5 case designs in two halves (top/bottom), all derived from the same blank template so parts mix and match — pair any top design with a vented bottom, or vice versa. Fits the official Active Cooler and NVMe base. December 2025 update reduced top-part screw hole to 2.79mm for better grip. By 3DFreeman

download the files on: https://makerworld.com/en/models/1543062-raspberry-pi-5-case-fits-active-cooler-nvme

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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

LIVE CHAT IS HERE! http://adafru.it/discord

Adafruit on Instagram: https://www.instagram.com/adafruit

Shop for parts to build your own DIY projects http://adafru.it/3dprinting

3D Printing Projects Playlist:

3D Hangout Show Playlist:

Layer by Layer CAD Tutorials Playlist:

Timelapse Tuesday Playlist:

Connect with Noe and Pedro on Social Media:

Noe’s Twitter / Instagram: http://instagram.com/ecken

Pedro’s Twitter / Instagram: http://instagram.com/videopixil

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LIVE NOW! SHOW and TELL 7/29/2026 with @ecken #ShowandTell @adafruit

The biggest and longest running worldwide online Show and Tell LIVE! Right now! 7/29/2026 at 7:30pm Eastern.

Hosted this week by Noe Ruiz

To show and share a project at 7:30pm Eastern today, view the chat or in discord https://ift.tt/FnTGQNp and look for the JOIN link to join. For best results, be on a wired network connection and use a headset and microphone.

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Running a 28.9M parameter LLM on an $8 microcontroller

Slava S. on GitHub has a 28.9 million parameter language model that generates text on an ESP32-S3, a microcontroller that costs about $8.

It runs on the chip itself, with nothing sent to a server, and it writes each word to a small screen wired to the chip at roughly 9 tokens per second.

The last language model people ran on a chip like this had 260 thousand parameters, so this one holds about a hundred times more. It fits because most of the model lives in flash instead of RAM, using an idea from Google’s Gemma models called Per-Layer Embeddings.

The way around it is to stop putting the model in fast memory at all. Most of a language model’s parameters sit in an embedding table, which the model reads from rather than computes on. So you can leave that 25 million row table in slow flash and pull only the few rows each token needs, about 450 bytes, while the small part that does the actual work stays in fast memory. The large model then costs almost nothing to run, because you never load most of it. It just sits in flash and gets sampled a little at a time.

That idea is Google’s Per-Layer Embeddings, from Gemma 3n and Gemma 4. Here it runs on the memory layout of a microcontroller instead of a phone or a GPU. As far as I can tell, nobody had tried it on a chip this small.

  SRAM  (fast, tiny)   the "thinking" core, used on every token
  PSRAM (medium)       the output head and working memory
  FLASH (huge, slow)   the 25M-param table, 6 rows per token (~450 B)

The model was trained on TinyStories, so it writes short, simple stories and mostly keeps them coherent. It will not answer questions, follow instructions, write code, or know facts. That limit comes from the small part of the model that does the reasoning.

See more on this MIT licensed project on GitHub.

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