Raspberry Pi USB-C Gadget mode @Raspberry_Pi

Ben Hardill writes on Ben’s Place about how to configure a Raspberry Pi 4, 5 and Pi Zero to act as a USB Ethernet device for a while now. Starting with Pi Zero in 2017, then Pi 4 and finally for Pi 5 in 2023, used Raspberry Pis configured this way for lots of different things both at home and work.

I noticed a link to the Raspberry Pi Blog that talks about how USB Gadget Mode been added to the default Raspberry Pi OS Trixie version as of January 2026 and can be enabled via the new version of the Raspberry Pi Imager.

See how it’s all done in the post here.

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Brooklyn Pride Day – This Saturday! #Pride2026

Brooklyn celebrates pride all month but this weekend is your chance to really get OUT there. Starting tonight you can catch a game on Coney Island with the Cyclones Brooklyn Pride Night . Then get ready for a day of movement!

Saturday June 13 is Brooklyn Pride Day, begining with the Brooklyn Pride LGBTQIA+ 5K Run/Walk at 10 AM in Prospect Park. Tickets for runners are sold out but spectators can line up along the route!

At 11 AM get going with the Annual Brooklyn Pride Multicultural Festival along 5th Avenue from Union to 9th street

As the sun sets the night heats up with the Annual Brooklyn Pride Twilight Parade

Capping off a full slate of events on Brooklyn Pride Day, the Brooklyn Pride Twilight Parade will take place at 7:30PM along Fifth Avenue from Lincoln Place and Eighth Street. The only evening parade in the Northeast, the street will be filled with organizations showing up to march in support of the amazing and vibrant LGBTQIA+ community.

After the parade, merriment usually spills into restaurant and bars (and might stay in the streets) through the night.

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Two-Layer Gear Fidget Spinner – Dual Independent Rings #3DThursday #3DPrinting

Shared by Joseph on MakerWorld:

A print-in-place planetary gear fidget spinner with a unique dual-ring design — inner and outer rings spin independently. Stop only the inner layer while the outer continues, knurled outer grip, and 15-20 second spin time. Single and 4-band multicolor profiles included

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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ESP32 C3 Super mini case #3DThursday #3DPrinting

Shared by 4Designs on MakerWorld:

A well-tolerance ESP32-CAM enclosure with two front-piece versions for different lens sizes (M2 bolts for the larger lenses), aerial mount for WiFi range, and cutouts for SD card, LED, and USB. Designed by CosmicNimbus for cat cams running through Frigate and Home Assistant

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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A library for turning sensor data into useful motion features

Puara Gestures is a lightweight C++ library for turning sensor data into useful motion features. It is designed for embedded systems and real-time projects that need gesture-style signals from accelerometers, IMUs, touch arrays, and buttons.

What this library gives you

• Jab, Jab2D, Jab3D — simple motion burst detectors for 1, 2, or 3 axes.
• Shake, Shake2D, Shake3D — smooth motion energy tracking for vibration and shaking.
• Tilt and Roll — orientation signals from 9DoF IMU data.
• Tilt_Roll — fast roll/tilt computation using accelerometer data only.
• TouchArrayGestureDetector — brush/rub and swipe-style touch features for sensor arrays.
• Button — tap, double-tap, hold and press tracking from digital button input.
• utils/ — reusable helpers for smoothing, thresholds, mapping, timing, and sensor support.

Why it is useful

This library is made for people who want meaningful sensor features, not raw numbers. Instead of reading raw acceleration or touch values, you can get:

• a jab intensity score
• shake energy that grows with movement and decays smoothly
• tilt and roll values ready for gesture use
• touch brush/rub metrics
• button interactions like taps and holds

This MIT licensed project is on GitHub.

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Reverse engineering the TI-84 Plus OS

Ben Siraphob is currently working on a reproducible Ghidra reverse-engineering project for the TI-84 Plus calculator OS (version 2.55MP), a Zilog Z80 system.

A Z80 (64 KiB address space) with hardware paging maps flash page 0 at 0000 (the kernel: RST vectors, the bcall dispatcher, FP/VAT/memory core) and swaps other 16 KiB flash pages into 4000 on demand. Code reaches routines on other pages via bcalls (rst 28h + a 2-byte ID resolved through a jump table on flash page 0x3B).

The OS is a single-tasking context machine: a main event loop runs the active context’s handlers, switching contexts by key. All arithmetic flows through a 9-byte BCD floating-point engine (OP1–OP6); named objects live in the VAT; TI-BASIC is stored as 1/2-byte tokens executed by the parser on page 0x38.

See a detailed outline of the reverse engineering here and the GitHub repo here.

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Computer Lessons: A history of using computers in education

Over on the Creatures of Thought blog, is an excellent, detailed essay on how computers have been linked to education from the 1960s to the 1980s.

The belief that computers would revolutionize education took root long before the microcomputer era; it had spread rapidly across American universities in the 1960s. The political and technical moment were both ripe: the Soviet launch of Sputnik in 1957 and Lyndon Johnson’s Great Society programs both catalyzed massive new flows of federal money into education, and into educational research in particular.

Meanwhile, time-sharing, which allowed multiple users to simultaneously access a single large, expensive computer, made it conceivable to teach whole classrooms of students at once by computer (though this was still very expensive, given the price of computers at the time).

However confused the original purpose and function of classroom computers, they became by the mid-1980s an unquestioned necessity. That schools were obligated to expose their charges to the basics of the computer became an accepted fact-of-life of twentieth-century schooling.

This mirrored a broader trend of personal computing: in a handful of years it went from curiosity that large organizations ignored, to an experiment that a few early adopters within large organizations took up, to a requirement that large organizations controlled. Nothing better embodied this transformation than the IBM Personal Computer.

See this excellent piece here.

 

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