Hacking the Modern Tamagotchi With UART
Although not technically the first virtual pet, the Tamagotchi handhelds certainly popularized the idea and made it a worldwide phenomenon. In the late 90s it was hard to go out …read more
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Hardware
Can AI design a working PCB? @JLCPCB
JLCPCB posted on X about a board designed with the help of an AI agent working in KiCad. The builder, who goes by John, used the workflow to produce a GNSS module based on the u-blox MAX-M10S receiver. The finished…
Reach your ESP32’s web page from anywhere
Pinscope has posted a tutorial on hackster.io that makes an ESP32’s own web page reachable from outside the local network, without a port forward or a VPN. The device opens one outbound connection and gets an HTTPS…
MP3 player cassette, version 2
C Forde built an MP3 player shaped like a cassette tape, and posted the build on Hackster.io. It plays through headphones on its own, or it sits in a cassette deck and feeds audio to the player’s own head through a tape…
Encrypted IoT networking via RF24Gateway with nRF24, nRF52x and nRF54x. Coming soon
TMRh20Projects posted on the Seeed Studio forum about adding encryption to RF24Gateway. The work builds on nrf_to_nrf, a library for direct radio communication on XIAO nRF52840 and nRF54L15 boards. It does not use…
The IBM PC 5150, Revision A vs Revision B
Dave Farquhar at The Silicon Underground compares the two versions of the original IBM PC 5150, pegged to the October 27, 1982 date on the Revision B BIOS. The fronts look identical. The back tells you which one you…
How do touchscreens work?
Shri Khalpada walks through the two main kinds of touchscreen, with interactive demos, at PerThirtySix. Resistive screens stack two conductive layers with spacer dots between them. The controller puts a voltage slope…
The death of Flash
CultRepo posted a 51 second clip on YouTube about the moment Flash started to disappear from the web. It points to Steve Jobs announcing that the iPhone would not support Adobe Flash, which meant video on iOS had to run…
Does Running an E-Paper Display at 30 FPS Destroy It?
Although e-paper displays are famous for being low-power and lasting essentially forever if not damaged physically, the recent push to drive even cheaper e-paper displays at a framerate like 30 …read more
Where did your mouse come from?
Dmitriy Kostiuk gave a talk on the history of the computer mouse, published on media.ccc.de. It traces how pointing devices changed in three areas: how they detect motion, what protocols they speak, and how they fit the…
What is the tolerance of a 0Ω resistor?
JLCPCB posted a question to its followers on X: what is the tolerance of a 0Ω resistor? The company’s own parts library lists one as “0Ω ±1%”. One percent of zero is zero, so the spec says nothing useful. JLCPCB asked…
Practice Japanese on an Inkplate 4Tempera eInk device, open source
Peter Hraska built Enkiplate, a Japanese flashcard system for the Soldered Inkplate 4TEMPERA, and published the code and documentation on GitHub. Read the card, tap to reveal the answer, then rate how you did. The…
A shapeshifting LED mask for Halloween
Sam Freeman writing at Make: covers a Halloween mask by Sebastian Staacks of There Oughta Be that swaps faces using LED grids. The mask uses two 128×64 LED matrixes driven by a Raspberry Pi Pico 2 W, mounted to a face…
C64 Keycaps For Everybody
If you’ve got an MX-style keyboard and want some retro charm, you might like a recent project from [Levente Szabadkai]. It’s a set of C64-style keycaps that you can print …read more
Learn ESP-IDF with ESP32: the beginner’s guide (eBook)
Rui Santos and Sara Santos have released a new version of their ESP-IDF eBook on Random Nerd Tutorials. ESP-IDF is Espressif’s own framework for programming ESP32 chips, built around C and FreeRTOS, with lower level…
The oldest GUI application that still runs on Windows 11
A post on blog.enlyth.com asks a narrow question: what is the oldest GUI application that still runs on Windows 11 with no modifications and no emulation. Sixteen-bit Windows programs are out, since 64-bit Windows has…
JP’s Product Pick of the Week 10/27/26
Well what do we have here? It’s the Adafruit eInk Breakout Friend with 32KB SRAM! Follow along with John Park during the week’s product pick. Want more JP’s Product Pick of the Week?! Tune in every Tuesday on Youtube…
From impulse purchase to pocket studio: the M-Vave FM-1
Nick Indge, writing at Ars Technica, bought an M-Vave FM-1 for $59.72 and found an active custom firmware scene already built around it. The FM-1 was sold as a pocket take on the Yamaha DX7, with 27 soft-touch piano…
The Philips AV7300 turns analog TV RF into composite video
Andrew Dorey writes about a way to capture video from old computers that only have RF output. Machines like the ZX81 modulated their video onto a UHF carrier because televisions were the display of choice in the 1970s…
Shipping Alert – Adafruit is Voting Tuesday, November 3 #Vote #Shipping
Election Day is an official holiday here at Adafruit. All employees are given a paid day off so they can get out and vote! While we will still be moving orders on Tuesday, November 3 but there may be some delays or…
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