Can a Coin Cell Make 27 Volts?
https://hackaday.com/2025/10/07/can-a-coin-cell-make-27-volts/
https://hackaday.com/2025/10/07/can-a-coin-cell-make-27-volts/
Hackaday
Can A Coin Cell Make 27 Volts?
We have all no doubt at some point released the magic smoke from a piece of electronics, it’s part of what we do. But sometimes it’s a piece of electronics we’re not quite ready t…
2025 Hackaday Supercon: More Wonderful Speakers
https://hackaday.com/2025/10/07/2025-hackaday-supercon-more-wonderful-speakers/
https://hackaday.com/2025/10/07/2025-hackaday-supercon-more-wonderful-speakers/
Hackaday
2025 Hackaday Supercon: More Wonderful Speakers
Supercon is just around the corner, and we’re absolutely thrilled to announce the second half of our slate! Supercon will sell out so get your tickets now before it’s too late. If you&#…
Qualcomm Introduces the Arduino Uno Q Linux-Capable SBC
https://hackaday.com/2025/10/07/qualcomm-introduces-the-arduino-uno-q-linux-capable-sbc/
https://hackaday.com/2025/10/07/qualcomm-introduces-the-arduino-uno-q-linux-capable-sbc/
Hackaday
Qualcomm Introduces The Arduino Uno Q Linux-Capable SBC
Generally people equate the Arduino hardware platforms with MCU-centric options that are great for things like low-powered embedded computing, but less for running desktop operating systems. This l…
JawnCon Returns This Weekend
https://hackaday.com/2025/10/07/jawncon-returns-this-weekend/
https://hackaday.com/2025/10/07/jawncon-returns-this-weekend/
Hackaday
JawnCon Returns This Weekend
For those local to the Philadelphia area, a “jawn” can be nearly anything or anyone — and at least for this weekend, it can even be a hacker con building up steam as it enters its…
Building a Diwheel to Add More Tank Controls to Your Commute
https://hackaday.com/2025/10/07/building-a-diwheel-to-add-more-tank-controls-to-your-commute/
https://hackaday.com/2025/10/07/building-a-diwheel-to-add-more-tank-controls-to-your-commute/
Hackaday
Building A Diwheel To Add More Tank Controls To Your Commute
It’s often said that one should not reinvent the wheel, but that doesn’t mean that you cannot change how the use of said wheel should be interpreted. After initially taking the rather z…
Tips for C Programming from Nic Barker
https://hackaday.com/2025/10/07/tips-for-c-programming-from-nic-barker/
https://hackaday.com/2025/10/07/tips-for-c-programming-from-nic-barker/
Hackaday
Tips For C Programming From Nic Barker
If you’re going to be a hacker, learning C is a rite of passage. If you don’t have much experience with C, or if your experience is out of date, you very well may benefit from hearing […
Mesmerizing Patterns from Simple Rules
https://hackaday.com/2025/10/07/mesmerizing-patterns-from-simple-rules/
https://hackaday.com/2025/10/07/mesmerizing-patterns-from-simple-rules/
Hackaday
Mesmerizing Patterns From Simple Rules
Nature is known for its intense beauty from its patterns and bright colors; however, this requires going outside. Who has time for that insanity!?!? [Bleuje] provides the perfect solution with his …
Building the DVD Logo Screensaver with LEGO
https://hackaday.com/2025/10/08/building-the-dvd-logo-screensaver-with-lego/
https://hackaday.com/2025/10/08/building-the-dvd-logo-screensaver-with-lego/
Hackaday
Building The DVD Logo Screensaver With LEGO
There’s something extremely calming and pleasing about watching a screensaver that merely bounces some kind of image around, with the DVD logo screensaver of a DVD player being a good example…
Homebrew Dam Control System Includes all the Bells and Whistles
https://hackaday.com/2025/10/08/homebrew-dam-control-system-includes-all-the-bells-and-whistles/
https://hackaday.com/2025/10/08/homebrew-dam-control-system-includes-all-the-bells-and-whistles/
Hackaday
Homebrew Dam Control System Includes All The Bells And Whistles
Over on brushless.zone, we’ve come across an interesting write-up that details the construction of a dam control system. This is actually the second part, in the first, we learn that some fri…
Reshaping Eyeballs With Electricity, No Lasers Or Cutting Required
https://hackaday.com/2025/10/08/reshaping-eyeballs-with-electricity-no-lasers-or-cutting-required/
https://hackaday.com/2025/10/08/reshaping-eyeballs-with-electricity-no-lasers-or-cutting-required/
Hackaday
Reshaping Eyeballs With Electricity, No Lasers Or Cutting Required
Glasses are perhaps the most non-invasive method of vision correction, followed by contact lenses. Each have their drawbacks though, and some seek more permanent solutions in the form of laser eye …
A Minicomputer Tape Drive Receives Some Love
https://hackaday.com/2025/10/08/a-minicomputer-tape-drive-receives-some-love/
https://hackaday.com/2025/10/08/a-minicomputer-tape-drive-receives-some-love/
Hackaday
A Minicomputer Tape Drive Receives Some Love
Taking on a refrigerator-sized minicomputer is not for the faint-hearted, but [Usagi Electric] has done it with a DEC PDP-11/44. He’s not doing it in half measures either, for his machine is…
Ask Hackaday: Why is TTL 5 Volts?
https://hackaday.com/2025/10/08/ask-hackaday-why-is-ttl-5-volts/
https://hackaday.com/2025/10/08/ask-hackaday-why-is-ttl-5-volts/
Hackaday
Ask Hackaday: Why Is TTL 5 Volts?
The familiar five volts standard from back in the TTL days always struck me as odd. Back when I was just a poor kid trying to cobble together my first circuits from the Forrest Mims Engineer’…
FLOSS Weekly Episode 850: One ROM to Rule Them All
https://hackaday.com/2025/10/08/floss-weekly-episode-850-one-rom-to-rule-them-all/
https://hackaday.com/2025/10/08/floss-weekly-episode-850-one-rom-to-rule-them-all/
Hackaday
FLOSS Weekly Episode 850: One ROM To Rule Them All
This week Jonathan and Aaron chat with Piers Finlayson about One ROM! Why does the retro-computing world need a solution for replacement ROMs? How difficult was it to squeeze a MCU and layout into …
Honoring the Legacy of Robert Murray-Smith
https://hackaday.com/2025/10/08/honoring-the-legacy-of-robert-murray-smith/
https://hackaday.com/2025/10/08/honoring-the-legacy-of-robert-murray-smith/
Hackaday
Honoring The Legacy Of Robert Murray-Smith
We at Hackaday are deeply saddened to learn of the passing of Robert Murray-Smith. The prolific experimenter had spent over a decade on YouTube, creating more than 2,500 videos where he gleefully d…
The Entire Process of Building an Open Source Analog ASIC
https://hackaday.com/2025/10/08/the-entire-process-of-building-an-open-source-analog-asic/
https://hackaday.com/2025/10/08/the-entire-process-of-building-an-open-source-analog-asic/
Hackaday
The Entire Process Of Building An Open Source Analog ASIC
Our hacker [Pat Deegan] of Psychogenic Technologies shows us the entire process of designing an analog ASIC. An ASIC is of course an Application-Specific Integrated Circuit, which is basically just…
Where is Mathematics Going? Large Language Models and Lean Proof Assistant
https://hackaday.com/2025/10/08/where-is-mathematics-going-large-language-models-and-lean-proof-assistant/
https://hackaday.com/2025/10/08/where-is-mathematics-going-large-language-models-and-lean-proof-assistant/
Hackaday
Where Is Mathematics Going? Large Language Models And Lean Proof Assistant
If you’re a hacker you may well have a passing interest in math, and if you have an interest in math you might like to hear about the direction of mathematical research. In a talk on this top…
Why Stepper Motors Still Dominate 3D Printing
https://hackaday.com/2025/10/08/why-stepper-motors-still-dominate-3d-printing/
https://hackaday.com/2025/10/08/why-stepper-motors-still-dominate-3d-printing/
Hackaday
Why Stepper Motors Still Dominate 3D Printing
It’s little secret that stepper motors are everywhere in FDM 3D printers, but there’s no real reason why you cannot take another type of DC motor like a brushless DC (BLDC) motor and us…
Billy Bass Gets New Job as a Voice Assistant
https://hackaday.com/2025/10/09/billy-bass-gets-new-job-as-a-voice-assistant/
https://hackaday.com/2025/10/09/billy-bass-gets-new-job-as-a-voice-assistant/
Hackaday
Billy Bass Gets New Job As A Voice Assistant
For those who were alive and conscious before the modern Internet, there were in fact things that went “viral” and became cultural phenomenon for one reason or another. Although they di…
Google Japan Turn Out Another Keyboard, and it’s a Dial
https://hackaday.com/2025/10/09/google-japan-turn-out-another-keyboard-and-its-a-dial/
https://hackaday.com/2025/10/09/google-japan-turn-out-another-keyboard-and-its-a-dial/
Hackaday
Google Japan Turn Out Another Keyboard, And It’s A Dial
There’s a joke that does the rounds, about a teenager being given a dial phone and being unable to make head nor tail of it. Whether or not it’s true, we’re guessing that the sam…
Meshtastic: A Tale of Two Cities
https://hackaday.com/2025/10/09/meshtastic-a-tale-of-two-cities/
https://hackaday.com/2025/10/09/meshtastic-a-tale-of-two-cities/
Hackaday
Meshtastic: A Tale Of Two Cities
If I’m honest with myself, I don’t really need access to an off-grid, fault-tolerant, mesh network like Meshtastic. The weather here in New Jersey isn’t quite so dynamic that ther…
Holy Parachute out of Kirigami
https://hackaday.com/2025/10/09/holy-parachute-out-of-kirigami/
https://hackaday.com/2025/10/09/holy-parachute-out-of-kirigami/
Hackaday
Holy Parachute Out Of Kirigami
If you have a fear of heights and find yourself falling out of an airplane, you probably don’t want to look up to find your parachute full of holes. However, if the designer took inspiration from k…