Nostr notes by Hackaday

Using Azo Photoisomerization to Alter Semiconductor Film ...

2026-09-19T11:16:05Z

Using Azo Photoisomerization to Alter Semiconductor Film Properties

Generally semiconductor devices like transistors have fixed properties, but using an azobenzene (Azo) compound it’s possible to optically alter these properties by exposing them to UV light. This is demonstrated …read more
#hacking #projects
https://hackaday.com/2026/09/19/using-azo-photoisomerization-to-alter-semiconductor-film-properties/

Re-creating NASA’s Heat Shield Problem After the Orion capsule ...

2026-09-14T02:31:03Z

Re-creating NASA’s Heat Shield Problem

After the Orion capsule of the Artemis I lunar mission returned to Earth, it was found that massive chunks of its heatshield had been ripped off, posing a serious risk …read more
#hacking #projects
https://hackaday.com/2026/09/13/re-creating-nasas-heat-shield-problem/

The Team Behind The Flipper One Needs Your Help You’ve probably ...

2026-05-23T05:16:04Z

The Team Behind The Flipper One Needs Your Help

You’ve probably heard of the Flipper Zero, a pocket-sized device that packs in lots of great hacking potential. The team behind it has now turned their efforts towards developing the …read more
#hacking #projects
https://hackaday.com/2026/05/22/the-team-behind-the-flipper-one-needs-your-help/

Magic-less 8 Ball Finds New Life With Pi Pico Inside There’s an ...

2026-03-28T11:16:03Z

Magic-less 8 Ball Finds New Life With Pi Pico Inside

There’s an old saying that goes: when life gives you lemons, make lemonade. [lds133] must have heard that saying, because when life took the magic liquid out of his Magic …read more
#hacking #projects
https://hackaday.com/2026/03/28/magic-less-8-ball-finds-new-life-with-pi-pico-inside/

Making a Nichrome Wirewound Power Resistor Although not really a ...

2026-03-28T08:31:08Z

Making a Nichrome Wirewound Power Resistor

Although not really a cost-effective or a required skill unless you have some very specific needs not met by off-the-shelf power resistor options, making your own own wirewound power resistor …read more
#hacking #projects
https://hackaday.com/2026/03/28/making-a-nichrome-wirewound-power-resistor/

SEGA Music to MODfile, (Semi)Automatically One thing SEGA’s ...

2026-03-28T05:31:04Z

SEGA Music to MODfile, (Semi)Automatically

One thing SEGA’s MegaDrive/Genisis and the Commodore Amiga had in common was–aside from the Motorola 68000 processor– being known for excellent music in games. As [reassembler] continues his quest to …read more
#hacking #projects
https://hackaday.com/2026/03/27/sega-music-to-modfile-semiautomatically/

Using FireWire on a Raspberry Pi Before Linux Drops Support Once ...

2026-03-28T02:31:03Z

Using FireWire on a Raspberry Pi Before Linux Drops Support

Once the premium option for data transfers and remote control for high-end audiovisual and other devices, FireWire (IEEE 1394) has been dying a slow death ever since Apple and Sony …read more
#hacking #projects
https://hackaday.com/2026/03/27/using-firewire-on-a-raspberry-pi-before-linux-drops-support/

Water Cooling the MacBook Neo Laptop to Double Gaming Performance ...

2026-03-27T23:31:04Z

Water Cooling the MacBook Neo Laptop to Double Gaming Performance

Recently [ETA Prime] felt a bit underwhelmed by the raw performance of his MacBook Neo when it came to running for extended periods under full load, such as when gaming. …read more
#hacking #projects
https://hackaday.com/2026/03/27/water-cooling-the-macbook-neo-laptop-to-double-gaming-performance/

Laser Welding Helps YouTuber Get Ahead with Aluminum Sheet Laser ...

2026-03-27T20:31:04Z

Laser Welding Helps YouTuber Get Ahead with Aluminum Sheet

Laser Welding is apparently the new hotness, in part because these sci-fi rayguns masquerading as tools are really cool. They cut! They weld! They Julienne Fry! Well, maybe not that …read more
#hacking #projects
https://hackaday.com/2026/03/27/laser-welding-helps-youtuber-get-ahead-with-aluminum-sheet/

Use a Gap-Cap to Embed Hardware In Your Next 3D Print Embedding ...

2026-03-27T19:01:04Z

Use a Gap-Cap to Embed Hardware In Your Next 3D Print

Embedding fasteners or other hardware into 3D prints is a useful technique, but it can bring challenges when applied to large or non-flat objects. The solution? Use a gap-cap. The …read more
#hacking #projects
https://hackaday.com/2026/03/27/use-a-gap-cap-to-embed-hardware-in-your-next-3d-print/

Hackaday Podcast Episode 363: The History of PLA, Laser DIY PCBs, ...

2026-03-27T18:31:04Z

Hackaday Podcast Episode 363: The History of PLA, Laser DIY PCBs, and Corporate Craziness

What did Elliot Williams and Al Williams read on Hackaday last week? Tune in and find out. After a bit of news, [Vik Oliver] chimes in with some deep PLA …read more
#hacking #projects
https://hackaday.com/2026/03/27/hackaday-podcast-episode-363-the-history-of-pla-laser-diy-pcbs-and-corporate-craziness/

Luthier Crafts Guitar from Cardboard The people at Signal ...

2026-03-27T16:01:05Z

Luthier Crafts Guitar from Cardboard

The people at Signal Snowboards are well known not only for producing quality snowboards, but doing one-off builds out of unusual and perhaps questionable materials just to see what’s possible. …read more
#hacking #projects
https://hackaday.com/2026/03/27/luthier-crafts-guitar-from-cardboard/

This Week in Security: Second Verse, Worse Than the First Isn’t ...

2026-03-27T14:31:05Z

This Week in Security: Second Verse, Worse Than the First

Isn’t there some claim events come in threes? After the extremely rare leak of the iOS Coruna exploit chain recently, now we have details from Google on a second significant exploit in …read more
#hacking #projects
https://hackaday.com/2026/03/27/this-week-in-security-second-verse-worse-than-the-first/

Understand Your Printer Better With The Interactive Inkjet ...

2026-03-27T11:31:04Z

Understand Your Printer Better With The Interactive Inkjet Simulator

Love them or hate them, inkjets are still a very popular technology for putting text and images on paper, and with good reason. They work and are inexpensive, or would …read more
#hacking #projects
https://hackaday.com/2026/03/27/understand-your-printer-better-with-the-interactive-inkjet-simulator/

This Flow Battery Operates With No Pump Required Flow batteries ...

2026-03-27T08:31:07Z

This Flow Battery Operates With No Pump Required

Flow batteries are rather unique. They generate electricity by the combination of two fluids flowing on either side of a membrane. Typically, this involves the use of some kind of …read more
#hacking #projects
https://hackaday.com/2026/03/27/this-flow-battery-operates-with-no-pump-required/

Improving Soda by Turning It Into Mead You can certainly just ...

2026-03-27T05:31:04Z

Improving Soda by Turning It Into Mead

You can certainly just chug down that bottle of soda you purchased, but if you accept the premise that the preparation of food and drink is just a subset of …read more
#hacking #projects
https://hackaday.com/2026/03/26/improving-soda-by-turning-it-into-mead/

Momentus Clock Aims To Find Meaning A lot of the time, we must ...

2026-03-27T02:16:03Z

Momentus Clock Aims To Find Meaning

A lot of the time, we must assign our own meaning to the numbers on the clock. 8:30 AM is work kicking off, 12 PM is lunch, and 5PM is …read more
#hacking #projects
https://hackaday.com/2026/03/26/momentus-clock-aims-to-find-meaning/

Comparing the Power Usage of 12 VDC and 240 VAC Kettles If you ...

2026-03-26T23:16:03Z

Comparing the Power Usage of 12 VDC and 240 VAC Kettles

If you have a 12 VDC power system, like the battery of a PV solar system or car, would it be more efficient to boil water for that cup of …read more
#hacking #projects
https://hackaday.com/2026/03/26/comparing-the-power-usage-of-12-vdc-and-240-vac-kettles/

Looking at a bike built for the apocalypse So-called bug out cars ...

2026-03-26T20:16:04Z

Looking at a bike built for the apocalypse

So-called bug out cars are a rather silly venture that serve little purpose more than snagging your jumper. The odds of a car working well through a nuclear winter are …read more
#hacking #projects
https://hackaday.com/2026/03/26/looking-at-a-bike-built-for-the-apocalypse/

Reconstructed SC62015 Opcode Reference For Sharp Pocket Computers ...

2026-03-26T18:46:05Z

Reconstructed SC62015 Opcode Reference For Sharp Pocket Computers

Pocket computers like Sharp’s 8-bit computing marvels were a big part of the 1980s, providing super-portable processing power to anyone who wanted a bit more than what something like a …read more
#hacking #projects
https://hackaday.com/2026/03/26/reconstructed-sc62015-opcode-reference-for-sharp-pocket-computers/

3D Print Becomes Cast Iron Wrench Via Microwave Consumer-grade 3D ...

2026-03-26T14:31:05Z

3D Print Becomes Cast Iron Wrench Via Microwave

Consumer-grade 3D printing is good for prototyping and making relatively soft plastic stuff. If you wanna make tough things, though, it’s really hard to beat the strength of metal. [Shake …read more
#hacking #projects
https://hackaday.com/2026/03/26/3d-print-becomes-cast-iron-wrench-via-microwave/

Modern Smartphone vs. 80s Supercomputer One of the most common ...

2026-03-26T11:16:04Z

Modern Smartphone vs. 80s Supercomputer

One of the most common ways of comparing the processing power of some microcontroller or older smartphone in a fantastical way was to say that they had more processing power …read more
#hacking #projects
https://hackaday.com/2026/03/26/modern-smartphone-vs-80s-supercomputer/

3D Printed Wire Stripper Uses PLA Blades One might think that ...

2026-03-26T08:16:04Z

3D Printed Wire Stripper Uses PLA Blades

One might think that [Da_Rius]’s mostly 3D printed wire stripper would count its insulation-shearing blades among the small number of metal parts required, but that turns out to not be …read more
#hacking #projects
https://hackaday.com/2026/03/26/3d-printed-wire-stripper-uses-pla-blades/

Testing Severely Neglected VHS Tapes and CDs Physical media has a ...

2026-03-26T05:16:05Z

Testing Severely Neglected VHS Tapes and CDs

Physical media has a certain amount of durability associated with it, a quality which is naturally determined by the way that they’re stored. Generally this does not involve being abandoned …read more
#hacking #projects
https://hackaday.com/2026/03/25/testing-severely-neglected-vhs-tapes-and-cds/

Demonstrating Gray Codes With Industrial Display Many people base ...

2026-03-26T02:16:04Z

Demonstrating Gray Codes With Industrial Display

Many people base huge swaths of their lives on foundational philosophical texts, yet few have read them in their entirety. The one that springs to the forefront of many of …read more
#hacking #projects
https://hackaday.com/2026/03/25/demonstrating-gray-codes-with-industrial-display/

VGA Output From A PIC18 In the maker world, it’s the Arduino ...

2026-03-25T23:31:06Z

VGA Output From A PIC18

In the maker world, it’s the Arduino and ESP32 lines that get the lion’s share of attention. However, you can do fantastic things with PIC chips, too, if you put …read more
#hacking #projects
https://hackaday.com/2026/03/25/vga-output-from-a-pic18/

The Most Intricate Of Freeform Digital Clocks Digital clock ...

2026-03-25T20:16:03Z

The Most Intricate Of Freeform Digital Clocks

Digital clock projects have been with us since the 1970s, when affordable LEDs and integrated circuits became available. In 2026 most of them use a microcontroller, but for the AliExpress …read more
#hacking #projects
https://hackaday.com/2026/03/25/the-most-intricate-of-freeform-digital-clocks/

FLOSS Weekly Episode 867: Pangolin: People Can Lie This week ...

2026-03-25T18:46:03Z

FLOSS Weekly Episode 867: Pangolin: People Can Lie

This week Jonathan chats with Milo Schwartz about Pangolin, the Open Source tunneling solution. Why do we need something other than Wireguard, and how does Pangolin fix IoT and IT …read more
#hacking #projects
https://hackaday.com/2026/03/25/floss-weekly-episode-867-pangolin-people-can-lie/

Retail Fail: The :CueCat Disaster Digital Convergence Corporation ...

2026-03-25T17:16:03Z

Retail Fail: The :CueCat Disaster

Digital Convergence Corporation is hardly a household name, and there’s a good reason for that. However, it raised about $185 million in investments around the year 2000 from companies such …read more
#hacking #projects
https://hackaday.com/2026/03/25/retail-fail-the-cuecat-disaster/

Stadia Controller Reborn as Bluetooth Gamepad Adapter Tech has a ...

2026-03-25T15:46:05Z

Stadia Controller Reborn as Bluetooth Gamepad Adapter

Tech has a problem, an e-waste problem. Google is a common offender when it comes to this, creating a product just to end support a couple of years later. Thankfully, …read more
#hacking #projects
https://hackaday.com/2026/03/25/stadia-controller-reborn-as-bluetooth-gamepad-adapter/

The Most Secure, Modern Computer Might Be A Mac The Linux world ...

2026-03-25T14:16:03Z

The Most Secure, Modern Computer Might Be A Mac

The Linux world is currently seeing an explosion in new users, thanks in large part to Microsoft turning its Windows operating system into the most intrusive piece of spyware in …read more
#hacking #projects
https://hackaday.com/2026/03/25/the-most-secure-modern-computer-might-be-a-mac/

Electric Motorcycles Don’t Have To Be Security Nightmares, But ...

2026-03-25T11:16:09Z

Electric Motorcycles Don’t Have To Be Security Nightmares, But This One Was

Once upon a time, they told us we wouldn’t download a car, and they were wrong. Later, Zero Motorcycles stated in their FAQ that you cannot hack an electric motorcycle, …read more
#hacking #projects
https://hackaday.com/2026/03/25/electric-motorcycles-dont-have-to-be-security-nightmares-but-this-one-was/

You Can Now Run MS-DOS Applications on the Apple IIe After a lot ...

2026-03-25T08:16:04Z

You Can Now Run MS-DOS Applications on the Apple IIe

After a lot of debugging, [Seth Kushniryk] has managed to get the last issuess shaken out of his port of MS-DOS 2.0 to the Apple II, and has released the …read more
#hacking #projects
https://hackaday.com/2026/03/25/you-can-now-run-ms-dos-applications-on-the-apple-iie/

3D Printed Robot Arm Built For Learning Purposes If you want to ...

2026-03-25T05:16:22Z

3D Printed Robot Arm Built For Learning Purposes

If you want to work with robots you can do all sorts of learning with software and simulation, but nothing quite beats getting to grips with real machinery. That was …read more
#hacking #projects
https://hackaday.com/2026/03/24/3d-printed-robot-arm-built-for-learning-purposes/

Testing Expensive Graphene-Reinforced Nylon Filament Although ...

2026-03-25T02:16:04Z

Testing Expensive Graphene-Reinforced Nylon Filament

Although usually nylon (generally PA6) filament is pretty cheap, there are some more exotic variants out there, such as the PA12-based Lyten 3D graphene filament that comes in at a …read more
#hacking #projects
https://hackaday.com/2026/03/24/testing-expensive-graphene-reinforced-nylon-filament/

Heating a Woodshop With Sawdust Most carpenters and woodworkers ...

2026-03-24T23:16:05Z

Heating a Woodshop With Sawdust

Most carpenters and woodworkers find themselves with the problem of disposing of all the sawdust they create when performing their craft. There are lots of creative solutions to this problem, …read more
#hacking #projects
https://hackaday.com/2026/03/24/heating-a-woodshop-with-sawdust/

US FCC Prohibits Approval of New Foreign-Made Consumer Routers ...

2026-03-24T20:16:09Z

US FCC Prohibits Approval of New Foreign-Made Consumer Routers

The US Federal Communications Commission (FCC) is tasked with regulating both wired and wireless communications, which also includes a national security component. This is how previously the FCC tossed networking …read more
#hacking #projects
https://hackaday.com/2026/03/24/us-fcc-prohibits-approval-of-new-foreign-made-consumer-routers/

Using a Fiber Laser to Etch 0.1 mm PCB Traces Creating PCBs at ...

2026-03-24T18:46:06Z

Using a Fiber Laser to Etch 0.1 mm PCB Traces

Creating PCBs at home is quite easy these days (vias not withstanding), but even the best DIY methods usually can’t match the resolution offered by commercial PCB production lines. Large …read more
#hacking #projects
https://hackaday.com/2026/03/24/using-a-fiber-laser-to-etch-0-1-mm-pcb-traces/

Age-Verification and the World Before Social Media Although it ...

2026-03-24T17:16:04Z

Age-Verification and the World Before Social Media

Although it may be hard to believe for current generations, there was a time when the Internet and the World Wide Web were not as integrated into society as it …read more
#hacking #projects
https://hackaday.com/2026/03/24/age-verification-and-the-world-before-social-media/

Building a Monitor Light Bar for Better Productivity If you’re ...

2026-03-24T15:46:04Z

Building a Monitor Light Bar for Better Productivity

If you’re intending to work at your desk for long periods of time, good lighting is a must, as it can help stave off eye strain and mental fatigue. It …read more
#hacking #projects
https://hackaday.com/2026/03/24/building-a-monitor-light-bar-for-better-productivity/

From Zip To Nought: The Rise and Fall of Iomega If you were ...

2026-03-24T14:16:03Z

From Zip To Nought: The Rise and Fall of Iomega

If you were anywhere near a computer in the mid-to-late 1990s, you almost certainly encountered a Zip drive. That distinctive purple peripheral, with its satisfying clunk as you slotted in …read more
#hacking #projects
https://hackaday.com/2026/03/24/from-zip-to-nought-the-rise-and-fall-of-iomega/

Direct Pressure Advance Measurement For Fast Calibration Some ...

2026-03-24T11:16:01Z

Direct Pressure Advance Measurement For Fast Calibration

Some people love fiddling with their 3D printers, others love printing. Some fiddle so they can spend more time printing, which is probably where this latest project comes in: an …read more
#hacking #projects
https://hackaday.com/2026/03/24/direct-pressure-advance-measurement-for-fast-calibration/

Disposable Vape Becomes Breath-Activated Synth Makers and ...

2026-03-24T08:16:05Z

Disposable Vape Becomes Breath-Activated Synth

Makers and hardware hackers have been collecting disposable vapes for some time now, usually to salvage their batteries or the unique displays many models now come with. But you can …read more
#hacking #projects
https://hackaday.com/2026/03/24/disposable-vape-becomes-breath-activated-synth/

Venus Flytrap Takes Ride Through a Particle Accelerator In the ...

2026-03-24T05:31:05Z

Venus Flytrap Takes Ride Through a Particle Accelerator

In the blue corner, we have the VENUS FLYTRAP! In the red corner, we have the underdog of the century, AN ENTIRE PARTICLE ACCELERATOR. Yes, you read that right. When …read more
#hacking #projects
https://hackaday.com/2026/03/23/venus-flytrap-takes-ride-through-a-particle-accelerator/

Low Self-Discharge, High-Voltage Supercapacitors Using Porous ...

2026-03-24T02:31:04Z

Low Self-Discharge, High-Voltage Supercapacitors Using Porous Carbon

Supercapacitors rely mostly on double-layer capacitance to bridge the divide between chemical batteries and traditional capacitors, but they come with a number of weaknesses. Paramount among these are their relatively …read more
#hacking #projects
https://hackaday.com/2026/03/23/low-self-discharge-high-voltage-supercapacitors-using-porous-carbon/

PicoZ80 is a Drop-in Replacement for Everyone’s Favorite Zilog ...

2026-03-23T23:31:05Z

PicoZ80 is a Drop-in Replacement for Everyone’s Favorite Zilog CPU

The Z80 has been gone a couple of years now, but it’s very much not forgotten. Still, the day when new-old-stock and salvaged DIP-40 packaged Z80s will be hard to …read more
#hacking #projects
https://hackaday.com/2026/03/23/picoz80-is-a-drop-in-replacement-for-everyones-favorite-zilog-cpu/

Acoustic Drone Detection On the Cheap with ESP32 We don’t ...

2026-03-23T20:31:04Z

Acoustic Drone Detection On the Cheap with ESP32

We don’t usually speculate on the true identity of the hackers behind these projects, but when [TN666]’s accoustic drone-detector crossed our desk with the name “Batear”, we couldn’t help but …read more
#hacking #projects
https://hackaday.com/2026/03/23/acoustic-drone-detection-on-the-cheap-with-esp32/

Build This Open-Source Graphics Calculator Graphics calculators ...

2026-03-23T19:01:05Z

Build This Open-Source Graphics Calculator

Graphics calculators are one of those strange technological cul-de-sacs. They rely on outdated technology and should not be nearly as expensive as they are, but market effects somehow keep prices …read more
#hacking #projects
https://hackaday.com/2026/03/23/build-this-open-source-graphics-calculator/

Linux Fu: UPNP A Port Mapping Odyssey If you’ve ever run a game ...

2026-03-23T17:31:04Z

Linux Fu: UPNP A Port Mapping Odyssey

If you’ve ever run a game server or used BitTorrent, you probably know that life is easier if your router supports UPnP (Universal Plug and Play). This is a fairly …read more
#hacking #projects
https://hackaday.com/2026/03/23/linux-fu-upnp-a-port-mapping-odyssey/

A Simple Switch for Simply too much Current A switch is simple: ...

2026-03-23T16:01:05Z

A Simple Switch for Simply too much Current

A switch is simple: connect two pieces of metal together and bam! Except, it’s not that simple at high currents. How much current? Just about 400 car batteries worth would …read more
#hacking #projects
https://hackaday.com/2026/03/23/a-simple-switch-for-simply-too-much-current/

The Zero-Power Flight Computer In the early days of aviation, ...

2026-03-23T14:31:03Z

The Zero-Power Flight Computer

In the early days of aviation, pilots or their navigators used a plethora of tools to solve common navigation and piloting problems. There was definitely a need for some kind …read more
#hacking #projects
https://hackaday.com/2026/03/23/the-zero-power-flight-computer/

Stream Deck Radio Controller Built With Cheap Yellow Display ...

2026-03-23T11:31:04Z

Stream Deck Radio Controller Built With Cheap Yellow Display

Stream decks are pretty useful in all kinds of contexts, but commercial models can feel a bit pricy for what is effectively a bunch of buttons. [WhiskeyTangoHotel] has whipped up …read more
#hacking #projects
https://hackaday.com/2026/03/23/stream-deck-radio-controller-built-with-cheap-yellow-display/

Better Faux-Analog VU Meters One of the coolest things about old ...

2026-03-23T08:31:05Z

Better Faux-Analog VU Meters

One of the coolest things about old hi-fi hardware is that it often came with flickety needles that danced with the audio level. You can still buy these if you …read more
#hacking #projects
https://hackaday.com/2026/03/23/better-faux-analog-vu-meters/

Building a Laser-Driven Photoacoustic Speaker An MRI scan is ...

2026-03-23T05:31:05Z

Building a Laser-Driven Photoacoustic Speaker

An MRI scan is never a pleasant occasion – even if you aren’t worried about the outcome, lying still in a confined, noisy space for long periods of time is …read more
#hacking #projects
https://hackaday.com/2026/03/22/building-a-laser-driven-photoacoustic-speaker/

The 3DFX Voodoo Lives Again In An FPGA The 3DFX Voodoo was not ...

2026-03-23T02:31:04Z

The 3DFX Voodoo Lives Again In An FPGA

The 3DFX Voodoo was not the first dedicated 3D graphics chipset by any means, but it became the favourite for gamers among the early mass-market GPUs. It would be found …read more
#hacking #projects
https://hackaday.com/2026/03/22/the-3dfx-voodoo-lives-again-in-an-fpga/

Hackaday Links: March 22, 2026 On Friday, Reuters reported that ...

2026-03-22T23:31:04Z

Hackaday Links: March 22, 2026

On Friday, Reuters reported that Amazon is going to try to get into the smartphone game…again. The Fire Phone was perhaps Amazon’s biggest commercial misstep, and was only on the …read more
#hacking #projects
https://hackaday.com/2026/03/22/hackaday-links-march-22-2026/

IDing Counterfeit Drugs Might Be Easier Than You Think Odds are, ...

2026-03-22T20:16:04Z

IDing Counterfeit Drugs Might Be Easier Than You Think

Odds are, you’ve taken pills before; it’s a statistical certainty that some of you reading this took several this morning. Whenever you do, you’re at the mercy of the manufacturer: …read more
#hacking #projects
https://hackaday.com/2026/03/22/iding-counterfeit-drugs-might-be-easier-than-you-think/

Storing Solar Energy As Ice For Air Conditioning Thermal energy ...

2026-03-22T17:16:03Z

Storing Solar Energy As Ice For Air Conditioning

Thermal energy storage is pretty great, as phase-change energy storage is very consistent with its energy output over time, unlike chemical batteries. You also get your pick from a wide …read more
#hacking #projects
https://hackaday.com/2026/03/22/storing-solar-energy-as-ice-for-air-conditioning/

Arduino Code? On my 8051? It’s More Likely Than You Think The ...

2026-03-22T14:16:04Z

Arduino Code? On my 8051? It’s More Likely Than You Think

The 8051 was an 8-bit Harvard-architecture microcontroller first put out by Intel in 1980. They’ve since discontinued that line, but it lives on in the low-cost STC8 family of chips, …read more
#hacking #projects
https://hackaday.com/2026/03/22/arduino-code-on-my-8051-its-more-likely-than-you-think/

Building a $50 SDR with 20 MHz Bandwidth Although the RTL-SDR is ...

2026-03-22T11:16:13Z

Building a $50 SDR with 20 MHz Bandwidth

Although the RTL-SDR is cheap, accessible, and capable enough for many projects, it does have some important limitations. In particular, its bandwidth is limited to about 3.2 MHz, and the …read more
#hacking #projects
https://hackaday.com/2026/03/22/building-a-50-sdr-with-20-mhz-bandwidth/

How a Belkin USB Charger Pulls off a 3 Milliwatt Standby Usage A ...

2026-03-22T08:16:03Z

How a Belkin USB Charger Pulls off a 3 Milliwatt Standby Usage

A well-known property of wall warts like power bricks and USB chargers is that they always consume some amount of power even when there’s no connected device drawing power from …read more
#hacking #projects
https://hackaday.com/2026/03/22/how-a-belkin-usb-charger-pulls-off-a-3-milliwatt-standby-usage/

An Electric Jellyfish For Androids We have to admit, we didn’t ...

2026-03-22T05:16:05Z

An Electric Jellyfish For Androids

We have to admit, we didn’t know that we wanted a desktop electric jellyfish until seeing [likeablob]’s Denki-Kurage, but it’s one of those projects that just fills a need so …read more
#hacking #projects
https://hackaday.com/2026/03/21/an-electric-jellyfish-for-androids/

Analog Video From an 8-Bit Microcontroller Although the CRT has ...

2026-03-22T02:16:04Z

Analog Video From an 8-Bit Microcontroller

Although the CRT has largely disappeared from our everyday lives, there was a decades-long timeframe when this was effectively the only display available. It’s an analog display for an analog …read more
#hacking #projects
https://hackaday.com/2026/03/21/analog-video-from-an-8-bit-microcontroller/

Reviving a Cursed Sun SPARCstation IPX The best part about retro ...

2026-03-21T23:16:04Z

Reviving a Cursed Sun SPARCstation IPX

The best part about retro computing is the idea that you’ll save some poor system from being scrapped and revive it to a working state, at which point you can …read more
#hacking #projects
https://hackaday.com/2026/03/21/reviving-a-cursed-sun-sparcstation-ipx/

ESP32: When Is A P4 A P4, But Not The P4 You Thought It Was ...

2026-03-21T20:16:05Z

ESP32: When Is A P4 A P4, But Not The P4 You Thought It Was

We’re used to electronic parts of the same type staying predictably the same, sometimes over many years. An early Z80 from the mid 1970s can be exchanged with one from …read more
#hacking #projects
https://hackaday.com/2026/03/21/esp32-when-is-a-p4-a-p4-but-not-the-p4-you-thought-it-was/

Analog Siren for Psychedelic Soundscapes For better or worse, ...

2026-03-21T17:16:08Z

Analog Siren for Psychedelic Soundscapes

For better or worse, there are a few instruments that have been pigeonholed into specific genres of popular music. For example, banjos are often heard in bluegrass or folk, harmonicas …read more
#hacking #projects
https://hackaday.com/2026/03/21/analog-siren-for-psychedelic-soundscapes/

The Unreasonable Power Density of Lithium-Ion We’re all used to ...

2026-03-21T14:16:03Z

The Unreasonable Power Density of Lithium-Ion

We’re all used to it by now, but I’d just like to reflect on how insanely power-packed lithium ion batteries are, and everything that’s afforded us. I’m trying to think …read more
#hacking #projects
https://hackaday.com/2026/03/21/the-unreasonable-power-density-of-lithium-ion/

Resin Injection CRT Cataract Surgery On Macintosh Monitor Nothing ...

2026-03-21T11:16:04Z

Resin Injection CRT Cataract Surgery On Macintosh Monitor

Nothing lasts forever, but you’d think the leaded-glass face of a CRT would not be a place you’re likely to see Father Time causing failures. Alas, the particle accelerators we …read more
#hacking #projects
https://hackaday.com/2026/03/21/resin-injection-crt-cataract-surgery-on-macintosh-monitor/

3D Printed Clock Just Taps It In The famous cuckoo clock, with ...

2026-03-21T08:31:05Z

3D Printed Clock Just Taps It In

The famous cuckoo clock, with its moving, chirping mechanical bird indicating various divisions of time, has been around since at least the 1600s. The most famous of them come from …read more
#hacking #projects
https://hackaday.com/2026/03/21/3d-printed-clock-just-taps-it-in/

Portable CRT TV Becomes Retro Cyberdeck These days, it’s pretty ...

2026-03-21T05:31:08Z

Portable CRT TV Becomes Retro Cyberdeck

These days, it’s pretty easy to slap together a single-board computer and a cheap LCD screen to whip up a cool cyberdeck fast. But what if you wanna go more …read more
#hacking #projects
https://hackaday.com/2026/03/20/portable-crt-tv-becomes-retro-cyberdeck/

Slug Algorithm for On-GPU Rendering of Fonts with Bézier Curves ...

2026-03-21T02:31:03Z

Slug Algorithm for On-GPU Rendering of Fonts with Bézier Curves now in Public Domain

The Slug Algorithm has been around for a decade now, mostly quietly rendering fonts and later entire GUIs using Bézier curves directly on the GPU for games and other types …read more
#hacking #projects
https://hackaday.com/2026/03/20/slug-algorithm-for-on-gpu-rendering-of-fonts-with-bezier-curves-now-in-public-domain/

Conway’s Game of Life With Physical Buttons Conway’s Game of ...

2026-03-20T23:31:04Z

Conway’s Game of Life With Physical Buttons

Conway’s Game of Life excels in its simplicity, creating a cellular automaton on a 2D grid where each cell obeys a set of very simple rules that determine whether a …read more
#hacking #projects
https://hackaday.com/2026/03/20/conways-game-of-life-with-physical-buttons/

How Long Can a Quadcopter Drone Fly on Just Solar? The dream of ...

2026-03-20T20:31:04Z

How Long Can a Quadcopter Drone Fly on Just Solar?

The dream of fully powering everything from aircraft to cars on just the power generated from solar panels attached to the machine remains a tempting one, but always seems to …read more
#hacking #projects
https://hackaday.com/2026/03/20/how-long-can-a-quadcopter-drone-fly-on-just-solar/

User Repair of a Not User-Repairable Victron CCGX Issue Power ...

2026-03-20T19:01:04Z

User Repair of a Not User-Repairable Victron CCGX Issue

Power banks come in many sizes, and those that target construction sites are probably among the largest. The massive four ton unit based around lead-acid batteries which the [Buy it …read more
#hacking #projects
https://hackaday.com/2026/03/20/user-repair-of-a-not-user-repairable-victron-ccgx-issue/

Hackaday Podcast Episode 362: Compression Molding, IPv4x, and ...

2026-03-20T17:31:04Z

Hackaday Podcast Episode 362: Compression Molding, IPv4x, and Wired Headphones

As the sun goes down on a glorious spring evening on the western edge of Europe, Elliot Williams is joined by Jenny List for a look at the week in …read more
#hacking #projects
https://hackaday.com/2026/03/20/hackaday-podcast-episode-362-compression-molding-ipv4x-and-wired-headphones/

Powering USB Devices with a Bench Supply Adapter Board Sometimes ...

2026-03-20T16:01:04Z

Powering USB Devices with a Bench Supply Adapter Board

Sometimes you wanna test a piece of USB hardware, but you don’t just want to plug it into a random old phone charger. [KS-Elektronikdesign] has whipped up a useful tool …read more
#hacking #projects
https://hackaday.com/2026/03/20/powering-usb-devices-with-a-bench-supply-adapter-board/

This Week in Security: Linux Flaws, Python Ownage, and a Botnet ...

2026-03-20T14:31:05Z

This Week in Security: Linux Flaws, Python Ownage, and a Botnet Shutdown

The ides of security March are upon us — Qualys reports the discovery by their threat research unit of vulnerabilities in the Linux AppArmor system used by SUSE, Debian, Ubuntu, and …read more
#hacking #projects
https://hackaday.com/2026/03/20/this-week-in-security-linux-flaws-python-ownage-and-a-botnet-shutdown/

Google Unveils New Process for Installing Unverified Android Apps ...

2026-03-20T11:31:04Z

Google Unveils New Process for Installing Unverified Android Apps

It’s no secret that Google really doesn’t like it that people are installing Android applications from any other source than the Play Store. Last year they proposed locking everyone into …read more
#hacking #projects
https://hackaday.com/2026/03/20/google-unveils-new-process-for-installing-unverified-android-apps/

A Candle-Powered Game Boy For Post-Apocalyptic Tetris We’re not ...

2026-03-20T08:31:03Z

A Candle-Powered Game Boy For Post-Apocalyptic Tetris

We’re not exactly worried about Armageddon here at Hackaday, but should we end up facing the end of the world as we know it, having something to pass the time …read more
#hacking #projects
https://hackaday.com/2026/03/20/a-candle-powered-game-boy-for-post-apocalyptic-tetris/

Recording HDR Video With A Raspberry Pi The Raspberry Pi line of ...

2026-03-20T05:31:05Z

Recording HDR Video With A Raspberry Pi

The Raspberry Pi line of single-board computers can be hooked up with a wide range of compatible cameras. There are a number of first party options, but you don’t have …read more
#hacking #projects
https://hackaday.com/2026/03/19/recording-hdr-video-with-a-raspberry-pi/

Studying a Battle Born LFP Battery’s Death Under Controlled ...

2026-03-20T02:31:03Z

Studying a Battle Born LFP Battery’s Death Under Controlled Conditions

There has been quite a bit of news recently about the Battle Born LiFePO4 (LFP) batteries and how they are dying in droves if not outright melting their plastic enclosures. …read more
#hacking #projects
https://hackaday.com/2026/03/19/studying-a-battle-born-lfp-batterys-death-under-controlled-conditions/

Real Robot Makes Debut in Programming Game Sometimes the right ...

2026-03-19T23:16:04Z

Real Robot Makes Debut in Programming Game

Sometimes the right tool for the right job appears almost out of nowhere. That was certainly the case for [Jonathan] who came across an unusual but well-designed robot at a …read more
#hacking #projects
https://hackaday.com/2026/03/19/real-robot-makes-debut-in-programming-game/

Retro Weather Display Acts Like It’s Windows 95 Sometimes you ...

2026-03-19T20:16:03Z

Retro Weather Display Acts Like It’s Windows 95

Sometimes you really need to know what the weather is doing, but you don’t want to look at your phone. For times like those, this neat weather display from [Jordan] …read more
#hacking #projects
https://hackaday.com/2026/03/19/retro-weather-display-acts-like-its-windows-95/

Reading the World’s Smallest Hard Drive You have a tiny ...

2026-03-19T18:46:04Z

Reading the World’s Smallest Hard Drive

You have a tiny twenty-year-old hard drive with a weird interface. How do you read it? If you’re [Will Whang], by reverse engineering, and building an interface board. In many …read more
#hacking #projects
https://hackaday.com/2026/03/19/reading-the-worlds-smallest-hard-drive/

Keebin’ with Kristina: the One With the Ultra-Thin Split But ...

2026-03-19T17:46:03Z

Keebin’ with Kristina: the One With the Ultra-Thin Split

But sir, it is wafer-thin. That’s how they get you! Just when you couldn’t possibly justify building another keyboard, let alone owning one, along comes the Kambala by [aroum2]. Now, …read more
#hacking #projects
https://hackaday.com/2026/03/19/keebin-with-kristina-the-one-with-the-ultra-thin-split/

Sega Genesis Finally Gets Long-Awaited Stock Ticker App 37 Years ...

2026-03-19T15:46:04Z

Sega Genesis Finally Gets Long-Awaited Stock Ticker App 37 Years After Launch

Until now, if you were seated at your Sega Genesis and wanted to check your stock portfolio, you were out of luck. You had to get a smartphone, or a …read more
#hacking #projects
https://hackaday.com/2026/03/19/sega-genesis-finally-gets-long-awaited-stock-ticker-app-37-years-after-launch/

Artemis II Agenda Keeps Moon-Bound Crew Busy With the launch of ...

2026-03-19T14:16:04Z

Artemis II Agenda Keeps Moon-Bound Crew Busy

With the launch of Artemis II from Cape Canaveral potentially just weeks away, NASA has been releasing a steady stream of information about the mission through their official site and …read more
#hacking #projects
https://hackaday.com/2026/03/19/artemis-ii-agenda-keeps-moon-bound-crew-busy/

Modular 18650 Packs, No Spot Welding Required Building a battery ...

2026-03-19T11:16:04Z

Modular 18650 Packs, No Spot Welding Required

Building a battery pack from 18650 cells traditionally requires patience, a spot welder, and a supply of nickel strip. But what if there was another way? [Ben] is here with …read more
#hacking #projects
https://hackaday.com/2026/03/19/modular-18650-packs-no-spot-welding-required/

Simple MIDI Sample Player Runs on ESP32 [Jakub] is a musician, ...

2026-03-19T08:16:04Z

Simple MIDI Sample Player Runs on ESP32

[Jakub] is a musician, and found himself in need of a simple way to trigger samples via MIDI when on stage. So many commercial solutions exist, but most were overkill …read more
#hacking #projects
https://hackaday.com/2026/03/19/simple-midi-sample-player-runs-on-esp32/

Teardown of a 2026 LEGO SMART Brick At the beginning of March ...

2026-03-19T05:16:05Z

Teardown of a 2026 LEGO SMART Brick

At the beginning of March this year LEGO released their new SMART brick, which looks like a 2×4 stud brick and is filled to the brim with sensors, LEDs, NFC …read more
#hacking #projects
https://hackaday.com/2026/03/18/teardown-of-a-2026-lego-smart-brick/

DIY Reflow Plate Runs On USB Power Delivery If you’re working ...

2026-03-19T02:16:04Z

DIY Reflow Plate Runs On USB Power Delivery

If you’re working with surface mount components, you’re likely going to want a reflow plate at some point. [Vitaly] was in need of just such a tool, and thus whipped …read more
#hacking #projects
https://hackaday.com/2026/03/18/diy-reflow-plate-runs-on-usb-power-delivery/

Running Windows 98 on the iPAQ IA-2 Internet Appliance Devices ...

2026-03-18T23:16:05Z

Running Windows 98 on the iPAQ IA-2 Internet Appliance

Devices that were limited to only run a web browser were relatively common around 2000, as many people wanted to surf the Information Super Highway, but didn’t quite want to …read more
#hacking #projects
https://hackaday.com/2026/03/18/running-windows-98-on-the-ipaq-ia-2-internet-appliance/

Repurposing Old AMD APUs For AI Work The BC250 is what AMD calls ...

2026-03-18T20:16:03Z

Repurposing Old AMD APUs For AI Work

The BC250 is what AMD calls an APU, or Accelerated Processing Unit. It combines a GPU and CPU into a single unit, and was originally built to serve as the …read more
#hacking #projects
https://hackaday.com/2026/03/18/repurposing-old-amd-apus-for-ai-work/

FLOSS Weekly Episode 866: BreezyBox and Embedded Compilers This ...

2026-03-18T18:46:19Z

FLOSS Weekly Episode 866: BreezyBox and Embedded Compilers

This week Jonathan chats with Valentyn Danylchuk about BreezyBox — an interactive shell and toolkit that provides various tools and a compiler on an ESP32 microcontroller. What was the inspiration …read more
#hacking #projects
https://hackaday.com/2026/03/18/floss-weekly-episode-866-breezybox-and-embedded-compilers/

Hackaday Europe Tickets On Sale Now, CFP Extended Hackaday Europe ...

2026-03-18T17:46:04Z

Hackaday Europe Tickets On Sale Now, CFP Extended

Hackaday Europe is approaching, and we’re putting tickets on sale now. “But wait, you haven’t selected the talks yet!” we hear you saying. Indeed! And that’s why we discount the …read more
#hacking #projects
https://hackaday.com/2026/03/18/hackaday-europe-tickets-on-sale-now-cfp-extended/

Forgetfulino Puts Back Up of Source Inside the Binary How often ...

2026-03-18T15:46:04Z

Forgetfulino Puts Back Up of Source Inside the Binary

How often have you pulled out old MCU-based project that still works fine, but you have no idea where the original source code has gone? Having the binary image and …read more
#hacking #projects
https://hackaday.com/2026/03/18/forgetfulino-puts-back-up-of-source-inside-the-binary/

The Rise and Fall of Free Dial Up Internet In the early days of ...

2026-03-18T14:16:03Z

The Rise and Fall of Free Dial Up Internet

In the early days of the Internet, having a high-speed IP connection in your home or even a small business was, if not impossible, certainly a rarity. Connecting to a …read more
#hacking #projects
https://hackaday.com/2026/03/18/the-rise-and-fall-of-free-dial-up-internet/

CorridorKey is What You Get When Artists Make AI Tools You may ...

2026-03-18T11:16:04Z

CorridorKey is What You Get When Artists Make AI Tools

You may not have noticed, but so-called “artificial intelligence” is slightly controversial in the arts world. Illustrators, graphics artists, visual effects (VFX) professionals — anybody who pushes pixels around are …read more
#hacking #projects
https://hackaday.com/2026/03/18/corridorkey-is-what-you-get-when-artists-make-ai-tools/

Building an LC Meter with a Franklin Oscillator Although it dates ...

2026-03-18T08:31:04Z

Building an LC Meter with a Franklin Oscillator

Although it dates back to the early days of the Marconi Company in the 1920s, the Franklin oscillator has remained a relatively obscure circuit, its memory mostly kept alive by …read more
#hacking #projects
https://hackaday.com/2026/03/18/building-an-lc-meter-with-a-franklin-oscillator/

Testing Whether Heated Chambers Help Brittle Filaments Some FDM ...

2026-03-18T05:31:08Z

Testing Whether Heated Chambers Help Brittle Filaments

Some FDM filaments are pretty brittle even if properly dried and stored, especially those which contain carbon fiber (CF) or similar additives like glass fiber (GF). This poses a problem …read more
#hacking #projects
https://hackaday.com/2026/03/17/testing-whether-heated-chambers-help-brittle-filaments/