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UDP Broadcasting And The Brave New World Of IPv6

After recently working our way through UDP broadcasting and network subnetting all in the comfort zone of IPv4, it’s time to address the elephant in the room, the one wearing …read more

After Decades, NASA May Finally Replace Mars Relays

We’ve yet to find any definitive evidence that there’s biological life on present-day Mars, but to say it’s a dead planet isn’t exactly accurate. Since the first Viking lander touched …read more

2026 Hackaday Supercon: Announcing Our First Round Of Speakers

Supercon is the Ultimate Hardware Conference™ and you need to be there November 6-8 in Pasadena, California! Below is just the tip of the speakers’ iceberg, but if that’s not …read more

Raspberry Pi RAM Restrictions No Big Deal, Frankly

Hacking on Raspberry Pi board internals is one of my favourite topics. I know a bunch of obscure things about these cute little boards. Three years ago, I covered a …read more

DIY Router On X86 E-Waste: OpenWrt And OPNsense

In previous installments of this series we looked at how creating a DIY router using an e-waste-level PC has changed over the years, before attempting to boot OpenWrt for x86 …read more

From The Blog

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  • Going On A Tangent With The Intel 8087’s Hybrid CORDIC Algorithm

    No comments

    By Maya Posch | September 27, 2026

    Continuing their reverse-engineering of Intel’s 8087 FPU, [Ken Shirriff] and friends took a look at one of the trigonometric functions, specifically FPTAN.  The most exciting part with such reverse-engineering is …read more

  • Defeating Satellite Spoofing With Galileo’s Encryption

    8 Comments

    By Aaron Beckendorf | September 27, 2026

    Considering how important it is for everything from navigation to keeping clocks in sync, satellite navigation systems are surprisingly vulnerable to a variety of attacks, ranging from simple jamming to …read more

  • Ways To Empirically Identify A Magnet’s Polarity

    4 Comments

    By Donald Papp | September 27, 2026

    Every magnet has a north and a south pole, but which is which? Sometimes it matters. If a product one builds features a magnetic closure or other part, the polarity …read more

  • Enormous Fluid Simulation On Flip Dots Is Also Enormous Amount Of Work

    2 Comments

    By Donald Papp | September 27, 2026

    Flip dot displays are cool, and more people realize that after [mitxela]’s fluid simulation on flip dots installation was on display at EMF 2026. As glorious as the result is, …read more

  • Reverse Engineering Apple’s Mikey Chip

    18 Comments

    By Bryan Cockfield | September 27, 2026

    On the old iPods, generally referred to here in the future as iPod Classic, there lives a tiny, undocumented chip called Mikey. It sits at the headphone output and performs …read more

  • When The Debugger Lies With Stale Cache Values

    9 Comments

    By Maya Posch | September 27, 2026

    In a recent blog post by [Daniel Mangum] he goes over a scenario observed while debugging the Cortex-M33-based nRF54LM20, reading and writing values while running through a few scenarios. After …read more

  • Basically, Galvanizing Metal Without Acid

    15 Comments

    By Bryan Cockfield | September 26, 2026

    As useful as steel and iron are to the modern world, their tendency to rust is a major downside. There’s a spectrum of ways to prevent it, from quickly slapping …read more

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  • After Decades, NASA May Finally Replace Mars Relays

    16 Comments
  • 2026 Hackaday Supercon: Announcing Our First Round Of Speakers

    No comments
  • Raspberry Pi RAM Restrictions No Big Deal, Frankly

    151 Comments
  • The First Floating Nuclear Power Station

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  • FCC ISM Rules May Shatter Lora Mesh Communities

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  • The Least Annoying Of All Evils

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  • Hackaday Podcast Episode 388: RAM-Swapping On Raspberry Pi, Raindrops On Radar, And A Fine Mesh

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  • This Week In Security: FBI Gets Hacked, Muse Vulnerable To ClickFix, Popular Rust Developers At Risk, And New Attacks Against RSA

    12 Comments
  • UDP Broadcasting And The Brave New World Of IPv6

    31 Comments
  • DIY Router On X86 E-Waste: OpenWrt And OPNsense

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Featured Projects

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PowerPD — ESP32 USB-C PD/PPS Bench Power Supply

PowerPD — ESP32 USB-C PD/PPS Bench Power Supply

by Raushan Kumar
LightInk

LightInk

by Daniel Ansorregui

Trending Projects

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YUMO Roulette — A "Floating" Spinning Desk Gadget

YUMO Roulette — A "Floating" Spinning Desk Gadget

by YUMO.BUILDS
YUMO SMART CUBE: Touch screen/ESP32-S3 Brass Wire

YUMO SMART CUBE: Touch screen/ESP32-S3 Brass Wire

by YUMO.BUILDS
H1 Radio Telescope

H1 Radio Telescope

by Leonardo
Virtual Scroll Wheel for thin laptops

Virtual Scroll Wheel for thin laptops

by Madhav Kavuru
QFH Antenna for VHF Satellite Downlink

QFH Antenna for VHF Satellite Downlink

by Leonardo
YUMO PULSE — ESP32-C3 Desk Gadget

YUMO PULSE — ESP32-C3 Desk Gadget

by YUMO.BUILDS

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If you missed it

  • After Decades, NASA May Finally Replace Mars Relays

    16 Comments
  • 2026 Hackaday Supercon: Announcing Our First Round Of Speakers

    No comments
  • Raspberry Pi RAM Restrictions No Big Deal, Frankly

    151 Comments
  • The First Floating Nuclear Power Station

    20 Comments
  • FCC ISM Rules May Shatter Lora Mesh Communities

    117 Comments
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  • The Least Annoying Of All Evils

    49 Comments
  • Hackaday Podcast Episode 388: RAM-Swapping On Raspberry Pi, Raindrops On Radar, And A Fine Mesh

    1 Comment
  • This Week In Security: FBI Gets Hacked, Muse Vulnerable To ClickFix, Popular Rust Developers At Risk, And New Attacks Against RSA

    12 Comments
  • UDP Broadcasting And The Brave New World Of IPv6

    31 Comments
  • DIY Router On X86 E-Waste: OpenWrt And OPNsense

    24 Comments
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  • Nick on Running Your Own 3G Network
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