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Calculus-Free PID (Almost) In A Spreadsheet

PID controllers are everywhere. They regulate temperature, motor speed, power supplies, positioning systems, process equipment, and probably a dozen things within arm’s reach of you right now. They’re also frequently …read more

FitzRoy’s Glass: Victorian Weather Marvel Or Glorified Thermometer?

Everyone talks about the weather. This is doubly true for sailors, where bad weather could mean a very bad day. So it isn’t surprising that navies around the world have …read more

FLOSS Weekly Episode 878: A Tool With Opinions

This week Jonathan chats with Jonathan Pallant about embedded Rust! Learn about the growing Rust driver library, the different ways to build a Rust stack on an embedded device, and …read more

Know Your Food: Our Daily Bread

It’s time to return to our no-punches-pulled look at food manufacture, and this time we’re looking at the humble loaf of bread. As before, we’re approaching the subject with a …read more

Cell Broadcast: The Modern Emergency Alert System

Once upon a time, telephones were primarily point-to-point communications systems. There were options for three-way and conference calls out there, but by and large the plain old telephone system was …read more

From The Blog

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  • Transmitting Analog Video Via Frikkin’ Laser Beams

    No comments

    By Tyler August | August 9, 2026

    Transmitting analog video via photons is old hat: that’s how everything started, after all, back in the day with over-the-air TV. Up the frequency of those photons from radio to …read more

  • Continously Extruding 3D Printed Tubes With Compressed Air

    3 Comments

    By Aaron Beckendorf | August 9, 2026

    [Jan] of [Roetz 4.0] has a unique approach to multi-material 3D printing: he’s designed an extruder which takes two different materials and extrudes one as a shell around the other. …read more

  • Whatever Happened To The Computer Of Tomorrow, Anyway? The Xerox Alto Story

    11 Comments

    By Tyler August | August 9, 2026

    You’ve almost certainly heard of the Xerox Alto, the machine that pioneered the desktop-mouse-keyboard interface and inspired Steve Jobs to produce the Apple Lisa and Macintosh computers. It wasn’t just …read more

  • Tracking Bees With A Stereo Camera

    4 Comments

    By Al Williams | August 8, 2026

    For whatever reason, [Jeremy] wants to photograph bees in flight. This is one of those things that doesn’t seem that hard until you try to do it. He’s got the …read more

  • High-Density Parchment Paper Papertronics With Laser-Carved Hydrophilic Channels

    4 Comments

    By Maya Posch | August 8, 2026

    Paper as a substrate for electronic circuits is not very common, but promising for flexible circuits with low cost and easy recyclability. That said, paper is not an easy material …read more

  • Track Bird Visitors With A Raspberry Pi And A USB Mic

    16 Comments

    By Donald Papp | August 8, 2026

    Avian Visitors is a lovely project by [Teddy Warner] that uses a Raspberry Pi and microphone to keep track of which birds have been visiting your home, and creates a …read more

  • Grading Tomatoes With An ESP32 And ML

    6 Comments

    By Al Williams | August 8, 2026

    If you’ve ever worked with produce, you might know about grading. In addition to deciding if, say, a strawberry is good or not, they also have to sort them by …read more

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  • FitzRoy’s Glass: Victorian Weather Marvel Or Glorified Thermometer?

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  • Road Trains Roam The Backroads Of Australia

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  • The 16K Display That Ate Las Vegas

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  • Hackaday Podcast Episode 381: Airless Tires, Full-color Prints, And 28 MW Of LEDs

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  • This Week In Security: Claude Gets Hacking, Hotel WiFi, And NPM Compromised Again

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  • Calculus-Free PID (Almost) In A Spreadsheet

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  • FLOSS Weekly Episode 878: A Tool With Opinions

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  • Know Your Food: Our Daily Bread

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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

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AimTracer - Every Trigger Pull Tells a Story

AimTracer - Every Trigger Pull Tells a Story

by Moritz Wenzel
The Gemini Protocols for Deep Space Travel

The Gemini Protocols for Deep Space Travel

by Archer Quinn
Kobee Studio – Modern PCB Graphics for KiCad

Kobee Studio – Modern PCB Graphics for KiCad

by Corey
zeptoforth

zeptoforth

by Travis Bemann
Internet Radio with Bluetooth Audio Streaming

Internet Radio with Bluetooth Audio Streaming

by TheMicroMaker
10km long range Lora esp temperature logger

10km long range Lora esp temperature logger

by Patrick

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  • FitzRoy’s Glass: Victorian Weather Marvel Or Glorified Thermometer?

    19 Comments
  • Cell Broadcast: The Modern Emergency Alert System

    35 Comments
  • Road Trains Roam The Backroads Of Australia

    33 Comments
  • The 16K Display That Ate Las Vegas

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  • Hackaday Podcast Episode 381: Airless Tires, Full-color Prints, And 28 MW Of LEDs

    8 Comments
  • This Week In Security: Claude Gets Hacking, Hotel WiFi, And NPM Compromised Again

    8 Comments
  • Calculus-Free PID (Almost) In A Spreadsheet

    19 Comments
  • FLOSS Weekly Episode 878: A Tool With Opinions

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  • Know Your Food: Our Daily Bread

    52 Comments
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  • Archer Quinn has updated details to The Gemini Protocols for Deep Space Travel.
  • Moritz Wenzel has updated the project titled AimTracer - Every Trigger Pull Tells a Story.
  • Corey has added a new log for Kobee Studio – Modern PCB Graphics for KiCad.
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  • Travis Bemann has added a new log for zeptoforth.
  • Travis Bemann has added a new log for zeptoforth.
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