Using an e-Book Reader as a Secondary Display

SigCore UC: An Open-Source Universal I/O Controller for the Raspberry Pi

An HO Model Power Bogie For Not A Lot

High-Speed Pocket Hot Dog Cooker

Christmas Ornament Has Hidden Compartment, Clever Design

Calibrating a Printer with Computer Vision and Precise Timing

Ask Hackaday: What Goes Into A Legible Font, And Why Does It Matter?

The Music of the Sea

Internet-Connected Consoles Are Retro Now, And That Means Problems

How To Build Good Contact Mics

Lichtenberg Lightning in a Bottle, Thanks To The Magic of Particle Accelerators

Origami on another Level with 3D Printing

The Unusual Pi Boot Process Explained

Hackaday Links: December 21, 2025

Pause Print, Add Hardware, and Enjoy Strength

Why Chopped Carbon Fiber in FDM Prints is a Contaminant

A Compact, Browser-Based ESP32 Oscilloscope

Shoot Instax Film In A Polaroid Camera With The Aid Of Tape

A Heavily Modified Rivian Attempts the Cannonball Run

A Tiny Reflecting Telescope For Portable Astronomy

Building a Multi-Channel Pipette for Parallel Experimentation

Hardware Store Marauder’s Map is Clarkian Magic

The ‘Hidden’ Microphone inside the Sipeed NanoKVM

Two-Wheeled Arduino Robot Project for Beginners

Retrocomputing: Simulacrum or the Real Deal?

Testing 8 Solder Flux Pastes After Flux Killed a GeForce2 GTS

Linux On A Floppy: Still (Just About) Possible

Reverse-Engineering the Intel 8087 Stack Circuitry

Improving the Cloud Chamber

915 MHz Forecast: Rolling Your Own Offline Weather Station

Cheap 3D Printer Becomes CNC Wood Engraver

Decapsulating a PIC12F683 to Examine Its CMOS Implementation

Hackaday Podcast Episode 350: Damnation for Spreadsheets, Praise for Haiku, and Admiration for the Hacks In Between

Attach a Full Size Lens to a Tiny Camera

This Week in Security: PostHog, Project Zero Refresh, and Thanks For All the Fish

Surplus Industrial Robot Becomes two-ton 3D Printer

Windmill Desk Lamp Is Beautifully Soothing

The Miracle of Color TV

Automatically Remove AI Features From Windows 11

Building And Testing A Turbine Driven Hydro Generator

Nostalgic Camera Is A Mashup Of Analog Video Gear

Chip Swap Fixes a Dead Amiga 600

Bare Metal STM32: Increasing the System Clock and Running Dhrystone

Interactive Hopscotch Tiles Make The Game More Exciting

Turn ‘Em On: Modern Nintendo Cartridges May Have a Limited Lifespan

Neutrino Transmutation Observed For the First Time

The Quirky Peripherals In Medical PC Setups

Designing a CPU for Native BASIC

Germanium Semiconductor Made Superconductor by Gallium Doping

Underwater Jetpack is Almost Practical