Elexhere

Bringing Flip-Dot Displays Into the 21st Century - Hackster.iohttps://www.hackster.io/news/bringing-flip-dot-displays-into-the-21st-century-4cbc186d6f35

Display

Unlock the magic of vintage flip-dot displays with this modern hardware hack that brings retro mechanical pixels back to life.

X-Ray A PCB Virtually | Hackadayhttps://hackaday.com/2026/02/23/x-ray-a-pcb-virtually/

Pcb
Reverse

If you want to reverse engineer a PC board, you could do worse than X-ray it. But thanks to [Philip Giacalone], you could just take a photo, load it into PCB Tracer, and annotate the images. You c…

sylverb/game-and-watch-retro-go-sdhttps://github.com/sylverb/game-and-watch-retro-go-sd?tab=readme-ov-file#pre-modded-options

Contribute to sylverb/game-and-watch-retro-go-sd development by creating an account on GitHub.

Scanning Table For The Professional Maker | Hackadayhttps://hackaday.com/2026/02/10/scanning-table-for-the-professional-maker/

Sometimes the simplest objects need some overthinking. This is exactly what [Chris Borge] realized when using his 3D scanner and finding that the included rotation table left quite a bit to be desi…

A DIY Retro-Modern Alarm Clock for Under $10 - Hackster.iohttps://www.hackster.io/news/a-diy-retro-modern-alarm-clock-for-under-10-4e4e972345d8

Build your own ESPclock with a Wemos D1 mini and a 3D-printed case for a customizable, budget-friendly DIY alarm clock.

A CNC Dock for the Etch A Sketch - Hackster.iohttps://www.hackster.io/news/a-cnc-dock-for-the-etch-a-sketch-e4f8bf24581e

Game

Engineer Nikodem Bartnik built the "CNC A Sketch," a robotic dock using a Raspberry Pi Pico to turn images into perfect Etch A Sketch art.

The Quickest and Easiest Way to Make Neat 3D Puzzles - Hackster.iohttps://www.hackster.io/news/the-quickest-and-easiest-way-to-make-neat-3d-puzzles-6fbd48edc8ce

Lego
Laser

Instructables user the_real_harvey came up with a very quick and easy method for making 3D puzzles.

Using 3D Printing And Copper Tape To Make PCBs | Hackadayhttps://hackaday.com/2026/01/28/using-3d-printing-and-copper-tape-to-make-pcbs/

In a recent video [QWZ Labs] demonstrates an interesting technique to use 3D printing to make creating custom PCBs rather straightforward even if all you have is a 3D printer and a roll of copper t…

The Arduino UNO, Now in Extra-Large - Hackster.iohttps://www.hackster.io/news/the-arduino-uno-now-in-extra-large-7a15236d9e8a

Arduino
Big

UncleStem just built a massive, fully functional Arduino UNO that is scaled up seven times its original size.

One-Dimensional Space Invaders Looks Surprisingly Fun - Hackster.iohttps://www.hackster.io/news/one-dimensional-space-invaders-looks-surprisingly-fun-a2f1711c9ab7

Led
Game

This 1D RGB Invaders game actually seems like more fun than regular old Space Invaders.

Audio Reactive WLED LED Lamp (ESP32 + WS2812B + 3D Printing) : 16 Steps (with Pictures) - Instructableshttps://www.instructables.com/Audio-Reactive-WLED-LED-Lamp-ESP32-WS2812B-3D-Prin/

Led
Esp32

Audio Reactive WLED LED Lamp (ESP32 + WS2812B + 3D Printing): In this project we build an Audio Reactive LED lamp inspired by the WLED logo, using an ESP32 and a 5V WS2812B strip (96 LEDs). The lamp is fully 3D printed and designed for clean, hidden internal wiring. You can either use the custom PCB with an IN…

The Perfect Minimalist LED Clock - Hackster.iohttps://www.hackster.io/news/the-perfect-minimalist-led-clock-49a4e4440518

ESPTimeCast is a hackable, Wi-Fi-connected LED matrix clock and weather display powered by an ESP32 or ESP8266 microcontroller.

Build Your Own Pro-Grade 3D Scanner Without the Commercial Price Tag - Hackster.iohttps://www.hackster.io/news/build-your-own-pro-grade-3d-scanner-without-the-commercial-price-tag-6964b9c00d30

With a Raspberry Pi and a used LiDAR sensor, an engineer built a pro-grade 3D mapping system for a fraction of the commercial cost.

The (likely?) cheapest home-made Michelson interferometerhttps://guille.site/posts/3d-printed-michelson/

Glen Akins' Tiny Traffic Lights Pack a Full-Color Display Into Each Aspect — with Wi-Fi Support, Too - Hackster.iohttps://www.hackster.io/news/glen-akins-tiny-traffic-lights-pack-a-full-color-display-into-each-aspect-with-wi-fi-support-too-e23d30c50317

This 3D-printed miniature traffic light set isn't your standard introductory electronics project!

Optimizing A Desktop, 3D Printed Wind Tunnel | Hackadayhttps://hackaday.com/2026/01/12/optimizing-a-desktop-3d-printed-wind-tunnel/

You’ve heard of wind tunnels– get some airflow going over a thingy, put some some smoke on, and voila! Flow visualization. How hard could it be? Well, as always, the devil is in the det…

Every Page in This Book Is a Functional PCB - Hackster.iohttps://www.hackster.io/news/every-page-in-this-book-is-a-functional-pcb-7feb79f02d5b

Reference Circuits is a PCB-based book where every page is a live circuit you can experiment with to learn about electronics.

Reverse-Engineering The Tamagotchi IR Connection | Hackadayhttps://hackaday.com/2026/01/10/reverse-engineering-the-tamagotchi-ir-connection/

The Tamagotchi Connection is a series of Tamagotchi toys that took the original portable pet concept and mixed things up with a wireless connection, which allowed you to interact with the pets of o…

The Issue With Wii U Gamepads And How To Clone Them | Hackadayhttps://hackaday.com/2026/01/08/the-issue-with-wii-u-gamepads-and-how-to-clone-them/

How hard would it be to clone the Wii U gamepad, the quirky controller with its unique embedded screen? This is the question that [MattKC] faced as he noticed the complete lack of Wii U gamepad rep…

M8SBC-86 Is An FPGA-Based “Kinda PC Compatible” 486 | Hackadayhttps://hackaday.com/2026/01/08/m8sbc-86-is-an-fpga-based-kinda-pc-compatible-486/

FPGA
X86

Given the technical specs of the FPGAs available to hobbyists these days, it really shouldn’t be a shock that you can implement a 486 core on one. In spite of knowing that in the technical se…

Learn How to Reverse Engineer Sub-GHz Remotes for Home Assistant - Hackster.iohttps://www.hackster.io/news/learn-how-to-reverse-engineer-sub-ghz-remotes-for-home-assistant-bd274dc092e5

KeenOnTech has a great video that will walk you through how to reverse engineer sub-GHz remote codes for use with Home Assistant.

Learn How to Pick Locks with this Oversized 3D-Printable Model - Hackster.iohttps://www.hackster.io/news/learn-how-to-pick-locks-with-this-oversized-3d-printable-model-9d9cc7e299bb

3dprint

Download this oversized 3D-printable model to understand how modern locks and lockpicking work.

THE BOOT ORDER OF THE RASPBERRY PI IS UNUSUAL! – bloghttps://patrickmccanna.net/the-raspberry-pi-boot-order-is-unusual/

Make Your Own Tires For RC Cars | Hackadayhttps://hackaday.com/2025/12/16/make-your-own-tires-for-rc-cars/

You can buy a wide range of RC car tires off the shelf. Still, sometimes it can be hard to find exactly what you’re looking for, particularly if you want weird sizes, strange treads, or somet…

Interactive Hopscotch Tiles Make The Game More Exciting | Hackadayhttps://hackaday.com/2025/12/18/interactive-hopscotch-tiles-make-the-game-more-exciting/

Hopscotch is a game usually played with painted lines or with the aid of a bit of chalk. However, if you desire fancier equipment, you might like the interactive hopscotch setup from [epatell]. The…

AMD GPU Debugger · Abdelhadi | عبدالهاديhttps://thegeeko.me/blog/amd-gpu-debugging/

Gpu

Abdelhadi' blog

Free Custom STL Files & 3D Models – Online 3D Printing Generatorhttps://www.iteration3d.fr/en/

Download or customize free STL files for 3D printing. Explore our library of on-demand 3D models. Can’t find the model? Generate it!

Production KiCad Template Covers All Your Bases | Hackadayhttps://hackaday.com/2025/12/10/production-kicad-template-covers-all-your-bases/

Kicad

Ever think about all the moving parts involving a big KiCad project going into production? You need to provide manufacturer documentation, assembly instructions and renders for them to reference, e…

Iteration3D Is Parametric Python In The Cloud | Hackadayhttps://hackaday.com/2025/12/11/iteration3d-is-parametric-python-in-the-cloud/

Cad
3d

It’s happened to all of us: you find the perfect model for your needs — a bracket, a box, a cable clip, but it only comes in STL, and doesn’t quite fit. That problem will never ha…

This "Proactive Hearing Assistant" Picks Your Conversational Partners' Voices Out of a Cacophony - Hackster.iohttps://www.hackster.io/news/this-proactive-hearing-assistant-picks-your-conversational-partners-voices-out-of-a-cacophony-94569de26df5

Paired AI models, feeding into noise-canceling headphones, figure out who's involved in your conversation and mutes everyone else.

A Musically-Reactive LED Christmas Tree | Hackadayhttps://hackaday.com/2025/12/10/a-musically-reactive-led-christmas-tree/

Regular Christmas trees don’t emit light, nor do they react to music. If you want both things in a holiday decoration, consider this build from [dbmaking]. An ESP32-D1 mini runs the show her…

LED Hourglass Is A Great Learning Project | Hackadayhttps://hackaday.com/2025/12/09/led-hourglass-is-a-great-learning-project/

Arduino

An hourglass tells you what it is in the name — a glass that you use to measure an hour of time passing by. [EDISON SCIENCE CORNER] has built a digital project that mimics such a thing, with …

Wavebird Controller Soars Once More With Open Source Adapter | Hackadayhttps://hackaday.com/2025/12/07/wavebird-controller-soars-once-more-with-open-source-adapter/

Game

After scouring the second-hand shops and the endless pages of eBay for original video game hardware, a pattern emerges. The size of the accessory matters. If a relatively big controller originally …

Level Up Your Circuit Sculpture Skills - Hackster.iohttps://www.hackster.io/news/level-up-your-circuit-sculpture-skills-139a079ea54a

Art

Circuit sculptor Huy Vector built a beautiful windmill desk lamp from brass wire, Edison LEDs, and a DC motor.

A Reliable Method for 3D Printing Watertight Hulls - Hackster.iohttps://www.hackster.io/news/a-reliable-method-for-3d-printing-watertight-hulls-7b41bc85f75a

3dprint

Ben came up with a reliable method for 3D printing watertight hulls and actually put that method to the test.

3Duino Lowers the Barrier to Entry for 3D-Printed Devices, Creates Functional Gadgets in 13 Minutes - Hackster.iohttps://www.hackster.io/news/3duino-lowers-the-barrier-to-entry-for-3d-printed-devices-creates-functional-gadgets-in-13-minutes-9c0ecc9c6802

Static models can be transformed into working electronic gadgets, researchers claim, in just a few minutes.

Wago’s Online Community Is Full Of Neat Wago Tools | Hackadayhttps://hackaday.com/2025/12/02/wagos-online-community-is-full-of-neat-wago-tools/

3dprint

Wago connectors are somewhat controversial in the electrical world—beloved by some, decried by others. The company knows it has a dedicated user base, though, and has established the Wago Creators …

Converting A 1980s Broadcast Camera To HDMI | Hackadayhttps://hackaday.com/2025/12/01/converting-a-1980s-broadcast-camera-to-hdmi/

Hack

Although it might seem like there was a sudden step change from analog to digital sometime in the late 1900s, it was actually a slow, gradual change from things like record players to iPods or from…

The Smallest Ever PlayStation Motherboard - Hackster.iohttps://www.hackster.io/news/the-smallest-ever-playstation-motherboard-b77d82a37d8c

Retro

Technology has progressed a lot over the past three decades, which let Thedrew create the world’s smallest PlayStation motherboard.

Instant Sketch Camera Is Like A Polaroid That Draws | Hackadayhttps://hackaday.com/2025/11/28/instant-sketch-camera-is-like-a-polaroid-that-draws/

These days, everyone’s got a million different devices that can take a passable photo. That’s not special anymore. A camera that draws what it sees, though? That’s kind of fun. Th…

An Online Repository For KiCad Schematics | Hackadayhttps://hackaday.com/2025/11/28/an-online-repository-for-kicad-schematics/

Kicad
Pcb

In the desktop 3D printing world, we’re fortunate to have multiple online repositories of models that anyone can load up on their machine. Looking to create a similar experience but for elect…

A Flexible Light Inspired By IKEA | Hackadayhttps://hackaday.com/2025/11/29/a-flexible-light-inspired-by-ikea/

The IKEA SMÅSNÖRE is a flexible silicone rod with an embedded LED strip, attached at each end to a base. It’s eye-catching enough, and it has the useful property of providing a diffuse light …

DIY Light Panels Work With Home Assistant | Hackadayhttps://hackaday.com/2025/11/29/diy-light-panels-work-with-home-assistant/

Led

There are a few major companies out there building colorful LED panels you can stick on your wall for aesthetic purposes. Most commercial options are pretty expensive, and come with certain limitat…

3D Print Your Own Working Minecraft Torch! - Hackster.iohttps://www.hackster.io/news/3d-print-your-own-working-minecraft-torch-4c3c25bb40ec

Led
3dprint

If you have a 3D printer, you can make this working Minecraft Torch in no time.

Laser-Cut Panels Make This Sound-Reactive Star Come to Life - Hackster.iohttps://www.hackster.io/news/laser-cut-panels-make-this-sound-reactive-star-come-to-life-d6e8f7ae2357

Led
Lasercut

Erin St Blaine used light's strange properties to design this Star Illusion that you can build yourself.

This Autonomous Facehugger, Powered by an Espressif ESP32, Could Give an Alien Nightmares - Hackster.iohttps://www.hackster.io/news/this-autonomous-facehugger-powered-by-an-espressif-esp32-could-give-an-alien-nightmares-dce8da060934

Inspired by the Alien franchise, this 3D-printable Facehugger reacts to movement — or can be controlled remotely via Bluetooth.

Making Actually Useful Schematics In KiCad | Hackadayhttps://hackaday.com/2025/11/21/making-actually-useful-schematics-in-kicad/

[Andrew Greenberg] has some specific ideas for how open-source hardware hackers could do a better job with their KiCad schematics. In his work with students at Portland State University, [Andrew] f…

Diskette Game Floppy Flopper Is Certainly No Flop | Hackadayhttps://hackaday.com/2025/11/20/diskette-game-floppy-flopper-is-certainly-no-flop/

Floppy
Game

There’s a tactile joy to the humble 3.5″ floppy that no USB stick will ever match. It’s not just the way they thunk into place in a well-made drive, the eject button, too, is a ta…

Hackropolehttps://hackropole.fr/en/

Welcome to Hackropole. This platform allows you to replay the challenges of the France Cybersecurity Challenge all year round to discover and train in various areas of cybersecurity.

I Built a Synth for My Daughter - bitsnpieces.devhttps://bitsnpieces.dev/posts/a-synth-for-my-daughter/

Hardware and software projects by Ali Roberts