Hacker News with Generative AI: DIY Projects

Reviving an old kindle pw7 as an e-ink dashboard (terminalbytes.com)
Most of us have a drawer (or a box) stuffed with old gadgets—a sort of tech graveyard we can’t quite bring ourselves to throw out. You know the one I’m talking about: that chaotic nest of tangled cables, forgotten adapters, and mysterious dongles that looks like a digital snake pit (yeah, exactly like that mess in the photo below).
The Supersonic Trebuchet (hackaday.com)
Have you ever sat down and thought “I wonder if a trebuchet could launch a projectile at supersonic speeds?” Neither have we. That’s what separates [David Eade] from the rest of us. He didn’t just ask the question, he answered it! And he documented the entire build in a YouTube video which you can see below the break.
F/0.38 camera lens made with oil immersion microscope objective (youtube.com)
Zusie – My Relay Computer (nablaman.com)
I amuse myself by constructing a computer almost entirely out of relays.
A Young Man Used AI to Build a Nuclear Fusor (corememory.com)
AI madness is upon many of us, and it can take different forms. In August 2024, for example, I stumbled upon a post from a 20-year-old who had built a nuclear fusor in his home with a bunch of mail-ordered parts. More to the point, he’d done this while under the tutelage of Anthropic’s Claude AI service.
DIY Projects Search Engine (FindingDIY.com)
Use our search engine to find free DIY projects on topics like arduino, home decor, embroidery, woodworking, and more. Start typing below to explore thousands of DIY guides from around the web.
A 1U bar of LEDs that replicate the vibe of WOPR from WarGames (reddit.com)
I’ve always been deeply fascinated with the aesthetic of WOPR, the computer from War Games (1983). The steadily changing lights that allegedly represented the state of the machine are something I’ve wanted to replicate in my server rack for years. Recently I decided that if the product didn’t exist, I’d make it.
Snowdrop OS – a homebrew operating system from scratch, in assembly language (sebastianmihai.com)
Snowdrop OS was born of my childhood curiosity around what happens when a PC is turned on, the mysteries of bootable disks, and the hidden aspects of operating systems.
Turn any bicycle electric (dhruvvidyut.co.in)
Welcome to Dhruv Vidyut, where we offer a revolutionary electric conversion kit for bicycles.
I Built an Omni-Directional Ball-Wheeled Bike [video] (youtube.com)
Building a Tiny Linux from Scratch (blinry.org)
Last week, I built a tiny Linux system from scratch, and booted it on my laptop!
The "35-cent" Commodore 64 softmodem (blogspot.com)
Rockwell famously used 6502-based cores in modems for many years, but that doesn't mean other 6502s couldn't be used. If only there were a way to connect a Commodore 64's audio output directly to an RJ-11 plug ...
In 36h, I built a neutron-producing nuclear fusor in my kitchen using Claude (twitter.com)
E-Ink PDA – Building My Dream Productivity Device [video] (youtube.com)
Project Mini Rack – compact and portable homelabs (jeffgeerling.com)
Today I'm announcing Project MINI RACK, an open source project to help those building homelabs, RF/wireless rigs, and other electronics projects into mini 10" racks.
How I built this website on a Raspberry Pi (mirawelner.com)
As of the time of writing this, the Raspberry Pi 5 has recently been released. Some people are buying it excitedly, while others think that its value over previous models doesn't warrant the price increase. In any event, many people will be implementing various projects on their new (or old) Pis.
Virtual Vette – Racing Simulator Built from Wrecked Corvette (instructables.com)
This project started because I was looking for a way to encourage and reward my son, Daniel, for earning his Eagle Scout rank.
Morse Code Clock (temporaldiscombobulator.com)
Lego Retro Radio #10334 – play your own music using a Raspberry Pi (sean.co.uk)
Discover how to play your own music on the Lego Retro Radio (10334) set by putting a Raspberry Pi computer inside. My project description includes Python code you can use to play your own music.
Show HN: Belshazzar's Clock, luminous paint night clock (karliner.net)
With generations of Belshazzars languishing in storage, I decided it was time to make a version of Belshazzar more suited to domestic environments, and settled on a clock.
Show HN: E-Paper Life Organizer with Pico and Inky Frame (github.com/jaeheonshim)
A simple e-ink dashboard for planning and organizing your life.
Guten: A Tiny Newspaper Printer (amanvir.com)
Shmøergh Hog – The making of a simple analog synth (peterzimon.com)
We finished the first version of a synthesizer that starts to resemble a real product. It's the same concept that I've already written about – a simple switches-over-knobs style analog synth for live performance, called Hog – but with completely reworked circuitry and enclosure.
The Cody Computer (codycomputer.org)
The Cody Computer is an 8-bit home computer intended to be built as a DIY project.
Building Your First LoRa Mesh Network from Scratch [video] (media.ccc.de)
In a world of centralized internet control, building your own mesh network isn't just a technical challenge—it's digital independence. This beginner-friendly guide walks through creating resilient mesh networks using accessible hardware like LoRa and ESP devices. From antenna selection to node placement strategy, learn how to build networks that operate independently of traditional infrastructure.
Scale Model of Boeing 777-300ER, Made from Manila Folders (lucaiaconistewart.com)
This project traces its beginnings to an architecture class in high school where we learned to use manila file folders to roughly model our building ideas.
Reverse Engineering the Duco Connectivity Board (github.com/kokx)
My newly built house came with a promising feature: a DucoBox Energy Comfort D325 ventilation system with heat recovery. While the system efficiently preheats incoming air using outgoing air’s heat, its control options were limited to four basic modes through a simple button interface. I wanted more - specifically, integration with Home Assistant. The official solution? A Duco Connectivity Board. But when I noticed it was just an ESP32 in disguise, I knew there had to be a better way.
Monkey Island PC speaker music player (thanassis.space)
TL;DR: I modified DOSBox to extract the frequency/delay value pairs of the Monkey Island PC-Speaker songs. I then used Huffman compression to squeeze all music inside an ATtiny85 (512 bytes of RAM, 8 KB of flash) Once I managed that, I then created a small circuit with a speaker - to play the music... ...as a gift for my nieces and nephews; whom I'll see next week after more than a year's isolation (COVID)!
Build a Low-Cost Drone Using ESP32 (digikey.com)
Drones have rapidly evolved from niche hobbies to versatile tools with a wide range of applications, from photography to agriculture or even for defence and military purposes.
2solitude – Honeywell TPE 331-12 refitted Antonov AN-2 camper (2solitude.com)
In a crowded world, finding a slice of paradise feels harder than ever