The Dauug House - Dauug|36 minicomputer documentation
(cs.wright.edu)
Dauug|36 is a 36-bit architecture for owner-built CPUs, controllers, and minicomputers. Only maker-scale assembly tools are necessary, so this architecture can be implemented anywhere on the planet without a semiconductor foundry. All you need is a bare circuit board, about 300 components, and some soldering practice.
Dauug|36 is a 36-bit architecture for owner-built CPUs, controllers, and minicomputers. Only maker-scale assembly tools are necessary, so this architecture can be implemented anywhere on the planet without a semiconductor foundry. All you need is a bare circuit board, about 300 components, and some soldering practice.
Hyperwood – Open-Source Furniture
(hyperwood.org)
Hyperwood is an open-source system for crafting furniture from simple wooden slats.
Hyperwood is an open-source system for crafting furniture from simple wooden slats.
Attacking My Landlord's Boiler
(videah.net)
A little while ago I moved into an apartment to live on my own for the first time. This has given me a decent amount of newfound freedom to sculpt my living environment to my liking, but not enough where I could start knocking down walls. I have a landlord (and a deposit!) to think about, after all. 🙂
A little while ago I moved into an apartment to live on my own for the first time. This has given me a decent amount of newfound freedom to sculpt my living environment to my liking, but not enough where I could start knocking down walls. I have a landlord (and a deposit!) to think about, after all. 🙂
Making a smart bike dumb so it works again
(francisco.io)
The company that made my bike went bankrupt a few years ago. It isn't truly even my bike, it's my friend's, who bought it God-knows-where, in a country where this company never operated. This friend is no longer here —in this country—[1] so I'm holding it for him and can use it freely.
The company that made my bike went bankrupt a few years ago. It isn't truly even my bike, it's my friend's, who bought it God-knows-where, in a country where this company never operated. This friend is no longer here —in this country—[1] so I'm holding it for him and can use it freely.
Slightly Nasty DIY Modular Synthesizer
(slightlynasty.com)
Modular synthesizer PCBs and panels for the Loudest Warning 4U format
Modular synthesizer PCBs and panels for the Loudest Warning 4U format
Show HN: Nissan's Leaf app doesn't have a home screen widget so I made my own
(kevintechnology.com)
Nissan's LEAF® App Doesn't Have a Home Screen Widget So I Made My Own for Free
Nissan's LEAF® App Doesn't Have a Home Screen Widget So I Made My Own for Free
How to Make a Longbow
(howtomakealongbow.co.uk)
If you have sought out this site, then chances are you already know what a Longbow is or at least what it means to you, there are many types of Longbow and many ways to make one.
If you have sought out this site, then chances are you already know what a Longbow is or at least what it means to you, there are many types of Longbow and many ways to make one.
DIY "Teensy" Bat Detector
(zachpoff.com)
Ultrasound has fascinated me for a long time (see my other pages about ultrasound recording and microphones), and I’ve been observing urban bats in NYC for several years. I’m fascinated by the urban wildlife that coexists with humans and particularly interested in making unheard voices accessible by playing them back at slower speed (AKA “time expansion”) so the fast details of their vocalizations and echoes are preserved.
Ultrasound has fascinated me for a long time (see my other pages about ultrasound recording and microphones), and I’ve been observing urban bats in NYC for several years. I’m fascinated by the urban wildlife that coexists with humans and particularly interested in making unheard voices accessible by playing them back at slower speed (AKA “time expansion”) so the fast details of their vocalizations and echoes are preserved.
Erica Synths DIY Eurorack Modules
(github.com/erica-synths)
As Erica Synths discontinues its legacy DIY eurorack projects, we decided to make them open-source.
As Erica Synths discontinues its legacy DIY eurorack projects, we decided to make them open-source.
PiDP-1, or the rebirth of an old machine
(hackaday.io)
In other words, we increased the number of PDP-1s ever produced by 10% in two days :-)
In other words, we increased the number of PDP-1s ever produced by 10% in two days :-)
DIY experimental reactor harnesses the Birkeland-Eyde process
(arduino.cc)
Nitrogen is critical for farming at scale and without some form of nitrogen to enrich the soil, we couldn’t grow staple crops efficiently enough to feed our large global population. Serious science goes into the production of fertilizers and the Birkeland-Eyde process was one early example. It uses electrical arcs to turn nitrogen in the air into nitric acid. Marb is an enthusiastic citizen scientist and built his own experimental reactor to harness the Birkeland-Eyde process.
Nitrogen is critical for farming at scale and without some form of nitrogen to enrich the soil, we couldn’t grow staple crops efficiently enough to feed our large global population. Serious science goes into the production of fertilizers and the Birkeland-Eyde process was one early example. It uses electrical arcs to turn nitrogen in the air into nitric acid. Marb is an enthusiastic citizen scientist and built his own experimental reactor to harness the Birkeland-Eyde process.
Ashtf8/EinkPDA: An E-Ink PDA Device Using the ESP32 S3
(github.com/ashtf8)
This project is a PDA powered by an ESP32-S3 running a custom "OS" written in C++ using the Arduino IDE. This project utilizes an E-Ink and OLED screen in tandem to mitigate the refresh rate restrictions of an E-Ink panel while retaining the aesthetics and benefits of using E-Ink. This project is a work in progress and currently amounts to a simple GUI for navigating between apps, a text (.txt) file editor, and a basic file manager.
This project is a PDA powered by an ESP32-S3 running a custom "OS" written in C++ using the Arduino IDE. This project utilizes an E-Ink and OLED screen in tandem to mitigate the refresh rate restrictions of an E-Ink panel while retaining the aesthetics and benefits of using E-Ink. This project is a work in progress and currently amounts to a simple GUI for navigating between apps, a text (.txt) file editor, and a basic file manager.
Learn electricity and electronics fundamentals without taking a formal course
(simonmonk.org)
Learn electricity and electronics fundamentals and up-to-date applications―all without taking a formal course
Learn electricity and electronics fundamentals and up-to-date applications―all without taking a formal course
Kindle as a High-Contrast GPS
(instructables.com)
I show how you can use your ebook (Kindle, Kobo, Sony, ipad, tablet) as a GPS.
I show how you can use your ebook (Kindle, Kobo, Sony, ipad, tablet) as a GPS.
Converting a Go-Kart into a Deathtrap
(matto.io)
As a child, I always dreamed of having vehicles that I could drive myself. I remember putting a chair with a fan in front of it and pretending to fly an airplane.
As a child, I always dreamed of having vehicles that I could drive myself. I remember putting a chair with a fan in front of it and pretending to fly an airplane.
DIY PTP Grandmaster Clock with a Raspberry Pi
(jeffgeerling.com)
tl;dr: I set up an open source Time Pi project to build a stratum 1 PTP and NTP timeserver using a Raspberry Pi.
tl;dr: I set up an open source Time Pi project to build a stratum 1 PTP and NTP timeserver using a Raspberry Pi.
I tried making artificial sunlight at home
(victorpoughon.fr)
Some time ago, I saw this video by DIY Perks where they make artificial sunlight at home with a 500W LED and a gigantic (1.2m) parabolic reflector. I've been fascinated by this project ever since, and I wanted my own.
Some time ago, I saw this video by DIY Perks where they make artificial sunlight at home with a 500W LED and a gigantic (1.2m) parabolic reflector. I've been fascinated by this project ever since, and I wanted my own.
Pi Pico Rx – A crystal radio for the digital age?
(readthedocs.io)
The Pi Pico Rx - may be the answer to that question. While it may not be quite as straightforward as the crystal radio, the Pi Pico Rx presents a remarkably simple solution. Armed with just a Raspberry Pi Pico, an analogue switch, and an op-amp, we now have the power to construct a capable SDR receiver covering the LW, MW, and SW bands. With the ability to receive signals from halfway around the globe.
The Pi Pico Rx - may be the answer to that question. While it may not be quite as straightforward as the crystal radio, the Pi Pico Rx presents a remarkably simple solution. Armed with just a Raspberry Pi Pico, an analogue switch, and an op-amp, we now have the power to construct a capable SDR receiver covering the LW, MW, and SW bands. With the ability to receive signals from halfway around the globe.
All clothing is handmade (2022)
(ruthtillman.com)
The idea for this quilt came to me several years ago. Besides making quilts, I make some of my own clothes and occasionally make clothes for people in my life. I made my own wedding dress and one for a college friend as well (and never doing that again).
The idea for this quilt came to me several years ago. Besides making quilts, I make some of my own clothes and occasionally make clothes for people in my life. I made my own wedding dress and one for a college friend as well (and never doing that again).
Arduino device helps 'split the G' on a pint of Guinness
(arduino.cc)
Guinness is one of those beers (specifically, a stout) that people take seriously and the Guinness brand has taken full advantage of that in their marketing. They even sell a glass designed specifically for enjoying their flagship creation, which has led to a trend that the company surely appreciates: “splitting the G.” But that’s difficult for many to pull off, so Eamon Magd built this device that makes the trick easy to master.
Guinness is one of those beers (specifically, a stout) that people take seriously and the Guinness brand has taken full advantage of that in their marketing. They even sell a glass designed specifically for enjoying their flagship creation, which has led to a trend that the company surely appreciates: “splitting the G.” But that’s difficult for many to pull off, so Eamon Magd built this device that makes the trick easy to master.
Implementing "Tennis for Two" using op amps (2024)
(qiqitori.com)
“Tennis for Two” is the name given to an early video game implemented on an analog computer. See https://en.wikipedia.org/wiki/Tennis_for_Two and https://en.wikipedia.org/wiki/Early_history_of_video_games for more information on the game itself. This post documents the construction of a “Tennis for Two”-like game using op amps.
“Tennis for Two” is the name given to an early video game implemented on an analog computer. See https://en.wikipedia.org/wiki/Tennis_for_Two and https://en.wikipedia.org/wiki/Early_history_of_video_games for more information on the game itself. This post documents the construction of a “Tennis for Two”-like game using op amps.
ESP32 WiFi Superstitions
(supakeen.com)
The ESP32 is a popular microcontroller to use for do-it-yourself home automation, sensors, and a variety of other bits and bobs that you might want to take care of around the house.
The ESP32 is a popular microcontroller to use for do-it-yourself home automation, sensors, and a variety of other bits and bobs that you might want to take care of around the house.