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.
Some Geniuses Are Swapping 200-Mile Battery Packs into BMW I3s
(theautopian.com)
BMW sold over 250,000 i3s between 2013 and 2022, and with those cars having carbon fiber bodies and aluminum frames that don’t rust; plastic and carbon fiber panels that don’t dent; and interiors that hold up to abuse, there are naturally many i3s still on the road, looking good.
BMW sold over 250,000 i3s between 2013 and 2022, and with those cars having carbon fiber bodies and aluminum frames that don’t rust; plastic and carbon fiber panels that don’t dent; and interiors that hold up to abuse, there are naturally many i3s still on the road, looking good.
Six mistakes I made in my dioramas-and-felt Steam game and one I didn't
(novalis.org)
I'm still working on my point-and-click puzzle game made from dioramas.
I'm still working on my point-and-click puzzle game made from dioramas.
Amateur Telescope Making Main Page
(stellafane.org)
"For it is true that astronomy, from a popular standpoint, is handicapped by the inability of the average workman to own an expensive astronomical telescope. It is also true that if an amateur starts out to build a telescope just for fun he will find, before his labors are over, that he has become seriously interested in the wonderful mechanism of our universe.
"For it is true that astronomy, from a popular standpoint, is handicapped by the inability of the average workman to own an expensive astronomical telescope. It is also true that if an amateur starts out to build a telescope just for fun he will find, before his labors are over, that he has become seriously interested in the wonderful mechanism of our universe.
Bending Spacetime in the Basement (1997)
(fourmilab.ch)
One of the things I detested about being a little kid was that every time I thought of something really cool to do, I was invariably thwarted by my little brother shouting, “Mom! Kelvin's mixing rocket fuel in the bathtub again!” or “Mom! Kelvin's making a submarine out of the old refrigerator!”. Well, middle age has its drawbacks, but at least you can undertake a project like this without fear of getting nipped in the bud at the cry, “Mom!
One of the things I detested about being a little kid was that every time I thought of something really cool to do, I was invariably thwarted by my little brother shouting, “Mom! Kelvin's mixing rocket fuel in the bathtub again!” or “Mom! Kelvin's making a submarine out of the old refrigerator!”. Well, middle age has its drawbacks, but at least you can undertake a project like this without fear of getting nipped in the bud at the cry, “Mom!
Bio science lab in home for brain and body was launched in indiegogo
(indiegogo.com)
Indiegogo is committed to accessibility.
Indiegogo is committed to accessibility.
The Framework Laptop 13 has just been upgraded to AMD's Strix Point
(theverge.com)
Framework has done it again — it’s built a new AMD-powered modular computer that fits into any previous version of its 13-inch laptop for $449, or that you can buy as a brand-new laptop starting at $899 for DIY or $1,099 entirely prebuilt for you.
Framework has done it again — it’s built a new AMD-powered modular computer that fits into any previous version of its 13-inch laptop for $449, or that you can buy as a brand-new laptop starting at $899 for DIY or $1,099 entirely prebuilt for you.
Tiny Ten DSP-Based HF Transceiver
(janbob.com)
This all started while on a backpack in Oregon's Cascade Mountains. We enjoyed the beautiful scenery of our alpine valley. The lake in front of the tent was crystal clear and reflected the surrounding mountains. But, radio signals were all shielded from us. Not only were there no Cell signals, but we could only receive one weak FM broadcast station.
This all started while on a backpack in Oregon's Cascade Mountains. We enjoyed the beautiful scenery of our alpine valley. The lake in front of the tent was crystal clear and reflected the surrounding mountains. But, radio signals were all shielded from us. Not only were there no Cell signals, but we could only receive one weak FM broadcast station.
Rackmounting that which should not be rackmounted
(calbryant.uk)
A few years ago I developed a few clever ways of rackmounting non-rackmount equipment so it could look neat in my HiFi rack enclosure.
A few years ago I developed a few clever ways of rackmounting non-rackmount equipment so it could look neat in my HiFi rack enclosure.
The most unhinged video wall, made out of Chromebooks
(varun.ch)
This is the story of our three year long journey to turn a fleet of laptops into what can only be described as the world’s most unhinged video wall.
This is the story of our three year long journey to turn a fleet of laptops into what can only be described as the world’s most unhinged video wall.
Vinyl carver sparking a craze for cutting records at home
(theguardian.com)
Using a diamond needle, lathe-cutters can turn blank vinyl discs into your very own record – with a pressing run of however many or few you fancy. We report on a booming business
Using a diamond needle, lathe-cutters can turn blank vinyl discs into your very own record – with a pressing run of however many or few you fancy. We report on a booming business
Tinker – Flexible, and Ready to Move: Your Cartoon-Style Bipedal Robot
(github.com/Yuexuan9)
Tinker is an open-source bipedal robot designed to provide robotic enthusiasts and developers with a hands-on platform.
Tinker is an open-source bipedal robot designed to provide robotic enthusiasts and developers with a hands-on platform.