Just like the garage computer explosion of the 70’s through the 80’s, which brought us such things as Apple, pong, Bill Gate’s hair, and the proliferation of personal computers, the maker movement is the new garage hardware explosion. Today, 135 million adults in the United States alone are involved in the maker movement.
Enthusiasts who want to build the products they want, from shortwave radios to personal computers, and to tweak products they’ve bought to make them even better, have long been a part of the electronics industry. By all measures, garage-style innovation remains alive and well today, as “makers” as they are called continue to turn out contemporary gadgets, including 3D printers, drones, and embedded electronics devices.
Making is about individual Do-It-Yourselfers being able to design and create with tools that were, as of a decade or two ago, only available to large, cash-rich corporations: CAD tools, CNC mills, 3D printers, low-quantity PCB manufacturing, open hardware such as Arduinos and similar inexpensive development boards – all items that have made it easier and relatively cheap to make whatever we imagine. For individuals, maker tools can change how someone views their home or their hobbies. The world is ours to make. Humans are genetically wired to be makers. The maker movement is simply the result of making powerful building and communication tools accessible to the masses. There are plenty of projects from makers that show good engineering: Take this Arduino board with tremendous potential, developed by a young maker, as example.
The maker movement is a catalyst to democratize entrepreneurship as these do-it-yourself electronics are proving to be hot sellers: In the past year, unit sales for 3D printing related products; Arduino units, parts and supplies; Raspberry Pi boards; drones and quadcopters; and robotics goods are all on a growth curve in terms of eBay sales. There are many Kickstarter maker projects going on. The Pebble E-Paper Watch raises $10 million. The LIFX smartphone-controlled LED bulb raises $1.3 million. What do these products have in common? They both secured funding through Kickstarter, a crowd-funding website that is changing the game for entrepreneurs. Both products were created by makers who seek to commercialize their inventions. These “startup makers” iterate on prototypes with high-end tools at professional makerspaces.
For companies to remain competitive, they need to embrace the maker movement or leave themselves open for disruption. Researchers found that 96 percent of business leaders believe new technologies have forever changed the rules of business by democratizing information and rewiring customer expectations. - You’ve got to figure out agile innovation. Maybe history is repeating itself as the types of products being sold reminded us of the computer tinkering that used to be happening in the 1970s to 1990s – similar in terms of demographics, tending to be young people, and low budget. Now the do-it-yourself category is deeply intertwined with the electronics industry. Open hardware is in the center in maker movement – we need open hardware designs! How can you publish your designs and still do business with it? Open source ecosystem markets behave differently and therefore require a very different playbook than traditional tech company: the differentiation is not in the technology you build; it is in the process and expertise that you slowly amass over an extended period of time.
By democratizing the product development process, helping these developments get to market, and transforming the way we educate the next generation of innovators, we will usher in the next industrial revolution. The world is ours to make. Earlier the PC created a new generation of software developers who could innovate in the digital world without the limitations of the physical world (virtually no marginal cost, software has become the great equalizer for innovation. Now advances in 3D printing and low-cost microcontrollers as well as the ubiquity of advanced sensors are enabling makers to bridge software with the physical world. Furthermore, the proliferation of wireless connectivity and cloud computing is helping makers contribute to the Internet of Things (IoT). We’re even beginning to see maker designs and devices entering those markets once thought to be off-limits, like medical.
Image source: The world is ours to make: The impact of the maker movement – EDN Magazine
In fact, many parents have engaged in the maker movement with their kids because they know that the education system is not adequately preparing their children for the 21st century. There is a strong movement to spread this DIY idea widely. The Maker Faire, which launched in the Bay Area in California in 2006, underlined the popularity of the movement by drawing a record 215,000 people combined in the Bay Area and New York events in 2014. There’s Maker Media, MakerCon, MakerShed, Make: magazine and 131 Maker Faire events that take place throughout the world. Now the founders of all these Makers want a way to connect what they refer to as the “maker movement” online. So Maker Media created a social network called MakerSpace, a Facebook-like social network that connects participants of Maker Faire in one online community. The new site will allow participants of the event to display their work online. There are many other similar sites that allow yout to present yout work fron Hackaday to your own blog. Today, 135 million adults in the United States alone are involved in the maker movement—although makers can be found everywhere in the world.
7,074 Comments
Tomi Engdahl says:
https://hackaday.com/2022/10/27/the-wifi-pumpkin-is-the-wifi-pineapple-we-have-at-home/
Tomi Engdahl says:
https://hackaday.com/2022/10/26/kinetic-cyclic-scissors/
Tomi Engdahl says:
https://hackaday.com/2022/10/27/digital-kitchen-spoon-makes-weighing-your-ingredients-a-snap/
Tomi Engdahl says:
https://hackaday.com/2022/10/27/m-2-for-hackers-expand-your-laptop/
You’ve seen M.2 cards in modern laptops already. If you’re buying an SSD today, it’s most likely an M.2 one. Many of our laptops contain M.2 WiFi cards, the consumer-oriented WWAN cards now come in M.2, and every now and then we see M.2 cards that defy our expectations. Nowadays, using M.2 is one of the most viable ways for adding new features to your laptop. I have found that the M.2 standard is quite accessible and also very hackable, and I would like to demonstrate that to you.
If you ever searched the Web trying to understand what makes M.2 tick, you might’ve found one of the many confusing articles which just transcribe stuff out of the M.2 specification PDF, and make things look more complicated than they actually are. Let’s instead look at M.2 real-world use.
The M.2 standard is designed with real-world usecases in mind and defines as many pins as possible, making sure that same-purpose cards from different manufacturers can be substituted for one another. It’s split into different keyings that each serve a purpose – like storage-oriented, WWAN, WiFi and other purpose keyings. Each keying defines a pinout for a group of interfaces like PCIe, USB 2.0 or 3.0, SATA, I2C, DisplayPort and so on. Most of these interfaces are, naturally, quite tasty for a hacker.
Neither a card nor a socket is required to support all interfaces defined in the keying’s pinout, or any particular interface. This makes sense if you design systems – a lot of interfaces defined are situational or expensive. However, of course, it can cause confusion of the “it fits, but doesn’t work” kind. For instance, a B+M key SATA SSD will not work in some NVMe-only M-key sockets, and some proprietary standards like CNVi throw a wrench into the “any M.2 WiFi card will work with your laptop” concept.
However, in real-world use, there’s anchors you can rely on – if you see a M-key, A-key or E-key slot, it has PCIe, if you see a B-key slot, A-key or E-key slot, it has USB 2.0; and if you have schematics or a few M.2 devices on hand, you can quickly test compatibility of any particular slot. There’s also I2C SDA and SCL pins defined in all keyings, but whether they’re connected to anything at all is a 50/50 chance, apparently dependent on the phase of the moon of the exact day when your laptop mainboard was designed.
B+M? The M.2 standard allows combining keys on cards, letting a card fit into two different types of socket and increasing compatibility of your card. There are two combinations you will see – B+M and A+E, used for SSDs and WiFi cards respectively, and the B, M, A and E key pinouts are designed around these two combinations being possible. You lose on some of the optional features, but the crucial stuff like PCIe remains accessible.
Undoubtably most popular are M.2 SSDs. They’re either SATA, or NVMe – the latter is a storage interface using PCIe as its physical layer. We’ve talked about NVMe internals in depth, feel free to check that out. SATA SSDs usually use B+M keying – some are B-key only, but it’s rare. NVMe SSDs usually use M-key, some using a combination of B+M and thus being limited to 2 PCIe lanes, you’ll see it with cheaper SSDs.
An SSD can only support one of these standards – never both. It might be hard to figure out which one, so if there’s no NVMe or SATA logo on the label, look the model number up.
If you have the SSD in hand or got some higher-resolution pictures, look at the number of differential pairs. If there’s only two of them, it’s SATA; if there’s three, five or nine of them, it’s NVMe. Statistically, you’re way more likely to see NVMe SSDs, as they’re getting more and more abundant.
M.2 WiFi uses A or E keyings – most WiFi cards you will see will use a combined A+E keying, and sockets used to be A-key but nowadays E-key is the rule. You get an 1x PCIe link and USB 2.0 , with former used for actual WiFi and latter used for Bluetooth. On both A and E keys, you can get a second PCIe 1x link – not lane, link! – but it’s rare to see sockets that wire it up,
Not all embedded WiFi cards run PCIe, of course – the E-key pinout also accounts for SDIO WiFi cards. SDIO is an embeddable interface used mostly for SD cards and WiFi chip connections – for instance, on boards like the Raspberry Pi.
If you need a cheap USB-connected 4G modem with decent Linux support in your project, you won’t go wrong with getting a used M.2 B-key modem, typically coming in 3042 form-factorm, so 30 mm wide. A lot of these cards got manufactured for laptops with WWAN connectivity, and the second-hand market has them for ultra low prices. Most of them are USB 2.0, with some USB 3.0 cards available
M.2: Evolving, Ever-Present, Here To Stay
Some parts of the M.2 standard are fading into obscurity, and are no longer accessible on laptops out there – if they’ve ever been in the first place. If you want to go down a rabbithole, the M.2 Electromechanical Specification Rev1.0 document can be found online, and you can learn a lot from its 201 pages.
You will find M.2 basically everywhere. It has plenty of hidden potential, and if we ever need to tap into that, it helps that you learn how it’s used out there in the wild.
Tomi Engdahl says:
https://hackaday.com/2022/10/27/plasma-channel-shows-off-a-remarkably-stylish-fusor/
Tomi Engdahl says:
https://hackaday.com/2022/10/27/a-homemade-tube-amplifier-featuring-homemade-tubes/
Tomi Engdahl says:
https://hackaday.com/2022/10/27/a-solar-supercap-power-supply-to-keep-your-projects-running/
Tomi Engdahl says:
https://hackaday.com/2022/10/27/a-steam-engine-for-empty-beer-cans/
Tomi Engdahl says:
https://hackaday.com/2022/10/28/gesture-controlled-filming-gear-works-super-intuitively/
Tomi Engdahl says:
https://hackaday.com/2022/10/29/using-the-sun-to-turn-epoxy-into-furniture/
Tomi Engdahl says:
https://hackaday.com/2022/10/29/gutting-and-upgrading-laser-chiller-with-no-chill/
Tomi Engdahl says:
https://hackaday.com/2022/10/28/driving-three-color-e-paper-pricetags-with-an-arduino/
Tomi Engdahl says:
https://hackaday.com/2022/10/28/real-tractor-moonlights-as-farming-simulator-controller/
Tomi Engdahl says:
https://hackaday.com/2022/10/29/welding-aluminum-with-a-mig-welder/
Tomi Engdahl says:
Dice using Radioactive Decay for True Randomness
https://hackaday.io/project/187982-dice-using-radioactive-decay-for-true-randomness
Using nuclear radiation to generate completely random dice throws in an electronic dice set.
Tomi Engdahl says:
https://hackaday.io/project/187998-useless-retro-panel-meters
Tomi Engdahl says:
Making a literal digital clock
https://hackaday.io/project/187368-making-a-literal-digital-clock
This is the start of a bigger project, splitting it up in different pieces.
Sit back and relax, its gonna take some time
Tomi Engdahl says:
https://hackaday.com/2022/10/30/zif-hdds-dying-out-heres-an-open-source-1-8-ssd/
Tomi Engdahl says:
https://hackaday.com/2022/10/30/stop-silicone-cure-inhibition-no-fancy-or-expensive-products-required/
Tomi Engdahl says:
https://hackaday.com/2022/10/31/infinitely-scrolling-e-ink-landscape-never-repeats/
Tomi Engdahl says:
https://hackaday.com/2022/10/31/lighting-up-glue-stick-bicycle-tyres-with-rgb/
Tomi Engdahl says:
3D Printed Strain Wave Gearbox
https://hackaday.com/2022/10/31/3d-printed-strain-wave-gearbox/
3D-printed gearboxes are always an interesting design challenge, especially if you want to make them compact. [ZeroBacklash] created a little strain wave gearbox (harmonic drive) for when you want to trade speed for torque on NEMA 17 stepper motors.
Strain wave gears work by deforming a stationary flexible spline into an ellipse so the teeth engage the internal teeth of the output spline. Add a couple of extra teeth on the output side, and you get a high-reduction gearbox with fewer parts and reduced volume than equivalent spur gearing. Keeping the flexible spline stationery is achieved by making half of it engage with a stationary spline with the same number of teeth.
https://www.youtube.com/watch?v=-wFO_AbnbZQ
Tomi Engdahl says:
https://hackaday.com/2022/10/31/dropping-marbles-with-millisecond-accuracy/
Tomi Engdahl says:
https://hackaday.com/2022/10/31/moving-big-stuff-without-the-tears/
Tomi Engdahl says:
A Single-Watt Hydroponic Lighting System
https://hackaday.com/2022/10/31/a-single-watt-hydroponic-lighting-system/
Hydroponic systems are an increasingly popular way to grow plants indoors using a minimum of resources. Even some commercial farming operations are coming online using hydroponic growing techniques, as these methods consume much less water, land area, and other resources than traditional agricultural methods. The downside is that the required lighting systems often take an incredible amount of energy. That’s why [ColdDayApril] set up a challenge to grow a plant hydroponically using no more than a single watt.
The system is set up to grow a single pepper plant in what is known as a deep-water culture, where the plant is suspended in a nutrient solution which has everything it needs to grow. The lightning system is based around the Samsung LM301B which comes close to the physical limits for converting electricity into white light and can manage around 220 lumens. A special power supply is needed for these low-power diodes, and the light is efficiently directed towards the plant using a purpose-built reflective housing. By placing this assembly very close to the plant and adjusting it as it grows, [ColdDayApril] was able to take the pepper plant from seed to flowering in 92 days.
https://www.reddit.com/r/Hydroponics/comments/yemij2/how_low_can_you_grow_the_1_watt_challenge/
Tomi Engdahl says:
https://hackaday.com/2022/10/31/3d-printed-heat-exchanger-uses-gyroid-infill-for-cooling/
Tomi Engdahl says:
Need An USB-I2C Adapter? Use Your Pico!
https://hackaday.com/2022/10/31/need-an-usb-i2c-adapter-use-your-pico/
Given its abundance and simplicity, the RP2040 has no doubt become a favourite for USB peripheral building – in particular, USB-connected tools for electronics experiments. Today, we see one more addition to our Pico-based tool arsenal – a USB-I2C adapter firmware for RP2040 by [Renze Nicolai]. This is a reimplementation of the ATTiny-based I2C-Tiny-USB project and complies to the same protocol – thus, it’s compatible with the i2c-tiny-usb driver that’s been in the Linux kernel for ages. Just drag&drop the .uf2, run a script on your Linux system, and you will get a /dev/i2c-X device you can work with from userspace code, or attach other kernel drivers to.
The software will work with any RP2040 devboard – just connect your I2C devices to the defined pins and you’ll have them show up in i2cdetect output on your Linux workstation.
https://github.com/Nicolai-Electronics/rp2040-i2c-interface
Tomi Engdahl says:
https://hackaday.com/2022/11/01/the-best-threaded-holes-for-resin-parts/
Tomi Engdahl says:
DeltaPen: Drawing, Painting And Taking Notes Without The Drawing Tablet
https://hackaday.com/2022/11/01/deltapen-drawing-painting-and-taking-notes-without-the-drawing-tablet/
Over the decades, a lot of attempts have been made to try and make pens and pencils “smart”. Whether it’s to enable a pen to also digitally record what we’re writing down on paper, to create fully digital drawings with the haptics of inks and paints, or to jot down some notes on a touch screen, past and present uses are legion.
DeltaPen internal components and their function. (Credit: SIP, Guy Luethy et al.)
DeltaPen internal components and their function. (Credit: SIP, Guy Luethy et al.)
Where SIP Lab’s DeltaPen comes in as an attempt at a smart pen that acts more like the pen of a drawing tablet, just minus the tablet.
In addition the relative motion of the pen is measured, and there is haptic feedback, which allow for it to be used even for more delicate applications such as drawing
DeltaPen: A Device with Integrated High-Precision Translation and Rotation Sensing on Passive Surfaces
https://siplab.org/projects/DeltaPen
(a) DeltaPen is a digital pen that resolves precise translation and rotation (yaw, tilt) on uninstrumented surfaces. (b) Our device requires no surrounding cameras or specialized sensing surfaces and instead has all sensing hardware integrated. Two optical flow sensors and a pressure sensor enable high-precision pen input, which is complemented with an IMU as well as components for supporting vibrotactile feedback. DeltaPen processes optical flow from our dual-sensor design to derive precise translation and yaw input, monitors pressure input to detect precise contact with a surface, and senses gravity to obtain tilt. (c) Besides precise translation, DeltaPen also senses rotational movements for input. In this photo sorting application example, the user can drag pictures and rotate them at the same time.
Tomi Engdahl says:
Desk PM2.5 Air Quality Display
AQ sensor that get mad when air get bad
https://hackaday.io/project/187999-desk-pm25-air-quality-display
Tomi Engdahl says:
https://hackaday.com/2022/11/01/plywood-lamp-has-customizable-light-output/
Tomi Engdahl says:
https://hackaday.com/2022/11/01/reproducing-vinyl-records-in-resin/
Pirating Music With Resin – How will it sound?
https://www.youtube.com/watch?v=6PW0RFSIW5Y
Tomi Engdahl says:
https://hackaday.com/2022/11/01/dana-sibera-creates-devices-that-dont-exist/
Tomi Engdahl says:
Super Glue and Rubbing Alcohol Hack | Super Glue Strength Test | How Strong is Super Glue?
https://www.youtube.com/watch?v=rC7MlFjl2oI
Learn a super glue accelerator hack with rubbing alcohol as well as its bond strength with metal. Super glue takes a long time to dry and an accelerator speeds up the drying time but what does it do to the bonding strength? See how strong a drop of super glue is from a simple test.
00:00 Intro
00:48 Prep & setup
01:56 Rubbing alcohol activated strength test
02:27 Plain super glue strength test
03:14 Results
03:37 Extra
That Old Super Glue And Baking Soda Trick
https://www.youtube.com/watch?v=4uhCCQRfQew
My Oakley sunglasses broke. Instead Of replacing the earpiece, I repaired them with super glue and baking soda.
Viewer comments:
The interesting thing about this is the chemistry behind it. Super Glue contains an acidic inhibitor. When it is exposed to the humidity in the air, the acid gets diluted and the glue cures. The alkaline Baking Soda both accelerates the curing (neutralizing the acidic inhibitor) and performs the same role as gravel does in concrete.
If you need significant structural strength, I would use epoxy. I know that a lot of model airplane builders use super glue structurally, but I wouldn’t trust it for anything serious.
I used to work in a high-end violin repair shop, we’re talking Stradivarius here. We used Hot Stuff (like crazy glue) to make hairline fractures disappear. Exact same process as this video but we used wood dust instead of baking soda. If the clients and buyers knew this they probably wouldn’t be too pleased.
The next luthier to work on the instrument will point out to the Strad owner what that shop did and the owner will sue the ass off the shop owner. No legitimate luthier would ever use anything other than hide glue on a vintage instrument.
I never saw Hot Stuff being used on a Strad, but one time while I was under a lot of stress I accidently made a hairline fracture on a tortoise shell frog (the piece that holds the hair) on a $20k cello bow. My teacher made it disappear under a microscope using the cyanoacrylate glue.
I learned about this working in R&D at Hasbro around ’89. Later, a friend and collegue improved on it by putting the baking soda in a squeeze bottle with a tapered nozzle. You can kind of squirt a powder/air mixture out almost like liquid. Makes it easy to apply the powder where you want it to go, which is the part I always found difficult.
As a furniture restorer, the quick glue also have accelerants. NFC accelerator is my go to choice.
Yes, we used to reinforce R/C Balsa Wood model planes firewalls and engine bays or any joint we wanted to be stronger. We used to fill the area with baking soda like a fillet and then add the CA and when using larger amounts it would smoke. Nice Job.
It was called pixie dust in model aircraft cycles. I found it expanded and as it was rock hard it was difficult to sand. My instructor did some jaw dropping things with regular PVA with the off bit of epoxy on areas where it was needed.
I had some good experience with glass sand since this is alkaline also. I repaired already lots of parts out of metal and plastic with it. Parts afterwards are usually more stable than the original because you can easily build up bridges and reinforcement ribs. See: https://www.youtube.com/watch?v=pVyonDKEeqE
Tks. It is well known that Na2CO3 (Baking Soda) is a hardener for Cyanacrylat (super glue). Else it would need much more time to harden because of the moisture in the air. Very creative idea to build up a “hill” with spreading Baking Soda on a well defined drop of Super Glue!
Tomi Engdahl says:
https://hackaday.io/project/188040-wifi-controlled-stepper-motor
Tomi Engdahl says:
https://hackaday.com/2022/11/02/keeping-an-eye-on-heating-oil/
Tomi Engdahl says:
https://hackaday.com/2022/11/02/laser-project-relies-on-steppers-rather-than-galvanometers/
Tomi Engdahl says:
Simple Wi-Fi Cat Door Solves The Extra Critter Problem, And Nothing More
https://hackaday.com/2022/11/02/simple-wi-fi-cat-door-solves-the-extra-critter-problem-and-nothing-more/
Take this simple stepper-powered cat door lock. For [Jason Winfield], the essential problem with his outdoor cat’s late-night demands for reentry was having to manually unlock the cat door after a quick visual check that no midnight snacks were along for the ride.
Tomi Engdahl says:
Low-Voltage DC Network Build Incited By Solar Panels
https://hackaday.com/2022/11/02/low-voltage-dc-network-build-incited-by-solar-panels/
Semi-autonomous DC power supply
https://peter.turczak.de/en/content/projects/home_dc/
Tomi Engdahl says:
https://hackaday.com/2022/11/04/adjusting-shelves-like-its-1899/
Tomi Engdahl says:
https://hackaday.com/2022/11/04/three-computers-one-keyboard-with-usb-triplexer/
https://turbanedengineer.wordpress.com/2022/11/03/usb-triplexer/
The Circuit consists of a 2 channel analog multiplexer 74HC4052, 2 opto-couplers and USB connectors. The power input from the USB triggers the Optocoupler which drives the data lines of the Multiplexer thus connecting the USB DATA lines D+ and D- to the USB of the peripheral, Mouse/Keyboard in this case. The diodes isolate the Power sources from each other, incase two PC’s were to be powered on accidentally.
Tomi Engdahl says:
https://hackaday.com/2022/11/04/3d-printed-newtonian-telescope-has-stunning-looks-hadley-breaks-the-bank/
Tomi Engdahl says:
https://hackaday.com/2022/11/04/plywood-bicycle-makes-frame-building-more-accessible/
https://openbike.cc/download/
Tomi Engdahl says:
https://hackaday.com/2022/11/04/hackaday-prize-2022-ultratower-is-a-powerful-gardening-vertical/
https://www.youtube.com/watch?v=nmxMxP_gI2U
Tomi Engdahl says:
https://hackaday.com/2022/11/05/the-seven-segment-display-thats-also-an-input-device/
Tomi Engdahl says:
The Great Resistor Embiggens The Smallest Value
https://hackaday.com/2022/11/05/the-great-resistor/
With surface-mount components quickly becoming the norm, even for homebrew hardware, the resistor color-code can sometimes feel a bit old-hat. However, anybody who has ever tried to identify a random through-hole resistor from a pile of assorted values will know that it’s still a handy skill to have up your sleeve. With this in mind, [j] decided to super-size the color-code with “The Great Resistor”.
Resistor color code from Wikipedia with white background
How the resistor color-code bands work
At the heart of the project is an Arduino Nano clone and a potential divider that measures the resistance of the test resistor against a known fixed value. Using the 16-bit ADC, the range of measurable values is theoretically 0 Ω to 15 MΩ, but there are some remaining issues with electrical noise that currently limit the practical range to between 100 Ω and 2 MΩ.
The Great Resistor
This device magnifies the color-code of your resistor
https://hackaday.io/project/188104-the-great-resistor
Tomi Engdahl says:
https://hackaday.com/2022/11/05/nanoassembly-with-water/
Tomi Engdahl says:
Creating Your Alarm On The Fly
https://hackaday.com/2022/11/05/creating-your-alarm-on-the-fly/
We suspect that most of us who use an alarm clock have our particular sound memorized. Common choices are annoying beeping, energetic marimbas, or what used to be your favorite song (which you have now come to despise). [Adam Kumpf] wanted a more pleasant alarm clock and came up with WakeSlow, an alarm clock audio stream, which is a spiritual successor to an earlier project he did called Warmly.
Some might say, “an audio stream? You could create an acceptable alarm tone generator with a 555 and a 2N2222”. The idea behind WakeSlow is to use your existing internet-connected alarm clock that can play an audio stream. You generate a URL using WakeSlow, and it plays the alarm. A custom URL is helpful since it incorporates weather data, letting you know if it’s going to rain, blowing wind, or be sunny that day. It mixes CC0 audio to form the stream, and includes a 5-minute fade to wake you up gradually. After five minutes, it’s jazz time, and it plays a sample of some CC0 jazz.
https://wakeslow.kumpf.cc/
Tomi Engdahl says:
https://hackaday.com/2022/11/05/when-only-a-to92-will-do/
Colorful Homemade TO-92s
Cursed sand and trans-istors! Messing around with one of electronics’ most iconic form factors.
https://hackaday.io/project/188003-colorful-homemade-to-92s
Tomi Engdahl says:
https://hackaday.com/2022/11/05/wall-art-with-a-moving-coil-or-two/