@OhWaitDaily

Wait, what? Daily DIY that actually works. News you'd screenshot to the group chat.

Joined October 2023
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  • Following218
  • Followers55
10Media
New paint. Same chaos. DIY that shouldn't work. News that shouldn't be real. If it makes you say oh wait, it belongs here.
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Stanford just sent wireless data using static. No radio signal. The transmitter flips its antenna between open and short circuit, and the receiver reads the noise as "hotter" or "colder." 1s and 0s. Up to 1,000x less energy than normal radio. techxplore.com/news/2026-10-…

Background static can carry wireless data without an actively generated radio signal

Stanford researchers recently revealed how a seemingly physics-defying wireless communication technology works. The new technology, called thermal noise communication, harnesses background static...

techxplore.com
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Super Mario Galaxy. On a Game Boy Advance. Oh wait, it's actually playable. One dev squeezed the Wii game onto 2001 hardware, star pointer and all, and put the code on GitHub. You bring your own copy of the game. hackaday.com/2026/10/20/supe…

Super Mario Galaxy Now Runs On The GBA

Joining the ranks of fresh backported Nintendo games is Super Mario Galaxy for the Nintendo Game Boy Advance (GBA), courtesy of [Tobias Friedly], AKA [Tobi]. In a recent video he announces the rele…

hackaday.com
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A fridge that runs on fire and road salt. Oh wait, it actually gets cold. Boil salty water, drop the pressure, and water boils cold enough to chill. First test hit about 5°C on a 16°C day. hackaday.com/2026/10/18/off-…

Off-Grid Refrigeration Using Fire And Salt

Refrigeration has been a challenge for humanity since the start. Ancient civilizations in dry climates like Persia and Egypt could use evaporative cooling on a large scale with specialized architec…

hackaday.com
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Your smart light switch can now run DOOM. Kind of. Someone jammed a DOOM-looking tech demo onto a Sonoff Basic R2. Play it from any browser on your network. It still works as a switch. hackaday.com/2026/10/16/runn…

Running DOOM (Sort Of) On A Sonoff Smart Switch

It’s often said in this community that DOOM can be made to run on anything, and as time goes on, that’s becoming more and more accurate. We’re at the point now that every “n…

hackaday.com
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One button. One game: the Chrome offline dinosaur. The sneaky part: swipe this handheld past your phone and a hidden NFC tag flips it to airplane mode. Anti-doomscrolling in a Game Boy costume. hackaday.com/2026/10/14/sing…

Single Button, Handheld Gaming Console

Those of us who grew up in the 70s and 80s might be familiar with the Atari 2600 console and its now relatively unrecognizable (by modern standards) controller with only a single button and stiff w…

hackaday.com
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Someone counted the plastic bottles it takes to make 1 kg of 3D printer filament. Thirteen 5-liter bottles. A 10-liter. Two 8-liters. One lonely 1.5. Then they still have to print with it. On a DIY printer made from scrap. hackaday.com/2026/10/13/coun…

Counting The PET Bottles Needed To Make 1 Kg Of Printer Filament

In countries where PET bottles do not get slapped with an additional fee that induces you to return it for recycling and said fee back, the resulting piles of discarded bottles have led many enterp…

hackaday.com
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DARPA asked for an aircraft that can lift 4x its own weight. The weird designs showed up. A totally normal electric helicopter won anyway: 112 lb of payload, 3.84x its dry weight. First gas engine? Third place. hackaday.com/2026/10/12/darp…

DARPA Lift Challenge Won By Helicopter

America’s mad scientists all have one dream: DARPA money. The Defense Advanced Research Projects Agency regularly throws round sweet, sweet tax dollars to push the envelope on any number of t…

hackaday.com
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A door sensor that runs on garlic peel. Open the door, the peel rubs against polyethylene, and out comes about 210 volts AC. No battery to die overnight. Vampires now have bigger problems than the alarm. hackaday.com/2026/10/08/intr…

Introducing The Garlic-Powered Door And Window Sensor

Most home security sensors require a chemical battery or external power source to operate, which can be a point of weakness. If the battery in a window or door sensor dies overnight and nobody is t…

hackaday.com
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Someone built a 27-foot R/C airship that runs on fire. Two barbecue-size propane tanks heat the air, an 18" prop pushes it, and a winch servo from an R/C sailboat steers the rudder. It's a hot air balloon that takes directions. hackaday.com/2026/10/06/dont…

Don’t Worry, This R/C Airship Is Supposed To Be On Fire

We’ve had a lot of flying hacks here over the years, and that includes just about any way to get airborne you can think of — but very few of those have been airships. Fewer still have b…

hackaday.com
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Oh wait, an LED can listen too. Luca Soltoggio got two ESP32s swapping encryption keys over light, with one single LED on each side acting as both transmitter and receiver. Turns out LEDs moonlight as photodiodes. hackaday.com/2026/10/05/two-…

Two Microcontrollers Talking, All It Needs Is An LED

There are some projects that seem at first sight to be easy, but anyone who tries them finds a whole heap of unexpected problems and turns to the off-the-shelf device. PCB antennas for example, or …

hackaday.com
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Google Japan built a keyboard where the keys ride a conveyor belt. Made a typo? Wait for backspace to come back around. The STLs and build guide are on GitHub, so yes, you can build one. hackaday.com/2026/10/05/conv…

Conveyor Belt GBoard Brings The Keys To You

It must be April in October again, because Google Japan has a new, hilariously impractical reimagining of the keyboard: a conveyor belt. This time it’s on GitHub with firmware, STLs, and a fu…

hackaday.com
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A playing card sticks to the ceiling. Just a vibe motor. No glue. Vibration pushes air out of the gap. Pressure drops. Physics does sticky. hackaday.com/2026/10/02/usin…

Using Vibration To Make Stuff Stick Contact-Free To Ceilings

Generally making stuff stick to something like a ceiling requires resorting to suction cups, glue or something much more permanent, but [Steve Mould] starts his video featuring a playing card that …

hackaday.com
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The whole computer is Vim now. ESP-Vim boots an ESP32 straight into the editor. Files, git, MicroPython. Bluetooth keyboard and good luck getting out. hackaday.com/2026/10/01/the-…

The Whole Computer Is Vim

Love it or hate it, Vim, the vi-compatible minimalist editor, is a common denominator between a huge array of operating systems. If you need to edit a file, it’s usually safe to expect it the…

hackaday.com
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DIY jet turbine. Outer casing: a gas cylinder and a kid's steel bottle that happened to fit. AlfMart CNC Garage spent months on tolerances. Starter clutch already needed a redo. Ignition waits on a custom balancing rig. Prefer roaring over shrapnel. hackaday.com/2026/09/30/asse…

Assembling And Testing A DIY Jet Turbine

After many months of painstaking work, [AlfMart CNC Garage] over at YouTube has finally reached the stage where he can fully assemble his DIY jet turbine and commence testing. Even if deceptively s…

hackaday.com
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Mechanical TV, but make it 3D and playable. AncientJames spins a drum full of holes over LED matrices. Light-field view. ~100x48 per eye. Still runs DOOM. hackaday.com/2026/09/29/elec…

Electromechanical TV Goes 3D With This Light-field Display

A mechanical TV — the kind that makes an image with a Nipkow disk and a single lamp with some help from persistence of vision — is easy enough to wrap your head around. Moving that tech…

hackaday.com
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Home automation, literally in a nutshell. ESP32-C3 stuffed in a walnut fires IR at dumb TVs. Magnets keep the snack closed. hackaday.com/2026/09/28/an-i…

An IR Blaster Project, In A Nutshell

The speed that computers have gotten smaller is a bit mind-bending. Most of us now walk around with computers in our pockets that would have rivaled the supercomputers from a few decades ago. And, …

hackaday.com
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A 40-year-old Commodore 128 is plotting live ships right now. Assembly grabs AIS over serial. BASIC 8 draws the map. Same vibe as that NES that tracked planes. hackaday.com/2026/09/25/comm…

Commodore 128 Becomes Marine Vessel Tracker

The Automatic Identification System (AIS) is a maritime radio communications tool used to allow different vessels to identify each other and communicate their movements and other telemetry. You can…

hackaday.com
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Someone replaced the DJ laptop with a $50 ESP32. ESP32-P4 + 4.3" touchscreen talks to a Pioneer controller, reads the USB stick (MP3/WAV/FLAC), and draws the waveforms. No Windows Update mid-set. hackaday.com/2026/09/24/stan…

Standalone DJ System Runs On ESP32

There are plenty of ways to DJ with a laptop and various controller setups. However, if you find hauling around an entire computer can be a bit much, you might like this lighter system from [Daniel…

hackaday.com
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This cube jumps. Mid-air it flips. Then it lands on one EDGE and just… stays there. ESP32 + reaction wheel. Your dice are soft. circuitdigest.com/news/this-…
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Mazda put a go-kart in a Samsonite in 1991. Someone just rebuilt it with a pocket-rocket motor. Hits 20 mph. Then things get too frightening. hackaday.com/2026/09/21/the-…

The Mazda Suitcase Car Rides Again

Once you arrive at your destination via plane, it can be a drag waiting for a rental car. Why not bring your own with a replica of the Mazda suitcase car? The heady days of the 90s brought us many …

hackaday.com
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