‘Dead Drops’ is an anonymous, offline, peer to peer file-sharing network in public space. USB flash drives are embedded into walls, buildings and curbs accessible to anybody in public space. Everyone is invited to drop or find files on a dead drop. Plug your laptop to a wall, house or pole to share your favorite files and data. Each dead drop is installed empty except a readme.txt file explaining the project. ‘Dead Drops’ is open to participation. If you want to install a dead drop in your city/neighborhood follow the ‘how to’ instructions and submit the location and pictures.
There's a database of dead drops around the world, with map coordinates, photographs of locations, and instructions for adding your own. Of course, you're sticking a random USB device into your computer, you never know what's going to be on it so be sure you understand the risks before going on an expedition.
An acoustic coupler is a useful tool for dialing up to the internet when you have a phone available, but no phone jack to plug into. I "built" my own acoustic coupler out of a phone and a 9 volt battery. I say 'built', but really, there was almost no building involved. Here is a crude drawing of the acoustic coupler hooked up to a laptop and ready to connect to the internet through a phone booth.
This project aims at building an ultra low power adapter (< 1uA quiescent current) that you can bring onto modern smart energy meters to read the energy usage.
The optical interface consists of an IR photodiode to read data from the smart energy meter, and an IR emitter to send data to the smart energy meter. The infrared reader has an automatic calibration to ambient light conditions to be more resilient against ambient infrared light.
4 wires: VCC, GND, RX and TX. RX is for receiving UART data from a microcontroller, TX is for sending the optical data to a microcontroller. So usually you want to connect TX to the UART input of your microcontroller to get your readings from the smart meter. RX can be left unconnected if not used. The supply voltage may be between 1.8V and 5.5V.
This DIY drone is small in size and can be built using easily available components such as ESP32 modules, MPU6050 IMU, coreless motors, and plastic propellers.
Simple board to test various USB cables! (Note the USB standard helps to identify these USB-C, cables that are compliant with the standard will have selected pins according to cable and connector specification release).
Plug in your cable to both sides and see which signals light up!
FOR CABLE USE ONLY. DO NOT EVER PLUG THIS IN TO A DEVICE, THE PINS ON ONE SIDE ARE ALL SHORTED TOGETHER AND THAT COULD BREAK IT!
You can buy the boards from just about any manufacturer and build them yourself. Hopefully your fine soldering skills are up to the task (mine aren't)...
Tiny BASIC in Python (tbp) is an implementation of the Tiny BASIC language first proposed by Dennis Allison in response to Bill Gate's "An Open Letter to Hobbyists." In 1976, Dr. Tom Pittman developed his version of Tiny BASIC, which was one of many developed at that time. Where the original Tiny BASIC fit into 4K of memory, tbp is, ahem, a LOT larger, but does have a full debugger, linter, and runs on macOS, Linux, and Windows. So, pull up your bell bottom jeans, slap an 8-track tape into the stereo, and see what it was like for your grandparents when they programmed computers. Let's get groovy with the good vibes!
Supports all 12 statements and the two functions of the original, including USR. Supports all 26 variables, A - Z. Supports loading and saving programs to/from disk. Has a built-in linter and debugger.
The project notes are fascinating: https://john-robbins.github.io/tbp/project-notes
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. It includes a cross-compilation toolchain, root filesystem generation, kernel image compilation and bootloader compilation. Thanks to its kernel-like menuconfig, gconfig and xconfig configuration interfaces, building a basic system with Buildroot is easy and typically takes 15-30 minutes. The X.org stack, Gtk3, Qt 5, GStreamer, Webkit, Kodi, a large number of network-related and system-related utilities are supported.
Github: https://github.com/buildroot/buildroot
Official Git repo: https://gitlab.com/buildroot.org/buildroot/
A business card which is also a cell phone that is programmed to call the person on the card. This is really cool.
Every item is for either your Commodore PET, VIC-20, C64, C64c, SX-64, C16, Plus/4, C128 or C128D. Every product is currently commercially available or coming soon. That means that while you browse this guide, if you see something cool you can order it and have one for yourself.
The items are grouped into 12 broad categories and subgrouped thematically to help you find that expansion for your Commodore 8-bit that you never even knew existed, without first needing to know who makes or sells it.
Some items have feature pages, and more feature pages will be added over time. A feature page describes the primary function and use of the product, shows up-close photographs, lists the models of Commodore it is compatible with and links to the product's homepage and documentation. It also lists prices and gives clear instructions about how you can order it. The feature pages open up comments for the community to leave reviews, and to ask and answer questions.
The EHT is an international collaboration that has formed to continue the steady long-term progress on improving the capability of Very Long Baseline Interferometry (VLBI) at short wavelengths in pursuit of this goal. This technique of linking radio dishes across the globe to create an Earth-sized interferometer, has been used to measure the size of the emission regions of the two supermassive black holes with the largest apparent event horizons: SgrA* at the center of the Milky Way and M87 in the center of the Virgo A galaxy. In both cases, the sizes match that of the predicted silhouette caused by the extreme lensing of light by the black hole. Addition of key millimeter and submillimeter wavelength facilities at high altitude sites has now opened the possibility of imaging such features and sensing the dynamic evolution of black hole accretion. The EHT project includes theoretical and simulation studies that are framing questions rooted at the black hole boundary that may soon be answered through observations.
By linking together existing telescopes using novel systems, the EHT leverages considerable global investment to create a fundamentally new instrument with angular resolving power that is the highest possible from the surface of the Earth. Over the coming years, the international EHT team will mount observing campaigns of increasing resolving power and sensitivity, aiming to bring black holes into focus.
AlgorithmWatch is a human rights organization based in Berlin and Zurich. We fight for a world where algorithms and Artificial Intelligence (AI) do not weaken justice, democracy, and sustainability, but strengthen them.
A personal website that bills itself as unix_surrealism.
The device is HID mouse controller with 4 buttons. There are: left mouse click, right mouse click, wheel up and wheel down as buttons. Connected to PC by Bluetooth. The controller is implemented as a ring on the hand. Designed for left and right handed execution. The device is based on the Seeed Studio XIAO nRF52840 microcontroller, it has its own battery power supply. The battery is of course charged when the USB cable is connected. Charging is indicated by a green LED. Magnetic cable can be used. Used together with Leap Motion and fingers, it eliminates the need for a mouse in the cockpit and allows hands/fingers to operate the buttons.
Github: https://github.com/rafgaj/Mouse-buttons-and-wheel/tree/main
Greyprints: https://www.thingiverse.com/thing:5886564
Welcome to 101 Things, a collection of projects that celebrate creativity and hands-on ingenuity. If you share a passion for making things, you've come to the right place. Each project uses simple designs, and basic tools, to push the creative boundaries of a home tinkerer. Join me on this exploration of crafting, coding, and constructing, as we unlock the magic of making, one project at a time.
SwitchBoard is a prototype meta-programming environment. It is meant as a proof-of-concept of novel ways of thinking about software creation, as informed by the philosophy of Disability-Driven Development.
SpoonStack is a collective effort of disabled, queer, neuro-beautiful, and otherwise marginalized people. Our goal is to approach the creation of digital technology - apps, games, social communities, and more - in a fundamentally new way. We don't just want to make things ourselves, though; we want to share the ability to create with everyone.
A collection of things for cabin living.
The project is an exploration of ideas. Always follow appropriate safety procedures, consult local laws and ordinances regarding safety and construction, and never assume anything is safe until verified. The author is not responsible for any damage to property, injuries, or worse, which may be caused by using any of the information presented here.
hello i am maia arson crimew (it/she) and i am gay, mostly for girls, and i'm a tiny kitten :3 i know lot's of things about cyber security, programming and far too little about music but i still try to do all those things at once.
In the spirit of Feynman's immortal words, the goal of this project is to better understand the internals of databases by implementing a relational database management system (RDBMS) (sqlite clone) from scratch.
This project was motivated by a desire to: 1) understand databases more deeply and 2) work on a fun project. These dual goals led to a:
- relatively simple code base
- relatively complete RDBMS implementation
- written in pure python
- No build step
- zero configuration
- configuration can be overridden
This makes the learndb codebase great for tinkering with. But the product has some key limitations that means it shouldn't be used as an actual storage solution.