By using an SDR receiver it is possible to capture, demodulate and decode the NFC signal between the card and the reader. Currently, detection and decoding is implemented for:
- NFC-A (ISO14443A): 106kbps, 212kbps and 424kbps with ASK / BPSK modulation.
- NFC-B (ISO14443B): 106kbps, 212kbps and 424kbps with ASK / BPSK modulation.
- NFC-V (ISO15693): 26kbps and 53kbps, 1 of 4 code and 1 of 256 code PPM / BPSK modulation (pending FSK).
- NFC-F (ISO18092): Preliminary support to 212kbps and 424kbps with manchester modulation.
HTTP status codes as haiku.
This is a GPS/radio tracker for high altitude balloons. It uses a GPS receiver to determine its position, and a LoRa transceiver to transmit that position to the ground. It is written in C for the Pi Pico microcontroller, using the official C/C++ SDK. The resulting executable code can be downloaded to the Pico using a serial programming/debug cable as described in the Pico C/C++ SDK manual. You will need a means of receiving the telemetry from your tracker. One popular option is the Pi LoRa HAB gateway.
M17 is developing a new digital radio protocol for data and voice, made by and for amateur radio operators.
Our protocol's voice mode uses the free and open Codec 2 voice encoder. This means there are no patents, no royalties, and no licensing or legal barriers to scratch-building your own radio or modifying one you already own.
This freedom to build, understand, and innovate is core to amateur radio, but has been missing from the commercially available digital voice modes. This is part of why amateur radio digital voice modes have largely stagnated since the 1990s and we're almost wholly dependent on commercial products that aren't well designed for amateur radio users.
M17 is about unlocking the capabilities that amateur radio hardware should already have.
Here you will find people working on radio hardware designs that can be copied and built by anyone, software that anyone has the freedom to modify and share to suit their own needs, and other open systems that respect your freedom to tinker.
A complete guide to 3DS (and 2DS) custom firmware, from stock to boot9strap.
Among other devices, Keelog sells a line of replacement power supplies for retro computers, from the Commodores to Amigas to Ataris. They are all brand new designs engineered with longevity and safety in mind.
A community maintained and organized list of resources to block, limit, evade and otherwise futz with ads, ad tech and web tracking. Browser based, network based, videos, e-mail, VPNs, and more.
IVRE (Instrument de veille sur les réseaux extérieurs) is a network recon framework, including tools for passive and active recon. IVRE can use data from numerous passive sensors and active scanning tools. You can think of it as a self-hosted and fully-controlled alternative to Shodan / ZoomEye / Censys, GreyNoise, and more. In the AUR.
NETINT
tio is a simple serial device tool which features a straightforward command-line and configuration file interface to easily connect to serial TTY devices for basic I/O operations. A simpler serial device tool for talking with serial TTY devices with less focus on classic terminal/modem features and more focus on the needs of embedded developers and hackers. tio was originally created to replace screen for connecting to serial devices when used in combination with tmux.
If it's a serial TTY device, it can talk to it. Sensible defaults (115200 8n1). Supports non-standard speeds, RS-485, multiple parity options.
Builds with Meson, for some reason. In the AUR.
Want to know what the locals think of their neighborhood?
A curated dynamic collection of websites offer a interesting and interactive experience for users. With real-time data (most of it), engaging maps, and visually stunning data visualizations, this collection is a treasure for enthusiasts of air industry, space, history, world statistics and more!
A collection of tools, calculators, converters, generators, encoders, decoders, and more of common use to IT. Can be built by hand but it's probably easier to download the latest release and unpack that.
An online tool that generates attractive as well as accessible color combinations for websites.
A web-based sound synthesis, music production, and audio experimentation platform. It has features of traditional DAWs as well as additional tools to support modular style patching, dynamic custom code, and live looping. Web synth supports high performance and low latency realtime audio generation. It achieves this by compiling code for synthesizers, effects, and other audio nodes from Rust and other specialized languages into WebAssembly and running it on the dedicated audio thread. This offers near-native performance and jank-free playback.
Versatile 8-operator polyphonic FM Synthesizer. Fully functional MIDI editor. Two programmable loopers for samples and MIDI. Dynamic compilation of DSP code written in Faust and Soul via WebAssembly. Modular synth-style utilities like LFOs, random voltage sources, and quantizers. Variety of visualizers including oscilloscope and spectrum analyzer. Support for building custom UIs with many input types and markdown notes. Supports hardware MIDI keyboards and controllers via WebMIDI.
Optional MySQL database back-end for storing stuff like presets.
QRM.guru has been developed to assist Radio Amateurs in dealing with RF noise and interference. This is an educational and reference resource. The information provided on these pages is not unique or regarded as a new discovery. QRM.guru and the developers provide the information on these pages in good faith and obtain no monetary benefit for their efforts. QRM.guru is a volunteer powered resource.
This project seeks to provide "travel advice" based on laws and practical safety within various jurisdictions. It is not geared towards people living in a state. However, information that might impact travelers in different situation will be mentioned. For instance, someone assigned to a business project for several months in a state may need to utilize medical care. Others may travel with children and be concerned about how this could be seen as child abuse or cause child custody issues.
This is not legal advice, and is not put together by a lawyer. This information is not guaranteed to be up-to-date or accurate. You should consult with an attorney with any questions.