Skip to content
View ArcaneNibble's full-sized avatar

Organizations

@yahoo @theparanoids @llvm

Block or report ArcaneNibble

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Please don't include any personal information such as legal names or email addresses. Maximum 100 characters, markdown supported. This note will be visible to only you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
ArcaneNibble/README.md

Hi!

This is @ArcaneNibble, aka R! I'm a "hacker," "technologist," "catgirl," and many other descriptors. Here's a sampling of projects:

Electronics

I build PCBs, including all of these:

a collection of PCBs lying on a table (irl photo, not a render)

Project Status Description
remex PCB WIP CH32V307 RISC-V MCU dev board with gigabit Ethernet
PY32 fidget spinner PCB complete, firmware WIP deliberately-overengineered fidget spinner built around a Chinese ARM MCU, showing off just how cheap technology has become
LCSC parts tester PCB complete, testing WIP filling in missing documentation for some interesting parts found on LCSC
Hexpansion headphone jack Complete headphone codec for the EMFCamp Tildagon badge
Hexpansion infrared Complete, no firmware 38 kHz IR TX/RX for the EMFCamp Tildagon badge
JLCPCB test cat ears Complete, KNOWN ERRATA I wanted to quickly test JLCPCB's turn-key assembly process with a 4-layer board with an unusual shape
Yahoo! Paranoids DEFCON badge Complete conference badge with BLE, microphone, and blinkies
Yahoo! Paranoids Hackme Complete platform for running hardware hackmes and teaching colleagues about embedded systems
SLG46582 test board Shelved cheap I2C-programmable LDOs with additional capabilities. Uncertain future after the string of M&As ending in Renesas
CuteRunner Shelved cheap Xilinx/AMD CoolRunner-II dev board, killed due to chip shortage and parts becoming EOL
Project Chibi board Shelved Altera/Intel MAX V dev board. Single monolithic mega-board turned out to not be a good design. Shelved due to chip shortage

"Normal" software

Software for your computer, doing normal computer things. Contributions welcome!

Project Status Description
FastLZ in Rust Stable FastLZ reimplemented in pure-Rust
uksirius Proof-of-concept an effort to learn practical DSP by implementing a dial-up modem in pure software
Tile Corruptor Initial release a tool for viewing binary data as images in various formats, which can be useful for reverse-engineering and taking shortcuts using the brain's visual system's pattern matching

"Embedded-related" software

Software related to embedded systems, either because it runs on an embedded platform or because it primarily deals with problems in the embedded space. Contributions welcome!

Project Status Description
UF2 bootloader for CH32V2xx Stable an implementation of UF2 (USB Flashing Format) for the CH32V2xx RISC-V MCUs
embedded compiler toolchain stuff Proof-of-concept putting compilers in your browser and building a toolchain distribution
JEDEC programming file parser in Rust Stable parser and writer for .jed files, commonly used with CPLDs
JTAG abstraction layer in Rust Very incomplete, shelved attempting to build a good JTAG abstraction API
VHDL frontend Very incomplete, shelved attempting to build a VHDL frontend

"Reverse-engineering-related" software

Software related to reverse engineering or derived through reverse engineering. Contributions accepted, but please follow reverse engineering best practices wrt intellectual property concerns.

Project Status Description
xc2bit Rewrite in progress, all critical information exists in R's brain reverse-engineered documentation for Xilinx/AMD CoolRunner-II CPLD bitstreams
Project Nanjing Looking for contributors reverse-engineering the WCH Bluetooth Low Energy IP in order to eliminate the binary blobs
Project Chibi Rewrite in progress, all critical information exists in R's brain reverse-engineered documentation of Altera/Intel MAX V/II CPLD bitstreams
Project New Millennium Shelved rough reverse-engineering notes of Altera/Intel MAX 7000 CPLDs
AccuVote flash tools Shelved quick tool to dump and restore the flash memory of the AccuVote TSx voting machines used in some places in the United States

Fun and games

Project Status Description
Steam Deck gyro + flick stick controls for Minecraft Works, but unmaintained Implements flick stick motion controls as a Minecraft Forge mod. This gets better performance/accuracy and more-powerful integration with the game engine compared to doing it externally using Steam Input.

Hacks

These are proofs-of-concept, throwaways, quick-and-dirty solutions, etc. all of which are currently very unmaintained.

Project Interest in reviving? Description
Apple M1 AVD emulator Emulates the Cortex-M inside the Apple Silicon video decoder, as part of Asahi Linux work. Currently superseded by further work from others
Apple PCIe Bluetooth prototype driver Proof-of-concept to drive Apple Bluetooth. A proper Linux driver is now upstream. Might be useful as a reference for doing VFIO in Python
f055.cc I took over this domain a while back, but I haven't done a good job of marketing/promoting it. This is a registry of "16-bit numbers" that might be needed in some cases.
langtool Quick tool to look up Chinese words in CC-CEDICT and CC-Canto simultaneously in order to generate flashcards for Anki. This is probably only useful for ABCs (American-Born Chinese) heritage speakers with a highly specific background and upbringing.
pokeemeraldfont a demo abusing font ligatures and "emoji" fonts in order to turn the names of Pokemon into icons
BLE dog shock collar reverse engineering I, along with an anonymous friend, reverse engineered the Dr.Trainer BLE-controlled dog shock collars
Sega Saturn CD controller block I reproduced the published hack to dump the Sega Saturn CDB microcontroller
TPM2 LUKS very-old experiments with sealing LUKS keys to a TPM
propclone clone of the Parallax Propeller core, written when I was a teen

Popular repositories Loading

  1. wch-uf2 wch-uf2 Public

    CH32V UF2 bootloader

    C 38 4

  2. yavhdl yavhdl Public

    Yet Another VHDL tool

    Yacc 31 3

  3. tpm2-luks tpm2-luks Public

    Seal your LUKS disk encryption keys with a TPM2

    Shell 20 12

  4. project-chibi project-chibi Public

    Altera MAX V bitstream documentation -- CLEANUP PENDING

    Python 19 1

  5. KinglerPAR KinglerPAR Public

    Next-Generation FPGA Place-and-Route

    10 2

  6. f055-tuples f055-tuples Public

    A registry of tuples (0xf055, ?)

    HTML 9 2