Projects sharing features with Relativty

Revive is an OpenVR runtime wrapper and virtual reality driver emulator. It serves as a hardware compatibility layer that enables virtual reality games designed for specific proprietary hardware to run on OpenVR compatible devices. The project functions by translating proprietary system calls into open standards, which allows software designed for the Oculus Rift to operate on other headsets such as the HTC Vive or Valve Index. It achieves this by mimicking the identity of supported hardware to bypass software compatibility checks. This is implemented through a runtime wrapper that intercept

Open_vins is a visual-inertial odometry framework and SLAM system designed for robotic state estimation. It uses an Extended Kalman Filter to fuse high-frequency inertial sensor data with visual feature tracks to estimate the position and orientation of a moving device. The system features a sensor calibration suite for calculating intrinsic and extrinsic parameters, as well as temporal offsets between cameras and inertial measurement units. It includes a manifold interpolator that uses B-Spline curves over the special Euclidean group to produce smooth trajectory paths between discrete pose e

VINS-Mono is a monocular visual-inertial odometry system and loop closure SLAM framework. It functions as a real-time state estimator that fuses data from a single camera and an inertial measurement unit to determine a robot's position and orientation. The project includes a non-linear optimizer for robotics and tools for sensor calibration. The system distinguishes itself through online sensor calibration, which automatically determines spatial extrinsics and temporal offsets between the camera and inertial unit during operation. It also incorporates rolling shutter distortion correction to

AR.js is a web-based augmented reality framework used to create immersive experiences directly in a browser using WebGL and WebRTC. It provides a cross-platform runtime that executes on mobile devices and head-mounted displays without requiring a dedicated application installation. The framework includes a marker-based engine for detecting physical patterns or barcodes to anchor digital overlays, a location-based tool for positioning entities via GPS coordinates, and a face tracking library for anchoring content to human facial features. It supports multi-marker simultaneous tracking, custom

ElectronBot is a robotic system comprising custom PCB designs, an embedded circular display driver, an I2C servo controller, and a communication bridge. It integrates hardware schematics and layouts for control boards and sensor arrays with firmware designed to render images and animations on integrated circular screens. The system features a control bridge that links the physical robot hardware to the Unity game engine for real-time visualization and high-level control. Data exchange between the host computer and the embedded hardware is handled via a custom USB CDC serial communication prot

Mayhem-Firmware is a custom firmware for the PortaPack add-on that transforms a HackRF software-defined radio into a standalone handheld device capable of receiving, transmitting, and analyzing radio signals across a wide frequency range. The firmware provides a complete operational environment with an event-driven touchscreen interface, a menu-driven application launcher, and a real-time sample streaming pipeline that connects the hardware abstraction layer to a suite of modular applications. All user data, including frequency presets, captures, and configuration files, are stored on a remova

TinyGo is a specialized compiler and development toolkit designed to bring the Go programming language to resource-constrained microcontrollers and WebAssembly environments. It provides a bare-metal runtime environment that enables high-level code execution without the need for a traditional operating system, utilizing an LLVM-based backend to generate efficient machine instructions. The project distinguishes itself through aggressive optimization techniques tailored for small hardware, including a static memory allocation strategy and whole-program dead code elimination that significantly re

IronOS is a low-level soldering iron firmware and thermal control system. It serves as a comprehensive embedded UI framework and hardware controller designed to manage heating elements, temperature regulation, and power delivery for soldering tools. The project distinguishes itself through a specialized USB-PD power controller that negotiates standards like USB-PD EPR and Quick Charge to maximize available wattage. It also features a wireless BLE hardware controller for monitoring real-time telemetry and modifying system parameters from a remote application. The system covers broad capabilit

Klipper is a distributed motion control system and 3D printer firmware that splits high-level motion planning on a host computer from low-level timing execution on microcontrollers. It utilizes a host-based motion planner to calculate optimized trajectories and a real-time step generator on the microcontroller to produce precise motor pulses. The system functions as a configurable kinematics engine, allowing hardware settings and movement kinematics to be tuned via configuration files without the need to recompile or flash the firmware. This architecture supports multi-controller hardware coo

MicroPython is a lean implementation of Python 3 optimized to run on microcontrollers and other resource-constrained systems. It serves as a cross-platform embedded runtime and hardware abstraction layer, providing a firmware framework that maps high-level software commands to specific microcontroller registers across diverse processor architectures. The project functions as an embedded language interpreter that enables rapid prototyping on hardware through an interactive read-eval-print loop. It supports a wide range of target environments, including ARM, ESP32, STM32, RISC-V, and WebAssembl

This repository is a comprehensive collection of reference implementations and sample libraries for the Universal Windows Platform. It provides practical examples of how to use Windows Runtime APIs to build cross-device applications, including detailed guidance on XAML-based declarative user interfaces and DirectX-integrated rendering. The project distinguishes itself by providing a wide array of hardware integration suites, covering low-level communication with USB, Serial, I2C, SPI, and GPIO peripherals. It includes specialized implementations for mixed reality holographic rendering, advanc

Blackmagic is a GDB server for embedded hardware that translates GDB remote protocol messages into JTAG and SWD commands. It functions as an ARM and RISC-V debugger and hardware debug probe manager, enabling users to inspect memory, control execution, and manage registers on ARM Cortex and RISC-V cores. The project distinguishes itself by acting as a remote hardware debugging bridge that can stream GDB server traffic over TCP/IP to control physical hardware from a remote machine. It also provides a JTAG and SWD interface to connect host computers to target hardware and serves as an embedded f

TimelineJS is a JavaScript library for creating interactive, chronological narratives and visualizing multimedia sequences. It functions as a tool for data-driven storytelling, rendering a navigable interface where events are organized by date. The system generates these narratives by importing event information from external sources, such as JSON files or spreadsheets. It transforms external media links into embedded video and audio elements and synchronizes the current view with the browser address bar to allow for direct linking and bookmarking. The library covers broad capabilities for d

Open-spectrometer-hardware is an open-source scientific instrument designed for capturing and analyzing visible light spectra. It functions as a hardware platform that connects to a computer to perform spectral data collection and light intensity analysis for research and educational applications. The system utilizes a modular chassis fabricated from laser-cut components, which ensures consistent alignment of the internal optical elements. It captures light through a diffraction-grating path and converts the resulting intensity into digital data using a linear sensor array. This data is trans

The Intel RealSense SDK is a software development kit providing drivers and libraries for interfacing with depth cameras to capture color, depth, and infrared data streams. It includes a depth camera driver for device discovery and sensor configuration, a stereo vision library for computing depth maps and aligning frames, and a 3D point cloud generator to transform depth and infrared frames into spatial representations. The SDK distinguishes itself through on-chip depth calculation and stereo calibration, using internal vision processors to reduce host CPU load. It supports hardware-level str

FAST_LIO is a real-time SLAM system and LiDAR-inertial odometry package designed for simultaneous localization and mapping. It functions as a state estimation engine and 3D mapping tool that fuses LiDAR point clouds with inertial measurement unit data to provide robust robot state estimation. The system utilizes a tightly-coupled sensor fusion approach with an iterative Kalman filter to estimate position and orientation. It distinguishes itself through direct point-to-plane matching, which calculates odometry by matching raw lidar points to the map surface without manual geometric feature ext

RapidRAW is a non-destructive RAW photo editor and digital asset manager designed for decoding manufacturer RAW formats and applying tonal and color adjustments. It functions as a professional image processor that ensures original source data remains unmodified by saving all edits, masks, and crops to sidecar files. The software features a specialized color grading suite using 3D LUTs, color wheels, and HSL mixers, alongside AI-powered utilities for subject isolation, automatic masking, and generative inpainting for object removal. It distinguishes itself with AI-assisted photo retouching and

This project provides custom firmware and a suite of management tools for wireless thermometers and hygrometers. It replaces manufacturer software to improve measurement accuracy, extend battery life, and unlock configuration options not available in stock firmware. The system differentiates itself through a comprehensive set of administration utilities, including a device configurator for managing Bluetooth advertising and transmission power, and an over-the-air flasher for wireless software updates. It also features a climate data visualizer to retrieve and graph historical temperature, hum

Ceres Solver is a C++ library for numerical optimization, specializing in non-linear least squares and unconstrained optimization problems. It serves as a framework for automatic differentiation and robust curve fitting, providing tools to solve large-scale mathematical models. The library is distinguished by its bundle adjustment capabilities, which exploit sparse matrix structures to refine 3D scene points and camera parameters. It utilizes dual-number automatic differentiation to compute derivatives of cost functions, removing the need for manual Jacobian derivation. The project covers a

Xtreme-Firmware is a custom operating system for the Flipper Zero designed to expand hardware capabilities and remove software restrictions. It functions as a multi-protocol signal emulator for capturing and replaying RFID, NFC, Sub-GHz, and Infrared signals to test hardware security. The project features a specialized USB HID attack framework for sending keystroke payloads and spoofing device identifiers over USB and Bluetooth. It also includes a WiFi penetration testing suite for scanning, sniffing, and sending deauthentication frames using a wireless development board. Broad capabilities

SensorsCalibration is a toolkit for computing the intrinsic and extrinsic parameters of cameras and LiDAR sensors in automotive environments. It provides tools for calculating internal camera focal properties, aligning LiDAR point clouds to 2D camera images, and determining the spatial transformations between multiple sensors and the vehicle coordinate system. The project includes a targetless calibration framework that aligns sensors to a vehicle by analyzing natural features in road environments without the need for specialized physical markers. It also supports factory calibration processe

Kalibr is a software suite for multi-camera calibration and visual-inertial parameter estimation. It provides a mathematical framework for determining intrinsic and extrinsic parameters across multiple cameras and calculating the spatio-temporal offsets between cameras and inertial measurement units. The project features a non-linear least-squares optimizer to minimize reprojection and inertial errors. It includes specialized tools for rolling-shutter camera calibration to estimate projection and distortion parameters for sensors that capture images row-by-row. The system covers a broad rang

Pose-animator is a system that maps real-time body and face tracking data to 2D vector illustrations. It functions as a skeletal animation engine and motion controller that translates human keypoint recognition into instantaneous SVG path updates. The project enables real-time motion capture from webcam feeds and pose extraction from static images. It utilizes a skeletal rig to link virtual bones to vector character surfaces, allowing for the animation of custom characters and interactive avatars. The tool incorporates client-side machine learning inference for processing camera frames, coor

crypto-signal is an automated cryptocurrency trading bot that generates buy and sell signals by running technical analysis on market data from multiple exchanges. The system is built around a config-driven signal pipeline that routes price data through a user-defined chain of indicators and thresholds, with analysis cycles triggered on a fixed schedule for continuous, hands-off monitoring. The project distinguishes itself through its modular, plugin-based indicator engine that allows technical analysis indicators to be added or removed without core changes, and its exchange-agnostic data laye

Zinx is a lightweight TCP server framework written in Go that provides a structured foundation for building scalable network applications. It combines a goroutine-pool worker model for concurrency control with message-ID-based routing, enabling efficient packet dispatching to registered handler functions. The framework distinguishes itself through its modular plugin architecture, which organizes server components like routers, connections, and message modules as interchangeable plugins for extensibility. It uses packet-header length prefixing for reliable TCP stream framing, assigns a dedicat

gsudo is a command-line utility for Windows that elevates any command with administrator privileges directly from the current console window. It functions as a sudo-style tool, detecting the active shell environment—whether CMD, PowerShell, WSL, or Bash—and running the elevated command natively within that shell without spawning a new window. The tool preserves full console features including colors, keyboard input, auto-completion, and I/O redirection during elevated execution. A key differentiator is gsudo's credential caching system, which stores UAC-approved tokens in a background daemon