FreeRTOS Projects

SVITRIX is an open-source, AI-developed firmware for the Ulanzi Smart Pixel Clock TC001 and custom ESP32-based LED matrices. It features a robust MQTT and HTTP API for integration with home automation systems like HomeAssistant, supporting dynamic custom apps, visual effects, and real-time environmental sensor data.

A high-performance, multi-backend secp256k1 elliptic curve cryptography engine optimized for CPU, GPU, and embedded systems. It supports a comprehensive cryptographic stack including ECDSA, Schnorr, and ZK proofs, targeting platforms like ESP32, STM32, and RISC-V.

Zhilly is an AI-powered portable cybersecurity tool for ESP32-S3 devices, enabling voice-controlled pentesting, RF/IR signal manipulation, and HID emulation. Built on the ESP-IDF framework, it utilizes FreeRTOS, LVGL, and NimBLE to provide a sophisticated, hands-free interaction model for security researchers.

RuView is an open-source WiFi sensing platform that leverages Channel State Information (CSI) from ESP32-S3 sensors to perform human pose estimation, vital sign monitoring, and environment mapping. It utilizes a high-performance Rust-based processing pipeline and FreeRTOS-powered firmware to enable camera-free, privacy-preserving spatial intelligence at the edge.

AgentDeck is a multi-surface physical control interface for AI coding agents, enabling real-time steering of agents like Claude Code and Codex via hardware. It supports 13 different display surfaces simultaneously, utilizing a Node.js or Swift-based bridge to coordinate between terminal-based agents and devices like the Stream Deck+, Android tablets, and ESP32 displays. The system includes a sophisticated performance evaluation framework (APME) that uses local SQLite storage to track and optimize agent efficiency.

An enhanced USB/IP protocol implementation for the ESP32S3 that enables sharing physical USB devices over a network. Built on the ESP-IDF framework and lwIP stack, it optimizes transmission stability for peripherals like ST-Link debuggers, keyboards, and serial tools.

Clawy is an interactive JRPG-style desktop companion for Claude Code sessions that runs on an M5StickC Plus 2. It utilizes Claude Code hooks to provide real-time visual feedback, session statistics, and physical hardware controls for approving AI tool executions via a local WiFi connection.

SecureGen is an open-source hardware security device based on the ESP32 T-Display that serves as a TOTP/HOTP authenticator and a BLE-enabled password manager. It utilizes FreeRTOS for system management and hardware-accelerated AES-256 encryption to provide a secure, offline alternative to software-based authentication tools. The system features a built-in web management interface for configuration and credential management without requiring cloud connectivity.

UniGeek is a comprehensive multi-tool firmware for ESP32-based handheld devices, offering a suite of tools for WiFi security, Bluetooth analysis, and hardware module interfacing. Built on the Arduino framework and FreeRTOS, it supports a wide variety of hardware including M5Stack, LilyGO, and custom DIY builds.

A comprehensive guide and firmware collection for the MKS XDRIVE Mini, a high-performance FOC motor driver based on the ODrive architecture. It includes configuration scripts, Arduino-based CAN bus examples for ESP32, and critical procedures for firmware recovery and multi-driver synchronization.

A standalone digital photo frame firmware built with ESPHome for the ESP32-P4, designed to stream photos directly from an Immich server. It features smart portrait pairing, automatic tone adjustment, and local network privacy without requiring external hubs or cloud services.

ESP-PPB is an open-source, wireless, battery-powered platform for distributed, phase-coherent Wi-Fi Channel State Information (CSI) capture. Built on the ESP32-C3 and the ESP-IDF framework using FreeRTOS and LwIP, it achieves sub-PPB clock alignment by disciplining a VCTCXO using Wi-Fi Fine Timing Measurement (FTM). This enables advanced wireless sensing applications like angle-of-arrival estimation and indoor localization without the need for wired synchronization.

xf is a modern C++ library designed to extend FreeRTOS with more ergonomic, convenient, and safer APIs. It utilizes standard C++ features such as std::chrono and std::optional to reduce boilerplate and improve type safety without departing from FreeRTOS's original design patterns. The library is currently optimized for ESP-IDF and ESP32 microcontrollers but maintains portability for other platforms.

ESP32 Bus Expander is a companion firmware for the ESP32 Bus Pirate that adds 5 GHz Wi-Fi and 802.15.4 radio support. Running on an ESP32-C5, it acts as a radio coprocessor connected via UART to provide advanced wireless capabilities not available on standard ESP32-S3 boards. The project leverages the Arduino framework and is designed to be easily flashable via a web-based interface.

ESPAI is a lightweight C++17 library for ESP32 microcontrollers that provides a unified interface for interacting with major AI providers including OpenAI, Anthropic, Google Gemini, and local Ollama instances. It features non-blocking asynchronous requests via FreeRTOS, real-time streaming responses, and built-in conversation history management with automatic pruning. The library is optimized for constrained environments, offering secure TLS verification and a modular architecture for building intelligent IoT devices.

A high-performance NES emulator for the ESP32-S3, featuring full-speed emulation, I2S audio via the MAX98357A, and SD card ROM support. It utilizes the Nofrendo core and custom ST7789 display drivers to provide a smooth, portable 8-bit gaming experience.

Relive is an AI-driven photo curation and management system designed to rediscover memories stored on NAS devices. It features a distributed architecture with Go-based services, Python ML workers for facial recognition, and a custom ESP32-S3 color e-ink photo frame for daily content display.

PrintSphere is an ESP32-S3-based companion device for Bambu Lab 3D printers featuring a 1.75-inch circular AMOLED touch display. Built with ESP-IDF and LVGL, it provides real-time status monitoring, camera snapshots, and hybrid cloud/local network routing for seamless printer management.

A high-performance wavetable synthesizer firmware for ESP32-S3 and ESP32-P4 microcontrollers that plays SoundFont 2 (SF2) samples. It utilizes PSRAM for large sample banks, supports USB MIDI for plug-and-play connectivity, and features real-time audio effects like reverb and chorus.

A high-performance JPEG decoder and encoder module for MicroPython, specifically optimized for the Espressif ESP32 platform. It leverages the ESP-IDF component system to provide fast, memory-efficient image processing with support for block decoding, scaling, and rotation.

A low-power 2.4GHz wireless jammer built on the ESP32-S3 platform using nRF24L01+PA+LNA modules. It provides a comprehensive web interface for targeting WiFi, Bluetooth, and Zigbee signals across custom frequency ranges.

ClawPuter is an interactive pixel-art desktop companion for the M5Stack Cardputer (ESP32-S3) featuring a lobster character with rich animations and real-time weather integration. It leverages the OpenClaw AI gateway for streaming chat, voice-to-text via Groq Whisper, and bidirectional synchronization with a macOS desktop app.

XiaoClaw is an integrated firmware for the ESP32-S3 that combines voice interaction with a local AI agent. It utilizes the ESP-IDF framework and FreeRTOS to provide a complete system for voice I/O, LLM-powered reasoning, tool calling, and autonomous task execution.

An edge-only acoustic drone detection system built for the ESP32-S3 that uses FFT-based harmonic analysis to identify rotor signatures. It features encrypted LoRa communication between detectors and gateways, with seamless integration into Home Assistant via MQTT.

Hyperk is a minimalist, high-performance WiFi LED driver for ESP8266, ESP32, and Raspberry Pi Pico W microcontrollers. It provides low-latency control for addressable LEDs like WS2812B and SK6812, featuring native integration with HyperHDR and Home Assistant. The firmware utilizes FreeRTOS and the lwIP stack to manage high-speed UDP streaming and a responsive web-based configuration interface.

A real-time composite video generation system for the ESP32 that renders 3D wireframes, starfields, and geometric tunnels directly to CRT televisions. It utilizes a custom C++ engine controllable via a web interface or Pure Data with MIDI support for live visual performances.

OpenToys is an open-source framework for building local voice AI companions and robots using ESP32-S3 hardware and Apple Silicon for edge processing. It leverages Whisper ASR, Qwen3-TTS, and MLX-optimized LLMs to provide a fully offline, multilingual conversational experience without cloud dependencies. The project includes a desktop control application built with Tauri and React, alongside specialized Arduino-based firmware.

A Tamagotchi-style virtual pet simulator designed specifically for the M5Stack Cardputer ADV hardware. Built on the ESP32 platform using the Arduino framework, it features complex life stage management, mini-games, and an automated OTA asset provisioning system.

MiniOS-ESP is a lightweight, Unix-like command-line operating system designed for ESP32 microcontrollers with ST7789 display support. Built on a FreeRTOS kernel, it provides process management, a SPIFFS-based filesystem, and advanced networking and mathematical utilities.

Frekvens is an open-source ESP32 firmware modification for IKEA Frekvens and Obegränsad LED displays. It adds smart-home integrations, 35+ display modes, and real-time connectivity via MQTT and WebSockets, transforming static hardware into internet-connected IoT displays.

ESP-HACK is a versatile wireless research and pentesting firmware for the ESP32 platform, targeting Sub-GHz, Bluetooth, and Infrared protocols. It utilizes the Arduino framework and NimBLE stack to provide tools for signal analysis, protocol exploration, and GPIO integrations. The project is designed for use with custom hardware including CC1101 transceivers and OLED displays.

TNY-360 is an open-source, 12-DOF quadruped robot designed for research and interaction, powered by the ESP32-S3 microcontroller. It utilizes the ESP-IDF framework and FreeRTOS to manage complex tasks like inverse kinematics, computer vision via an OV2640 camera, and human-robot interaction. The project features a fully 3D-printable chassis and integrated sensors including Lidar, IMU, and I2S audio.

The Seeed Studio XIAO Debug Mate is an open-source multi-tool based on the ESP32-S3 designed for debugging embedded systems. It integrates a DAPLink debugger, a serial UART monitor, and a high-precision power profiler with visual feedback via an onboard 2.01-inch TFT LCD and a 36-LED matrix. The project utilizes FreeRTOS, LVGL for its graphical interface, and the TFT_eSPI library for display management.

QBIT is an open-source desktop companion robot and personal IoT avatar based on the ESP32-C3. It features a custom monochrome animation system, integrated Wi-Fi management via NetWizard, and seamless Home Assistant integration through MQTT. The project includes a full-stack web platform for remote interaction, device claiming, and community animation sharing.

This computer vision application demonstrates high-performance video streaming using USB UVC on STM32N6 series microcontrollers. It utilizes FreeRTOS for multi-threaded management and the Azure RTOS USBX stack to stream YUV422 video at various resolutions up to 800x480 at 30 FPS.

Power-Pico is a high-precision, low-power analysis tool and USB ammeter designed for embedded developers. It features an STM32F411 MCU running FreeRTOS and the LVGL graphics library, enabling real-time waveform display and current measurement from 1μA to 5A through multi-range automatic switching.