FreeRTOS Projects

A Game Boy emulator and monster-battling RPG implemented as a Meshtastic module for the LilyGO T-Deck. It features a deterministic Gen-1 battle engine, a mesh-wide daycare system with save-file XP patching, and LoRa-based multiplayer battles, all running alongside standard mesh networking.

A high-performance ESP-IDF component implementing AES67 and RAVENNA audio-over-IP standards on the ESP32-P4 microcontroller. It features hardware-accelerated PTP synchronization, sub-millisecond latency, and ISR-driven DMA playback to ensure glitch-free audio streaming over Ethernet.

NRSuite is a modular wireless research toolkit that offloads the radio layer to an ESP32 connected via USB OTG to an unrooted Android device. It enables advanced Wi-Fi operations, BLE HID emulation, and BadUSB functionality within the Termux environment using a custom binary bridge protocol.

RisalDash is a C++ library for ESP32 and ESP8266 that automatically generates real-time web dashboards with zero front-end coding. It features a zero-waste architecture to minimize flash usage, built-in captive portal provisioning, and native integration with Home Assistant and AI agents via the Model Context Protocol (MCP).

An ESP32-based monitoring hub for the 'Cheap Yellow Display' (CYD) that tracks weather, space events, wildfires, and geological activity. It features a custom power management system called Somnus for instant-wake deep sleep and includes a robust calibration system to support various hardware revisions.

TeslaCAN is an open-source CAN bus modification firmware for the ESP32-C6 designed for Tesla Model 3 and Y vehicles. It enables FSD activation, driver-attention nag suppression, and real-time battery telemetry via a built-in LCD, WiFi dashboard, or Flipper Zero companion.

LuxDMX is an open-source Art-Net and sACN to DMX512 gateway designed for ESP32 and ESP32-S3 microcontrollers, featuring a live web-based diagnostic interface. It provides professional-grade lighting control with support for RDM, source merging (HTP/LTP), and multiple network interfaces including WiFi and wired Ethernet. The project utilizes a FreeRTOS-based architecture to ensure low-jitter DMX timing while simultaneously serving high-speed telemetry via WebSockets.

An ESP32-powered emulator for the Berbel BFB 6bT remote control, designed to integrate Berbel kitchen hoods into smart home environments. It features real-time status decoding, MQTT auto-discovery for Home Assistant, and utilizes the NimBLE stack to optimize memory usage.

A portable WiFi mapping firmware for the M5Stack Cardputer that scans 2.4 GHz networks and logs GPS-tagged data in WiGLE-compatible CSV format. It features active/passive scanning, a built-in web configuration portal, and automatic WiGLE uploads via HTTPS. The project runs on the ESP32-S3 and utilizes FreeRTOS for task management and system diagnostics.

AtlasCube is a feature-rich internet radio and smart clock firmware built for the ESP32-S3 using the ESP-ADF and LVGL libraries. It supports streaming various audio formats, Bluetooth A2DP/HFP via external modules, and local SD card playback, all managed through a comprehensive on-device GUI and a standalone web interface. The project is designed for independence from cloud services, offering local MQTT control, OTA updates, and a customizable event system.

VerhoBot is an open-source smart curtain robot based on the ESP32-C3 platform, designed to automate curtain movement for improved sleep cycles. It utilizes a TB6612FNG motor driver and N20 geared DC motor to provide quiet, battery-powered operation with integrated WiFi scheduling and a web-based management dashboard.

HEARD is a mesh network system of ESP32-based devices designed to monitor hiking group safety in remote environments without cellular coverage. It utilizes LoRa for multi-hop communication and GPS for real-time location tracking against pre-loaded GPX routes, featuring a firmware-in-the-loop simulator for protocol validation.

FrameFilm is a retro-styled digital film fridge magnet featuring a 3.6-inch color E-Ink display and an ESP32-S3 microcontroller. It utilizes specialized dithering algorithms to replicate a film aesthetic and supports wireless photo transmission via BLE through a web-based management tool or a WeChat mini-program.

Tomato32 is a Pomodoro timer application specifically designed for the Waveshare ESP32-S3-Touch-LCD-3.49 development board. It features a responsive touchscreen interface built with the LVGL graphics library and runs on the ESP-IDF framework using FreeRTOS. The project supports customizable timer profiles, smart power management, and personalized background assets.

An open-source implementation of the SAE J2534-1 v04.04 PassThru standard, designed to connect STM32F407-based CAN adapters to professional vehicle diagnostic software. The project includes a C# Win32 DLL for protocol handling and a FreeRTOS-based ESP32 simulator for bench validation.

A real-time aircraft tracking system built for the ESP32-S3 that visualizes live flight data from the OpenSky Network API. It utilizes a dual-core FreeRTOS architecture to handle concurrent networking and high-speed rendering across a dual-display setup, featuring a hybrid map system optimized for hardware with limited PSRAM.

A multi-modal robotic control system that translates spoken commands into physical actions using an ESP32-S3 for audio capture and an Arduino UNO for motor execution. The project integrates high-level AI services including Deepgram for transcription, GPT-4o for intent analysis, and 60db for text-to-speech feedback.

OpenC6 BIOS is an advanced modular firmware platform for the ESP32-C6 RISC-V microcontroller that implements a PC-like architecture by decoupling hardware initialization from application logic. Built on FreeRTOS and the ESP-IDF framework, it provides a standardized System Call Interface (ABI) for executing bare-metal payloads, a management engine running on the LP-Core coprocessor, and support for network-based booting and OTA updates.

Atome LM is a routed-ternary tiny language model designed for microcontroller-class RAM budgets, featuring bit-exact Python and C99 inference. It integrates ternary weights, a hybrid SSM/sparse-attention/local-conv block, and a byte tokenizer to enable efficient AI execution on hardware like the ESP32 and Cortex-M3.

FlipDeFlock is a specialized counter-surveillance and site survey tool for the Flipper Zero that utilizes an external ESP32 module for advanced wireless monitoring. It provides passive detection of Flock Safety ALPR cameras, Bluetooth tracker monitoring, and comprehensive Wi-Fi and NFC security auditing. The project features a custom 'Net Guardian' interface for real-time threat assessment and supports signal-based device homing without the need for directional antennas.

A specialized V2X and ITS G5 message logger that utilizes the ESP32-C5 to capture IEEE 802.11p traffic at 5.9GHz. It supports GPS integration for synchronized time and positioning, logging raw data to SD cards or USB for analysis in Wireshark and CANalyzer.

An autonomous virtual aquarium firmware designed for the ESP32-2432S028R 'Cheap Yellow Display'. It features a stylized dot-grid renderer, simulated aquatic life, and automatic backlight adjustment using onboard sensors.

Periscope-OS is a passive 2.4GHz RF spectrum analyzer and signals intelligence tool for the M5Stack M5StickS3. It utilizes the ESP32-S3's promiscuous mode for deep packet inspection of 802.11 frames, featuring a sonar-style radar UI and IMU-based spatial tracking. The project leverages SPIFFS for telemetry logging and the M5Unified library for hardware abstraction.

A networking library for ESP32 and ESP8266 that exposes local web servers to the public internet without port forwarding or complex cloud configurations. It leverages FreeRTOS tasks to handle background connectivity and supports multiple tunneling providers including WebSocket relays, localtunnel, and bore.

HomeTiles is a tile-based firmware for ESP32-P4 touch displays designed to function as a highly configurable Home Assistant dashboard. It utilizes LVGL for its touch-first UI and FreeRTOS for task management, providing features like MQTT integration, web-based drag-and-drop configuration, and on-device OTA updates. The project targets high-performance hardware including the M5Stack Tab5 and various Waveshare MIPI-DSI displays.

A self-contained SIP PBX designed for the ESP32-S3 that manages VoIP signaling without requiring external servers or cloud dependencies. It leverages C++17 and the ESP-IDF framework to provide a full-featured telephony environment where RTP media flows peer-to-peer, ensuring the microcontroller never becomes an audio bottleneck.

A specialized fork of Espressif's ESP-Hosted-MCU that unlocks low-level radio capabilities typically hidden by stock firmware, including 802.11p, CSI sensing, and FTM ranging. It operates as a wireless co-processor firmware for ESP32 chips, communicating with host MCUs over SDIO using FreeRTOS, lwIP, and NimBLE.

A portable biomedical monitor built on ESP32 and FreeRTOS that tracks ECG, SpO2, temperature, and respiration. It features a validated QRS detection algorithm, local OLED visualization, and a real-time web dashboard for remote patient monitoring.

Solar2MQTT is an ESP32-based firmware bridge that translates data from solar inverters to MQTT for integration with IoT platforms like Home Assistant. It supports a wide range of Chinese-manufactured inverters and features a web-based configuration portal, live JSON data streams, and support for both WiFi and Ethernet modules.

A secondary e-ink desk display designed for AI Agents like Claude Code and Codex, utilizing the M5Paper V1.1 hardware. The project features a Python-based daemon for server-side rendering and an ESP32 firmware that supports Wi-Fi, BLE, and USB communication.

Quectel UniKnect is an embedded software framework designed to simplify the integration of Quectel wireless modules with STM32 microcontrollers. It utilizes FreeRTOS for real-time task management and provides an API-driven interface that eliminates the need for manual AT command handling. The project includes a complete build system, cross-compilation toolchain, and support for essential network protocols like MQTT, HTTP, and FTP.

This project is a specialized fork of the RNode Firmware Community Edition (CE) that introduces NeoPixel status indicators for ESP32-based hardware, specifically the LilyGO LoRa32 v2.1. It serves as a software-defined LoRa modem for the Reticulum network stack, providing visual feedback for boot sequences and data transmission using the ESP32's underlying FreeRTOS-based Arduino core and SPIFFS for asset management.

A high-performance network microphone firmware for Seeed Studio XIAO ESP32 boards that streams 16-bit PCM audio via RTSP. It is designed for integration with BirdNET-Go and BirdNET-Pi for automated bird sound identification and includes a Web UI, MQTT telemetry, and OTA support.

Claude Pocket is a voice-activated AI assistant firmware for the M5Stack Cardputer ADV, powered by Anthropic's Claude and OpenAI's Whisper and TTS APIs. It features a custom C++ implementation that handles voice activity detection, streaming transcription, and real-time audio playback on hardware without external PSRAM.

A transparent UART-to-BLE cable replacement for the ESP32-C6 that implements the Nordic UART Service (NUS). It is specifically optimized for high throughput using BLE 5 features like LE 2M PHY, Data Length Extension (DLE), and credit-based flow control.

OttoClaw is an AI-powered desktop humanoid robot system built on the ESP32-S3 and FreeRTOS. It features a local lightweight agent that handles conversation, memory, and autonomous physical movements through six servos without relying on cloud servers, utilizing LVGL for its graphical interface and SPIFFS for local data persistence.