FreeRTOS Projects

An ESP32-powered wearable device that translates sign language gestures into spoken or text-based output. It utilizes a K-Nearest Neighbors (KNN) algorithm for real-time gesture classification and features a web-based 3D visualization tool built with Three.js.

A compact, open-source multi-purpose sensing device inspired by the Star Trek tricorder. Built on the Seeed Studio XIAO ESP32C3, it integrates a spectrometer, CO2 sensor, and environmental sensors with a low-power Sharp Memory Display for portable data visualization.

An Arduino-based project for the ESP32-S3 that displays real-time vehicle telemetry like turbo boost, gear position, and temperatures on the Alfa Romeo Giulia's instrument cluster. It utilizes dual CAN bus controllers to bridge high-speed engine data and low-speed dashboard display signals, leveraging FreeRTOS for multi-core processing.

A comprehensive firmware for ESP32-based portable gaming consoles featuring a 128x64 OLED display. It includes classic games, a web-based configuration interface, and system utilities like a LittleFS file manager and a calculator.

An ESP32-based firmware for controlling Charlton & Jenrick fireplaces using a CC1101 433 MHz transceiver. It supports multiple RF modulation profiles (2-FSK and ASK/OOK) and integrates with Home Assistant via MQTT while offering a standalone web interface.

A sophisticated dynamic code loading system for the ESP32-P4 microcontroller that enables native RISC-V execution without firmware reflashing. It provides a Python-based host toolchain for cross-compilation and a high-speed USB transport protocol for rapid algorithm deployment and testing. Built on ESP-IDF and FreeRTOS, it supports automatic memory management, cache coherency, and seamless NumPy integration.

A demonstration project showcasing Embedded Swift on the ESP32-C6 microcontroller. It features a rotating 3D cube animation on an OLED display using the U8g2 library and I2C communication within the ESP-IDF framework.

A lightweight C99 library for creating Model Context Protocol (MCP) servers on resource-constrained embedded systems. It enables developers to transform existing C functions into AI-accessible tools with minimal code changes, supporting multiple transports and various RTOS environments like FreeRTOS and Zephyr.

A comprehensive DIY project for building ESP32-based environmental sensors and cameras integrated with Home Assistant via the ESPHome framework. It covers hardware selection, 3D casing design, wiring, and non-linear calibration to ensure accurate readings despite internal heat generation.

An internet-connected weather station application for the ESP32 Cheap Yellow Display (CYD). It features a 3-day forecast using the OpenWeather API, displaying weather icons and data on a 2.8-inch TFT screen. The project utilizes LittleFS for asset storage and the TFT_eSPI library for high-performance graphics.

An advanced animated character display system based on the ESP32-P4 platform using the DSI interface to drive a 10.1-inch LCD. It features a 12x5 grid for characters and emoji with a unique 'card falling' animation effect. The system utilizes LVGL for UI rendering and NimBLE for BLE communication via an external ESP32-C6 co-processor.

A multi-interface network gateway firmware for the ESP32 series that implements the Reticulum Network Stack (Reticulum). It enables transparent packet routing and bridging across WiFi, ESP-NOW, LoRa, Serial, and HAM radio interfaces, providing a resilient and cryptographically secured communication mesh.

An embedded project that repurposes the ESP32's internal Audio PLL and I2S Master Clock to create a functional FM radio transmitter. By dynamically adjusting the APLL frequency via a high-resolution timer, it achieves real-time frequency modulation of an 8kHz audio signal. The project demonstrates advanced peripheral manipulation for RF generation without external transmitter chips.

A collection of example projects demonstrating interactive map displays on ESP32 microcontrollers using the 0015__map_tiles component and LVGL. These projects showcase features like GPS navigation, LoRa communication, and SD card-based tile loading across various development boards.

StickiNote is a digital sticky note application optimized for the ESP32-P4 high-performance microcontroller. It utilizes the MIPI DSI interface for 10-inch displays and the LVGL v9 library to provide a smooth, e-paper-styled user interface with persistent storage.

An ESP32-based filament movement sensor for the Elegoo Carbon Centauri 3D printer. It integrates a Big Tree Tech SFS 2.0 sensor to detect jams or runouts and communicates via WebSockets to pause the printer. The project features a web-based UI for configuration and real-time status monitoring.

A high-performance Nintendo Entertainment System (NES) emulator ported to the ESP32, capable of running games at native speeds with full audio. It leverages FreeRTOS for concurrent CPU and APU emulation and supports various memory mappers covering approximately 79% of the NES library.

A DIY portable walkie-talkie based on the ESP32-S3 that leverages embedded neural networks for hands-free communication. It features automatic voice detection and keyword recognition using the ESP-SR framework, alongside a visual interface for animations and text-based conversation display.

A multi-system game emulator firmware for the M5Stack Cardputer based on the ESP32-S3. It supports ten classic consoles including NES, Game Boy, and Mega Drive, featuring optimized memory management to run within 256 KB of RAM and integrated support for the Cardputer's keyboard and SD card storage.

A comprehensive configuration guide and project template for developing STM32 applications using JetBrains CLion. It leverages the STM32CubeCLT toolchain and STM32CubeMX for code generation, providing a modern cross-platform alternative to traditional IDEs like Keil with full support for FreeRTOS debugging.

Rust-based firmware for the EchoKit ESP32-S3 voice interaction device. It utilizes the ESP-IDF framework to provide voice processing, display management, and network connectivity for AI-driven hardware applications.

An end-to-end platform for deploying state-of-the-art AI voice agents on ESP32-S3 hardware. It utilizes a Deno-based edge server to bridge microcontrollers with APIs from OpenAI, Gemini, and Eleven Labs, featuring Opus audio compression and Secure WebSockets for low-latency speech-to-speech interaction.

A versatile Sub-GHz radio frequency tool for the ESP32 platform using the CC1101 transceiver. It enables reading, replaying, and storing signals across 315, 433, 868, and 915 MHz frequencies, supporting protocols like Princeton, KeeLoq, and StarLine.

An experimental signal jamming device built with an ESP32 microcontroller and dual NRF24L01 radio transmitters. It targets the 2.4GHz ISM band to interfere with Bluetooth and WiFi signals for educational research. The project is implemented using the Arduino framework and the RF24 library.

An open-source firmware for ESP32-S3 microcontrollers that replicates and extends the functionality of the Bus Pirate hardware tool. It provides an interactive CLI for sniffing, sending, and scripting various digital and radio protocols like I2C, SPI, UART, CAN, and Sub-GHz.

A comprehensive RTSP server library for the ESP32 platform that enables streaming of video, audio, and subtitles. It supports multiple transport protocols including UDP, TCP, Multicast, and HTTP tunneling, with specific optimizations for ESP32 camera sensors and I2S audio interfaces.

An ESP32-based wireless e-ink display designed to track and showcase GitHub contribution streaks. Utilizing the Lilygo T5 development board, the project features ultra-low power consumption for months of battery life and a captive portal for easy WiFi configuration.

A comprehensive security-focused firmware for ESP32, ESP8266, and RTL8720DN platforms designed for wireless auditing and hardware hacking. It provides a robust toolkit for Sub-GHz, Wi-Fi, BLE, RFID/NFC, and Infrared signal manipulation across various devices like M5StickC and Cardputer.

An ESP-IDF based SDK for integrating ESP32-S3 and ESP32-P4 devices with the LiveKit real-time communication platform. It provides bidirectional audio with Opus encoding, H.264 video publishing, and support for AI agents and remote method calls.

An ESP32-based signal intelligence platform for RF analysis, signal generation, and manipulation. It utilizes multiple NRF24 and CC1101 radio modules to provide versatile frequency coverage and is compatible with HackRF One for extended range up to 6 GHz.

An ESP32-based mechanical clock that uses servos to actuate a physical 7-segment display. It features NTP time synchronization, a web-based management portal, voice command support via an ASRPRO module, and I2S audio integration.

A comprehensive solution for connecting Seeed Studio XIAO development boards to Home Assistant using WiFi or Bluetooth Low Energy. It supports real-time bidirectional communication via WebSockets on ESP32 devices and ultra-low power sensor reporting via the BTHome v2 protocol on both ESP32 and nRF52840 platforms.

A major update to the STM32Cube ecosystem, providing the next-generation HAL2 drivers for the STM32U5 series. It features enhanced API usability, performance optimizations, and improved integration with RTOS environments like FreeRTOS and middleware such as FileX.

Wally is a bilingual voice-powered AI companion built on the ESP32 platform using the ESP-IDF framework. It features offline voice wake-up, real-time LLM-driven conversations via the XiaoZhi platform, and visual feedback through an LVGL-powered OLED display.

An open-source, 3D-printed robotic platform modeled after NASA's Perseverance rover. It features a distributed control system using Arduino Mega for low-level hardware management, an ESP32-S3-powered touchscreen remote utilizing the LVGL library, and a Raspberry Pi Zero 2W for web-based telemetry and video streaming.

This project transforms standard USB keyboards into wireless Bluetooth Low Energy (BLE) devices using the ESP32-S3's native USB-OTG hardware. It features multi-device switching for up to three paired hosts and utilizes the NimBLE stack for low-latency HID report forwarding.