FreeRTOS Projects

An open-source family of ESP32-based remote-controlled rovers featuring 3D-printable mechanical designs and a rocker-bogie suspension system. The project supports multiple control methods including WiFi via a custom HTTP API and ExpressLRS (ELRS) for long-range operation. It includes two variants: the standard Pathfinder for high-torque applications and the Pathfinder Mini for compact, camera-enabled exploration.

A Matrix-inspired desktop clock featuring animated digital rain on a 2.8-inch TFT touchscreen. Built with an Arduino Nano ESP32, the project combines real-time clock functionality with dynamic visuals, touch-based time adjustment, and customizable color schemes.

A rendering service and ESP32 client system that converts Home Assistant data into optimized 1-bit monochrome images for E-Ink displays. It features a Node.js backend for HTML-to-BMP conversion and an ESP32 firmware that supports chunked image downloading to accommodate memory-constrained hardware.

A high-resolution, wireless laser Digital-to-Analog Converter (DAC) powered by the ESP32-S3. It features 16-bit 8-channel output, SD card playback, and support for ILDA Digital Network (IDN) and custom UDP streaming protocols.

A diagnostic and silencing tool for Bluetooth speakers built on the ESP32 microcontroller. It provides features for monitoring RF congestion in Bluetooth frequencies and identifying devices in pairing mode, with support for OTA updates.

A modular framework for running TensorFlow Lite Micro models on ESP32 devices within the ESPHome ecosystem. It provides specialized components for digital and analog meter reading, image processing, and active learning data collection, optimized with ESP-NN for high-performance edge AI.

An ESP32-S3 powered smart clock project featuring a round touch display, Text-to-Speech capabilities, and integrated battery monitoring. Built using the ESP-IDF framework and LVGL graphics library, it serves as a comprehensive hardware abstraction layer and demo for the WaveShare 1.85-inch Touch LCD development board.

A multi-protocol Zigbee gateway and energy management hub built on the ESP32-S3 platform. It integrates Zigbee devices, Linky smart meters, and energy sensors into home automation systems via MQTT and a local web interface.

A comprehensive multi-application launcher and management system for the M5 CardPuter. Built on ESP-IDF and FreeRTOS, it enables users to install and run multiple applications from cloud repositories, SD cards, and USB storage.

An ESP32-based animatronics client that renders expressive eye animations on an SSD1306 OLED and plays robot sounds via a buzzer. It functions as a networked peripheral that receives AI-generated animation and audio data from a remote server over WiFi.

A single-pilot FPV laptimer based on the ESP32 microcontroller and the RX5808 video receiver. It features a web-based interface for race management, real-time RSSI calibration, and integrated battery monitoring using the Arduino framework.

A firmware implementation for ESP32 that enables remote ARM microcontroller debugging and flashing via the CMSIS-DAP protocol over TCP/IP. It supports both JTAG and SWD interfaces, allowing OpenOCD to connect to target hardware over WiFi. The project includes a UART-to-TCP bridge for remote serial console access.

An ESPHome component designed to interface with Cosori smart kettles using Bluetooth Low Energy on ESP32 microcontrollers. It provides comprehensive control over heating states and temperature setpoints while exposing sensors for real-time water temperature and base status to Home Assistant.

A lightweight, open-source firmware for the Xteink X4 e-paper reader powered by the ESP32-C3. It supports EPUB, Markdown, and plain text formats with advanced typography features like the Knuth-Plass line-breaking algorithm and CJK/Thai text rendering.

An open-source precision cooking platform built on the ESP32-S3 microcontroller. It utilizes PID control loops and dual NTC temperature sensors to manage a 1500W heating element, providing professional-grade temperature accuracy for home kitchen automation. The system features a tactile interface with a color LCD and physical controls, designed for reliability and user modification.

A real-time environment for deploying X-CUBE-AI models on STM32N6 microcontrollers, supporting Audio Event Detection and Speech Enhancement. It provides a complete pipeline from sensor acquisition to NPU-accelerated inference with support for both FreeRTOS and bare-metal configurations.

LeCyborg is an AI-powered third-arm prosthesis that uses EMG sensors and imitation learning to assist users. Built on the LeRobot framework, it features an ESP32-based wearable sensor system and a SO100 robotic arm controlled by an Action Chunking with Transformers (ACT) policy.

Mote is an open-source ESP32-S3 voice companion device designed to bring personal AI into the physical world. It features real-time speech-to-text via Deepgram, natural voice synthesis through ElevenLabs, and an animated face display. The project includes a complete firmware stack, a gateway server, and a mobile application for configuration.

A non-blocking ZModem file transfer implementation for Meshtastic LoRa mesh networks. It enables reliable node-to-node binary file transfers on ESP32-based devices using a custom protocol engine designed for high-latency mesh environments.

A high-performance ESP32 firmware for DCS World cockpit panels using the DCS-BIOS protocol. It supports native USB HID, WiFi, and Serial transports while providing drivers for various displays, LEDs, and input devices with a focus on static memory allocation and non-blocking I/O.

An Arduino library for ESP32 microcontrollers that provides a unified interface to interact with major AI providers like OpenAI, Google Gemini, Anthropic Claude, and DeepSeek. It supports advanced features such as tool calling, real-time streaming responses, and connection resilience through auto-retry logic.

A production-ready Tailscale protocol implementation for ESP32 microcontrollers using the ESP-IDF framework. It enables secure VPN connectivity via WireGuard encryption, supporting NAT traversal through DERP and STUN.

A portable SSH terminal client for the ESP32-S3 T-Deck Plus handheld device. It provides a full SSH2 terminal with PTY support, hardware keyboard integration, and a graphical interface built on FreeRTOS and LVGL. The project targets secure remote server management on compact, battery-powered hardware.

A Zigbee-based firmware for the ESP32-C6 microcontroller designed to replace the driver in Philips Hue White Ambiance ceiling lights. Built using the ESP-IDF framework, it provides a custom implementation for smart lighting control and integration.

A digital synthesizer project built using the ESP32 microcontroller and an external I2S PCM5102A DAC. It utilizes the Maximilian audio engine and arduino-audio-tools for real-time sound synthesis and signal processing. The repository provides source code and hardware configuration details for building a functional audio device.

A hardware-based authentication system for ESP32 microcontrollers using SRAM Physical Unclonable Functions (PUF). It leverages unique manufacturing variations in RTC SLOW memory to generate authentication tokens without storing credentials on-device. The project includes ESP32 firmware, a measurement server, and analysis tools for identifying stable bits.

An ESP32-S3 based information display utilizing a 7.5-inch 4-color e-ink screen. It integrates with Home Assistant via ESPHome to provide a visual dashboard for weather forecasts and calendar events with automated hourly updates.

An integrated development kit for deploying Large Language Model (LLM) capabilities like voice agents and text chat on client-side and embedded platforms. It supports device management via MQTT and runs on systems including ESP32, FreeRTOS, Linux, and Windows.

An ESP32-S3 firmware for monitoring Victron SmartSolar chargers and battery monitors via Bluetooth. It decrypts BLE advertisements using AES-128 and displays real-time metrics on a 3.5-inch LCD using the LVGL library.

A high-performance MJPEG video player optimized for the ESP32-2432S028 'Cheap Yellow Display' (CYD) module. It utilizes the Arduino_GFX library and JPEGDEC for efficient frame-by-frame playback from an SD card, supporting hardware-accelerated rendering on the ILI9341 display controller.

A flexible e-paper display driver for the ESP-IDF framework featuring LVGL 9 integration. It supports a wide range of panels including black/white, 4-color BWRY, and 6-color displays with advanced features like Floyd-Steinberg dithering and partial refresh. Designed for low-power IoT devices, electronic shelf labels, and photo frames on ESP32 series microcontrollers.

A real-time audio frequency visualizer built on the ESP32 microcontroller using the Arduino framework and Kiss FFT library. It processes audio signals through ADC or I2S inputs to display 64 frequency bands on an SSD1322 OLED screen.

A hardware-accelerated graphics layer for the ESP32-P4 that integrates the Pixel-Processing Accelerator (PPA) with LovyanGFX and M5GFX. It provides high-performance image rotation, scaling, mirroring, and blending for MIPI/DSI display panels.

A game selection menu and emulator frontend for running single-screen Game & Watch ROMs on the M5Stack Tab5. It features support for touch controls, USB gamepads, and automatic screen orientation via the built-in IMU.

An ESP32-S3 based portable intelligent electronic load featuring high-precision control and a rich graphical interface. It utilizes FreeRTOS for multi-tasking and integrates PID and Model Predictive Control (MPC) algorithms with Kalman filtering for accurate current regulation. The system supports Constant Current (CC), Constant Power (CP), and Constant Resistance (CR) modes with real-time monitoring via LVGL.

A portable real-time aircraft tracker for the M5StickC Plus 2 that utilizes the adsb.lol API to display flight telemetry and route information. It features a multi-page OLED interface, emergency squawk highlighting, and a web-based setup portal for easy configuration.