FreeRTOS Projects

A real-time audio analysis application for the M5Cardputer that provides a spectrum analyzer, oscilloscope, and musical tuner. It utilizes the ESP32-S3's I2S interface for high-speed microphone sampling and implements fixed-point FFT and wavelet-based pitch tracking for efficient signal processing.

A utility and library for the M5Cardputer platform designed to configure WiFi connections using the integrated physical keyboard. It manages credential persistence via EEPROM and provides a user interface for manual SSID and password entry when a connection cannot be established automatically.

A comprehensive camera API for MicroPython targeting ESP32-based boards. It provides a stable interface for various image sensors like the OV2640 and OV5640, supporting both synchronous and asynchronous capture modes with ESP-IDF integration.

An autonomous virtual pet application for the ESP32-S3 that 'feeds' on nearby WiFi networks. It features a full-color UI on an ST7789 display, persistent state management via Preferences, and a custom behavior engine that evolves the pet based on environmental factors.

An IoT edge device based on the ESP32 microcontroller, featuring Ethernet connectivity via the W5500 chip and environmental sensing with the DHT22. It serves as a gateway for collecting and processing sensor data at the edge before passing it to a network.

A portable wardriving device designed for real-time Wi-Fi network scanning and data logging. It integrates GPS for location tracking, an OLED display for a user interface, and a micro SD card for storing captured network data in a format compatible with Wigle.net.

A specialized embedded scheduling core designed to maintain stable outgoing data pipelines on microcontrollers like the ESP32. It manages transmission through budget-based degradation and backpressure handling, ensuring critical telemetry is preserved during bandwidth saturation.

An ESP32-based IoT clock designed for children's sleep routines, built using the ESPHome framework. It utilizes a WS2812B LED matrix to provide color-coded status indicators and visual countdowns, featuring automatic time synchronization and Home Assistant integration.

An ESP32-based cybersecurity tool designed for scanning, capturing, and replaying RF signals in the Sub-GHz range. It supports multiple frequency bands including 315, 433, 868, and 915 MHz, providing a portable platform for signal analysis and security testing.

An ESP32-based IoT medical assistant that manages medication schedules through alarms, monitors storage conditions with temperature and humidity sensors, and features an automated light-shielding curtain. It integrates with a Node-Red dashboard via MQTT and includes a web-based WiFi configuration portal.

A pixel art sketchbook application designed for the M5Stack Cardputer, featuring 8x8 and 16x16 canvas modes with support for custom palettes and PNG export. Built on the Arduino framework for the ESP32-S3, it provides a retro handheld gaming experience for creating and managing digital art on portable hardware.

A full-stack open-source solution for smart aquarium LED control featuring ESP32-based hardware, ESP-IDF firmware, and a Flutter mobile application. It provides high-resolution PWM dimming, sunrise/sunset simulation, and efficient CoAP/CBOR communication for professional-grade lighting management.

A demonstration project for the JC3248W535 display module using the ESP32-S3 microcontroller. It integrates LVGL V9.2.2 with the Arduino_GFX library and includes a custom driver for the AXS15231B touch controller.

A comprehensive collection of LVGL (Light and Versatile Graphics Library) examples and tutorials for ESP32 and ESP8266 platforms. It supports multiple development frameworks including Arduino, ESP-IDF, and MicroPython, providing drivers and UI templates for various display types.

A custom firmware for the LilyGo T-Deck handheld device, featuring a graphical IRC client built with LVGL. It supports WiFi connectivity, audio playback, and various command-and-control features on the ESP32-S3 platform.

A minimalist C99 asynchronous toolkit providing Active Objects, Finite State Machines (FSM), and Hierarchical State Machines (HSM). It features a unique async/await implementation for C and is designed for resource-constrained embedded systems with support for FreeRTOS, POSIX, and bare-metal environments.

A custom ESPHome component and configuration for driving Nixie tube clocks using the HV5222 high-voltage shift register. It targets the ESP32-S3 platform using the ESP-IDF framework and features integrated tube cleaning cycles, SNTP time synchronization, and WS2812 backlighting.

A Modbus TCP implementation for STM32F407 microcontrollers utilizing FreeRTOS and the lwIP stack. It provides a standardized TCP interface for industrial communication, supporting common read/write commands and robust error handling for automation equipment.

An ESP32-based NFC/RFID card tool for inspecting and modifying Mifare Classic memory blocks. It utilizes an MFRC522 reader and communicates via MQTT to a Vue-based web dashboard for real-time memory manipulation and access condition configuration.

An ESP32-based firmware that extracts vehicle data via an ELM327 OBD2 adapter and transmits it to an MQTT broker over cellular networks. Designed for Home Assistant integration, it supports a wide range of LilyGO T-Call and Waveshare modules with integrated GSM/LTE and GPS capabilities.

A comprehensive guide and driver implementation for connecting the LAN8720 Ethernet PHY to an ESP32 using the ESP-IDF framework. It focuses on using the internal ESP32 PLL to generate the 50MHz reference clock, effectively avoiding common hardware conflicts with GPIO0 during the boot process.

An ESP32-based RF interference tool utilizing multiple nRF24L01 modules to disrupt signals including Bluetooth, Wi-Fi, and Zigbee. It features a web-based control interface, serial terminal support, and optional OLED display integration for standalone operation.

Firmware for the Robomates self-balancing robot platform based on the ESP32 microcontroller. It utilizes field-oriented control (FOC) for brushless motors, sub-GHz radio for robot-to-robot communication, and Bluetooth for gamepad integration in multiplayer gaming environments.

A specialized security auditing and wireless monitoring firmware for ESP32 devices. Built on the ESP-IDF framework and FreeRTOS, it provides tools for BLE wardriving, WiFi deauthentication testing, and device detection for hardware like AirTags and Flipper Zero.

A modular and highly configurable firmware for the Watchy and Yatchy e-paper smartwatches. Built using ESP-IDF and Arduino, it provides a feature-rich environment including weather charts, calendar synchronization, encrypted data storage, and FreeRTOS-based task management.

An open-source hardware tool for real-time auditory and visual confirmation of Solana blockchain transactions. Built on the ESP32-S3 platform using the Arduino framework, it monitors wallet addresses via WebSockets to provide immediate feedback upon payment finalization.

A compact, open-source AI-enabled device powered by the ESP32-S3 for real-time voice interaction. It features voice-enabled emotional intelligence, custom AI characters, and a self-hostable backend architecture using FastAPI and Docker.

A network-connected desk companion firmware for the ESP32-S3 based WT32-SC01 PLUS touch display. It integrates a real-time clock, OpenWeatherMap weather data, and an online radio player using LVGL for the graphical interface and FreeRTOS for task management.

A real-time object and animal detection system that combines ESP32-CAM hardware with the YOLOv3 computer vision model. It includes Arduino firmware for wireless image streaming and a Python-based desktop application for processing detections using OpenCV.

A firmware project for the ESP32-S3-EYE development board that streams audio from an attached I2S microphone directly to a web browser. It utilizes the Arduino framework on the ESP32-S3 platform to create a simple web server for real-time audio monitoring.

An Arduino core implementation for Silicon Labs microcontrollers, enabling support for Matter, BLE, and low-power wireless applications. It provides a comprehensive set of libraries and drivers for EFR32 and MGM24 series hardware, integrating Silicon Labs' Gecko SDK and FreeRTOS for advanced protocol stacks.

A proof-of-concept project demonstrating the use of Embedded Swift to develop applications for the Flipper Zero. It targets the STM32WB55 microcontroller and integrates with the Flipper Zero firmware's C-based Furi OS and GUI libraries.

An autonomous IoT information display for 42 school clusters using an ESP32-C3 and a 7.5-inch e-paper screen. It synchronizes with the 42 Intra API to display exam schedules, supports remote management via Telegram, and features OTA updates.

An ESP32-based hardware performance monitor that visualizes computer system metrics through physical analog gauges and RGB lighting. The project leverages the Arduino framework and WebSockets to receive real-time data from a desktop companion app, providing a tactile and vintage-inspired dashboard for modern PC monitoring. It includes complete hardware design files, including PCB schematics and CAD drawings for the enclosure.

An open-source RF experimentation firmware for ESP32 and ESP32-S3 microcontrollers. It enables WiFi deauthentication, beacon spamming, and BLE advertising, specifically targeting portable hardware like the M5Cardputer and HeltecV3.

An ESP32-S3 based smartwatch project that integrates a comprehensive suite of sensors including the BME680, ICM42670, DS3231, and VL53L1X. It features custom PCB design, power management for Li-Ion batteries, and multiple graphical themes.