lwIP Projects

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 open-source firmware replacement for the TJ-56-654 weather clock kit, focusing on security, privacy, and performance. It features a fully asynchronous architecture for the ESP8266, utilizing NTP for time synchronization and the Open-Meteo API for weather data. The project provides a secure web interface, REST API, and Over-the-Air (OTA) update capabilities to replace insecure factory firmware.

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.

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.

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.

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.

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.

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.

A minimal bare-metal SDK for Espressif RISC-V microcontrollers, specifically the ESP32-C6 and ESP32-P4, designed to operate independently of the ESP-IDF framework. It provides low-level hardware access through direct register-level programming, custom startup code, and linker scripts while integrating the lwIP and NimBLE stacks for networking and Bluetooth functionality.

A robust ESP-IDF project for the AI-Thinker ESP32-CAM module featuring real-time MJPEG streaming and automated microSD storage. It provides a web interface and REST API for remote monitoring and control using the FreeRTOS-based ESP-IDF framework.

An ultra-low latency screen mirroring tool for the M5Stack Cardputer that utilizes USB HID injection to deploy a Python-based UDP streaming engine. It features adaptive bitrate management, flicker-free display rendering, and robust WiFi handling on the ESP32 platform.

An energy-efficient network discovery tool for the ESP32 that utilizes ARP (Address Resolution Protocol) to identify devices on a LAN. Built using ESP-IDF and lwIP, it provides a real-time web interface to monitor device connectivity, bypassing the limitations of traditional ICMP ping scans.

TankSync is a solar-powered, local-first smart water monitoring system built on ESP32 and ESP32-C3 hardware using the ESP-IDF framework. It utilizes long-range LoRa communication to bridge rooftop sensors with an indoor hub, offering Home Assistant integration and offline reliability via FreeRTOS-based firmware.

An ESP8266-based signal generator that synchronizes radio-controlled clocks by mimicking the German DCF77 longwave time station. It fetches precise time via NTP over Wi-Fi and uses PWM harmonics to broadcast a localized 77.5 kHz signal.

A comprehensive IoT development framework for Realtek Ameba series SoCs, providing a robust environment for building connected applications. It primarily leverages the FreeRTOS kernel and integrates essential networking stacks like lwIP, Wi-Fi, and Bluetooth. The SDK supports a wide range of Realtek chips, including the RTL8730E and RTL8721Dx, with tools for both CLI and VS Code-based development.

This project provides pre-compiled Tasmota firmware binaries specifically optimized for smart meter reading via SML and advanced scripting on ESP32 and ESP8266 platforms. It features a dual-track approach offering both the classic Tasmota Scripter and the high-performance TinyC VM, utilizing FreeRTOS for background processing and LittleFS for filesystem management. The firmware supports energy monitoring, Google Charts visualization, and emulation of smart battery interfaces like Shelly Pro 3EM.

An ESP8266-based IoT solution for remote management of the Logitech Z906 5.1 surround sound system. It provides a web interface and MQTT integration for volume control, input switching, and status monitoring via the system's DE-15 console port.

Pixel Pets is an open-source virtual pet ecosystem built for the M5Stack hardware family, featuring interactive digital companions with adaptive behaviors. It utilizes FreeRTOS for task management and the M5Unified library for hardware abstraction, supporting advanced features like ESP-NOW inter-device communication, offline LLM-based voice control, and real-time environment syncing. The project targets various ESP32 platforms including the CoreS3, Core2, and M5StickC PLUS2.

ESP32 Bit Pirate is an open-source firmware that transforms ESP32-S3 development boards into multi-protocol hardware hacking tools. It provides extensive support for digital protocols like I2C, SPI, and UART, as well as radio communications including Wi-Fi, Bluetooth, and Sub-GHz, utilizing FreeRTOS and LittleFS for robust device interaction.

BETTA HA Panel is a runtime-configurable Home Assistant dashboard firmware for ESP32-P4 and ESP32-S3 touchscreen devices. Built on the ESP-IDF framework using LVGL and LittleFS, it allows users to design complex, multi-page layouts via a web-based drag-and-drop editor without requiring YAML configuration or firmware rebuilds.

An advanced Bluetooth audio receiver firmware for ESP32 that supports high-resolution codecs including LDAC, aptX HD, and AAC. Built on ESP-IDF v5.5.2, it features real-time DSP audio enhancement, integrated LED matrix visualization, and BLE-based remote control.

A custom bootloader for the ESP32 that enables switching between multiple firmware versions using hardware switches. It integrates Over-The-Air (OTA) update capabilities and the ESP-Serial-Flasher library to facilitate remote firmware management and master-slave device flashing.

An ESP32-based bridge that interfaces CAN bus systems with IoT environments using the Lawicel (SLCAN) protocol. It supports real-time CAN data monitoring and transmission via a web interface, Serial, or WebSockets, and is designed for automotive and industrial applications.

This project provides a unique method for configuring Wi-Fi credentials on the Raspberry Pi Pico W by emulating a USB Mass Storage device. It uses a virtual FAT12 filesystem to map a text file directly to the microcontroller's flash memory, allowing users to set network settings without specialized software.

An ESP-IDF based firmware for creating local mesh networks using ESP32-DevKitV1 hardware. It features a self-hosted web server for configuration, real-time topology visualization via WebSockets, and a custom OTA update mechanism that broadcasts firmware to all nodes in the mesh.

An alternative firmware for Riden WiFi modules that provides Modbus TCP and SCPI support for RD-series power supplies. Built using the Arduino framework for ESP8266, it enables integration with professional lab automation tools and provides a comprehensive web interface for remote monitoring and control.

Cydintosh is a Macintosh Plus emulator designed for the ESP32-based Cheap-Yellow-Display (CYD). It utilizes the Musashi 68k emulator core and umac to run classic Macintosh software alongside modern ESP32 features like WiFi, MQTT, and Home Assistant integration.

A standalone ESP32-S3 firmware project for a custom round external controller for La Marzocco espresso machines. It utilizes the ESP-IDF framework, FreeRTOS, and the LVGL graphics library to provide an on-device UI, BLE/cloud connectivity, and a local setup portal for managing machine settings and recipes.

BluButton is an open-source firmware for ESP32 and ESP32-C3 devices, implementing a BLE button transmitter compatible with the Shelly BLU Button ecosystem. Built on ESP-IDF v6.0 and FreeRTOS, it focuses on high energy efficiency through deep-sleep cycles and provides encrypted advertising for secure button event triggers.

A native ESP32 implementation of the ASCOM Alpaca HTTP interface for controlling astronomical equipment. Built using the ESP-IDF framework, it supports a wide range of device types and includes UDP discovery for seamless network integration.

A premium Bluetooth audio receiver firmware for ESP32-WROVER modules that enables high-resolution streaming via LDAC and aptX codecs. It features a custom DSP pipeline for 3D audio enhancement, real-time LED matrix visualization, and a secure OTA recovery system built on FreeRTOS.

GhostESP is a multi-protocol security testing toolkit for ESP32 microcontrollers, built on the ESP-IDF framework and FreeRTOS. It provides extensive capabilities for Wi-Fi, BLE, Sub-GHz, NFC, and Infrared auditing across a wide range of hardware, including M5Stack devices and custom development boards.

A keyboard-focused pentesting firmware for the M5Stack Cardputer-Adv (ESP32-S3) offering over 90 features across WiFi, BLE, sub-GHz, and LoRa. It utilizes FreeRTOS and the NimBLE stack to coordinate complex wireless attacks, including 5 GHz deauthentication and Zigbee sniffing via a companion ESP32-C5 node.

A high-performance serial communication hub for ESP32 and ESP32-S3 microcontrollers that bridges UART data to USB, WiFi, and Bluetooth. It features protocol-aware optimizations for MAVLink, SBUS, and CRSF, and includes a comprehensive web-based configuration interface.