lwIP Projects

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.

SVITRIX is an open-source, AI-developed firmware for the Ulanzi Smart Pixel Clock TC001 and custom ESP32-based LED matrices. It features a robust MQTT and HTTP API for integration with home automation systems like HomeAssistant, supporting dynamic custom apps, visual effects, and real-time environmental sensor data.

A high-performance, multi-backend secp256k1 elliptic curve cryptography engine optimized for CPU, GPU, and embedded systems. It supports a comprehensive cryptographic stack including ECDSA, Schnorr, and ZK proofs, targeting platforms like ESP32, STM32, and RISC-V.

Zhilly is an AI-powered portable cybersecurity tool for ESP32-S3 devices, enabling voice-controlled pentesting, RF/IR signal manipulation, and HID emulation. Built on the ESP-IDF framework, it utilizes FreeRTOS, LVGL, and NimBLE to provide a sophisticated, hands-free interaction model for security researchers.

RuView is an open-source WiFi sensing platform that leverages Channel State Information (CSI) from ESP32-S3 sensors to perform human pose estimation, vital sign monitoring, and environment mapping. It utilizes a high-performance Rust-based processing pipeline and FreeRTOS-powered firmware to enable camera-free, privacy-preserving spatial intelligence at the edge.

An enhanced USB/IP protocol implementation for the ESP32S3 that enables sharing physical USB devices over a network. Built on the ESP-IDF framework and lwIP stack, it optimizes transmission stability for peripherals like ST-Link debuggers, keyboards, and serial tools.

This project demonstrates how to configure Wi-Fi credentials on a Raspberry Pi Pico W or Pico 2 W using Bluetooth Low Energy (BLE). It implements a custom GATT-based protocol using the BTstack and lwIP libraries to securely receive SSIDs and passwords from a mobile device.

SecureGen is an open-source hardware security device based on the ESP32 T-Display that serves as a TOTP/HOTP authenticator and a BLE-enabled password manager. It utilizes FreeRTOS for system management and hardware-accelerated AES-256 encryption to provide a secure, offline alternative to software-based authentication tools. The system features a built-in web management interface for configuration and credential management without requiring cloud connectivity.

UniGeek is a comprehensive multi-tool firmware for ESP32-based handheld devices, offering a suite of tools for WiFi security, Bluetooth analysis, and hardware module interfacing. Built on the Arduino framework and FreeRTOS, it supports a wide variety of hardware including M5Stack, LilyGO, and custom DIY builds.

A standalone digital photo frame firmware built with ESPHome for the ESP32-P4, designed to stream photos directly from an Immich server. It features smart portrait pairing, automatic tone adjustment, and local network privacy without requiring external hubs or cloud services.

ESP-PPB is an open-source, wireless, battery-powered platform for distributed, phase-coherent Wi-Fi Channel State Information (CSI) capture. Built on the ESP32-C3 and the ESP-IDF framework using FreeRTOS and LwIP, it achieves sub-PPB clock alignment by disciplining a VCTCXO using Wi-Fi Fine Timing Measurement (FTM). This enables advanced wireless sensing applications like angle-of-arrival estimation and indoor localization without the need for wired synchronization.

ClawPuter is an interactive pixel-art desktop companion for the M5Stack Cardputer (ESP32-S3) featuring a lobster character with rich animations and real-time weather integration. It leverages the OpenClaw AI gateway for streaming chat, voice-to-text via Groq Whisper, and bidirectional synchronization with a macOS desktop app.

XiaoClaw is an integrated firmware for the ESP32-S3 that combines voice interaction with a local AI agent. It utilizes the ESP-IDF framework and FreeRTOS to provide a complete system for voice I/O, LLM-powered reasoning, tool calling, and autonomous task execution.

An edge-only acoustic drone detection system built for the ESP32-S3 that uses FFT-based harmonic analysis to identify rotor signatures. It features encrypted LoRa communication between detectors and gateways, with seamless integration into Home Assistant via MQTT.

Hyperk is a minimalist, high-performance WiFi LED driver for ESP8266, ESP32, and Raspberry Pi Pico W microcontrollers. It provides low-latency control for addressable LEDs like WS2812B and SK6812, featuring native integration with HyperHDR and Home Assistant. The firmware utilizes FreeRTOS and the lwIP stack to manage high-speed UDP streaming and a responsive web-based configuration interface.

OpenToys is an open-source framework for building local voice AI companions and robots using ESP32-S3 hardware and Apple Silicon for edge processing. It leverages Whisper ASR, Qwen3-TTS, and MLX-optimized LLMs to provide a fully offline, multilingual conversational experience without cloud dependencies. The project includes a desktop control application built with Tauri and React, alongside specialized Arduino-based firmware.

Frekvens is an open-source ESP32 firmware modification for IKEA Frekvens and Obegränsad LED displays. It adds smart-home integrations, 35+ display modes, and real-time connectivity via MQTT and WebSockets, transforming static hardware into internet-connected IoT displays.

An open-source AWD controller for Volkswagen and Audi Group vehicles using Haldex Generation 1, 2, 4, and 5 differentials. Built on the ESP32-C6, it utilizes dual CAN interfaces to intercept and modify vehicle signals, enabling custom torque distribution, standalone operation, and wireless tuning via a web interface.

Macerun is a bare-metal Minecraft 1.16.5 server implementation written in C for the ESP32-S3 microcontroller. It leverages FreeRTOS and raw lwIP sockets to deliver a functional multiplayer experience on highly constrained hardware, featuring procedural world generation and NVS-based state persistence.

A real-time thermal imaging system that streams 80x62 resolution frames from an ESP32-S3 to a Node.js web interface via TCP and WebSockets. It features a comprehensive dashboard with temperature overlays, live charting, and multiple color map presets for visual analysis.

An ESP32-C6 based environmental monitor that tracks CO2, VOCs, temperature, and more using the Zigbee protocol. Built on the ESP-IDF framework with FreeRTOS, it features seamless integration with Zigbee2MQTT and supports OTA updates.

A Wi-Fi provisioning and OTA update component for ESP32 using a captive portal. It automatically handles credential management via NVS and provides a web interface for network scanning and firmware uploads when no connection is available.

A comprehensive collection of example projects and hardware tests for the Super Mini ESP32-C3 development board. It covers a wide range of functionality including GPIO, ADC, deep sleep, serial communication, and wireless connectivity using the Arduino framework and PlatformIO.

An automated solar concentrator system that uses an ESP32-CAM and Arduino Pro Mini to focus sunlight onto a thermal target. It utilizes the ESP-IDF framework and FreeRTOS for computer-vision-based sun tracking and mirror orientation.

A ROS 2 bridge for controlling Xiaomi Cybergear motors using M5Stack hardware via micro-ROS and Ethernet. The system supports multiple motor configurations, real-time control modes, and parameter tuning through standard ROS 2 interfaces.

pico-vfs is a modular virtual file system designed for the Raspberry Pi Pico that provides a unified POSIX-compliant API for various storage media. It allows developers to mount multiple file systems, such as littlefs and FatFs, across physical storage like onboard flash and SD cards. The project streamlines embedded development by abstracting hardware differences and supporting standard C file operations.

A comprehensive collection of C programming experiments and educational materials covering embedded systems, Linux kernel modules, and network protocols. The project targets platforms ranging from AVR (ATmega, ATtiny) and ESP32 (using FreeRTOS and LwIP) to standard Linux environments, focusing on practical implementations of SPI, ePaper displays, and socket programming.

A comprehensive set of examples for integrating the zlib compression library with ESP-IDF on ESP32 series microcontrollers. It includes implementations for SPIFFS, HTTP servers, MQTT, and TCP communication, with a focus on optimizing memory footprint for embedded environments.

BreadboardOS is a firmware platform for the Raspberry Pi RP2xxx family designed for rapid prototyping with a focus on a command-line interface. Built on FreeRTOS, it integrates the LittleFS filesystem and microshell to provide a POSIX-like environment for interacting with hardware peripherals and managing system tasks.

A smart home controller for roof windows that utilizes Matter over Thread on the Espressif ESP32-C6 platform. It combines environmental sensing via an AM2301 sensor with hardware control for window automation, integrating directly into ecosystems like Home Assistant through a Thread border router.

This project integrates the Zig programming language and toolchain with the Espressif IoT Development Framework (ESP-IDF), supporting both Xtensa and RISC-V architectures. It enables developers to leverage Zig's modern features like comptime and meta-programming while maintaining full compatibility with ESP-IDF's FreeRTOS-based ecosystem.

ESPRI is an ESP32-based interface designed to extend the functionality of ham radios, such as the Quansheng UV-K5. Built using the ESP-IDF framework and FreeRTOS, it provides features like wireless UART, AFSK/Morse beacons, audio recording to SD cards, and a web-based control panel.

Netshlix is an ESP-IDF-based project that enables high-performance RTP/JPEG video streaming on the Smalltv-pro, a compact ESP32-powered display. It features a custom, fuzzed RTP/JPEG stack and implements a memory-efficient stripe-based rendering system to handle video decoding without a full framebuffer.