littlefs Projects

An optimized Nintendo Entertainment System (NES) emulator rewritten for the ESP32 platform. It supports full audio emulation and achieves native speeds on dual-core ESP32 hardware using the Arduino framework and TFT_eSPI library.

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.

OpenFIRE is an advanced open-source firmware for RP2040 and RP2350 microcontrollers, providing high-performance IR light gun tracking with perspective adjustment. It features dual-core optimization to separate input polling from camera processing, ensuring low latency and high responsiveness. The system supports a wide range of peripherals including solenoids, rumble motors, and OLED displays, all configurable via a dedicated desktop application.

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.

A multi-mode firmware for ESP32 microcontrollers designed to interface with Balboa Spa controllers via RS485. It provides WiFi connectivity, historical data tracking for temperature and heater usage, and supports multiple interfaces including Web, MQTT, and ePaper displays.

An advanced OTA update server for ESP8266 and ESP32 microcontrollers, designed for compatibility with the ESPAsyncWebServer library. It provides a web interface for updating firmware and filesystems (SPIFFS/LittleFS) with support for custom styling, authentication, and event callbacks.

A specialized port of the ESP32-Marauder firmware tailored for the Cheap Yellow Display (CYD) hardware family. It provides a comprehensive suite of WiFi and Bluetooth testing tools, including wardriving, packet capture, and signal analysis, optimized for various ESP32 and ESP32-S3 touch screen modules.

A French-localized firmware for the Flipper Zero based on Xtreme Firmware. It features an enhanced asset management system, a 30-level progression system, and advanced Bluetooth spoofing capabilities for Bad Keyboard attacks.

A comprehensive firmware for ESP32 and ESP8266 microcontrollers that interfaces with Mitsubishi Ecodan FTC controllers via the CN105 connector. It provides a bridge to MQTT for Home Assistant integration, featuring advanced control logic like onboard compensation curves and short-cycle protection.

A versatile IoT RGB lighting system developed with Arduino for ESP8266, ESP32, and Raspberry Pi Pico. It supports various LED configurations like strips and rings, offering customizable effects, music-reactive modes via a PC client, and a web-based animation editor.

A versatile ESP32-based firmware designed for offensive security and Red Team operations. It supports a wide range of hardware including M5Stack and Lilygo devices, providing features for WiFi attacks, BLE manipulation, RF/RFID interaction, and a built-in JavaScript interpreter.

An open-source air-quality station based on the ESP32-S3, featuring a professional-grade sensor suite and a touch-enabled LVGL user interface. It integrates MQTT for Home Assistant discovery and provides a local web portal for configuration and telemetry monitoring.

A lightweight FTP server library for Arduino-compatible microcontrollers, including ESP32, ESP8266, RP2040, and STM32. It enables remote file management—including uploads, downloads, and directory navigation—over standard FTP clients by interfacing with internal flash or external SD storage.

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 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 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.

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 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.

A high-performance MSX1 emulator designed for the Raspberry Pi Pico (RP2040) microcontroller. It supports VDP, PSG, SCC, and FM sound emulation, providing VGA video output and USB keyboard/gamepad input for a complete retro computing experience on embedded hardware.

An intelligent arousal management system for ESP32 that connects to Lovense devices via Bluetooth LE. It uses a pressure sensor for automated edging control and features a real-time web dashboard for monitoring and configuration.

A fast, lightweight, and asynchronous email client library for Arduino supporting SMTP and IMAP protocols. Designed for 32-bit microcontrollers, it provides full RFC compliance, SSL/TLS security, and support for attachments and filesystem integration.

Chronos Watchy is an alternative firmware for the Watchy e-ink smartwatch, built using the LVGL graphics library and the Arduino framework for ESP32. It enables advanced features like turn-by-turn navigation, smartphone notifications, and activity tracking through integration with the Chronos companion app.

A firmware project for ESP32-S3 that acts as a USB-to-BLE HID bridge, allowing Bluetooth controllers like the Xbox Wireless Controller to be used with the Nintendo Switch. It utilizes ESP-IDF, FreeRTOS, and the TinyUSB stack to emulate a Nintendo Switch Pro Controller over USB while acting as a BLE GATT client.

A custom ESP8266 firmware for Geek Magic smart clock clones featuring NTP synchronization, Pomodoro timers, and a web-based configuration dashboard. It utilizes the TFT_eSPI library for display management and LittleFS for asset storage. The project also includes a Linux-based companion server for forwarding system notifications to the device display.

A Wi-Fi-enabled pixel art player built on the ESP32-P4 platform featuring multi-buffer rendering for gapless playback of animated WebP, GIF, and PNG files. It integrates with the Makapix Club social network via secure MQTTS and provides a local web interface for device management.

A free, DIY AI voice assistant built using the ESP32-S3 development board and HuggingFace Spaces. It integrates voice recording via I2S, cloud-based STT/LLM/TTS processing, and local audio playback using the Arduino framework. The project leverages PSRAM for efficient audio handling and features a TFT display for status updates.

A high-performance wavetable synthesizer firmware for the ESP32-S3 that enables high-quality SoundFont 2 (SF2) playback. It leverages PSRAM for sample loading and supports USB MIDI, external I2S DACs, and runtime switching between LittleFS and SD card storage.

A multi-platform LoRa Terminal Node Controller (TNC) firmware supporting ESP32, nRF52, RP2040, and STM32. It provides a serial CLI for raw LoRa interaction, BLE packet sniffing, and a KISS-TNC mode for APRS, AX.25, and IP-over-LoRa networking.

A modern WiFi connection manager for ESP32 applications using the Arduino framework. It provides a captive portal for credential configuration, persistent storage in NVS, and non-blocking operation integrated with ESPAsyncWebServer.

A professional Wi-Fi manager for ESP32 and ESP8266 microcontrollers featuring a real captive portal and modern UI served from LittleFS. It provides robust credential storage, configurable fallback policies, NTP synchronization, and integrated status LED/button handling.

An ESP32S3 port of the OpenFIRE light gun firmware, providing open-source light gun capabilities with IR tracking and force feedback. It introduces wireless connectivity using the ESP-NOW protocol and supports both ESP32S3 and RP2040 microcontrollers.

An open-source firmware for ESP8266-based GeekMagic devices like the HelloCubic Lite and Smalltv-Ultra. It provides a complete replacement for the factory software, featuring a custom ST7789 display driver, LittleFS storage, and a web-based configuration interface.

A firmware solution for Bluetooth Low Energy (BLE) electronic display tags supporting NRF52840 and ESP32 microcontrollers. It provides a framework for managing e-paper displays, configuring tag settings, and uploading images over BLE. The project is built using the Arduino framework and PlatformIO.

A modular AIoT firmware for the Pixlpal desktop companion based on the ESP32-S3 SoC. It utilizes the ESP-IDF framework and FreeRTOS to power an interactive 128x64 RGB LED matrix display with features like Wi-Fi connectivity, BLE control, and audio processing.

A WiFi-connected LED matrix clock and weather display built for ESP8266 and ESP32 microcontrollers. It utilizes the MAX7219 driver to display real-time NTP clock data and live weather updates from OpenWeatherMap, all configurable via a built-in web interface.

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.