u8g2 Projects

This project displays real-time Spotify track information and synchronized lyrics on a 1.3" OLED display using an ESP32. It utilizes a Python backend to bridge Discord's Rich Presence data and fetches lyrics from the LRCLIB API, featuring a custom UI with animations and a progress bar.

InkCast is an ESP32-S3 firmware for a battery-powered e-paper weather station that balances high-density information with extreme power efficiency. Built using the Arduino framework on FreeRTOS, it features a web-based configuration portal and supports multiple weather providers to deliver a long-lasting, wall-mounted dashboard.

A custom-built handheld gaming console powered by the ESP32-S3 and a dual-screen setup (TFT and OLED). It runs E-OS, a custom operating system built on FreeRTOS that features a dual-core architecture for dedicated rendering and logic. The project includes 15 custom-coded games and several applications, utilizing libraries like TFT_eSPI and U8g2 for high-performance graphics.

RisalDash is a C++ library for ESP32 and ESP8266 that automatically generates real-time web dashboards with zero front-end coding. It features a zero-waste architecture to minimize flash usage, built-in captive portal provisioning, and native integration with Home Assistant and AI agents via the Model Context Protocol (MCP).

A real-time aircraft tracking system built for the ESP32-S3 that visualizes live flight data from the OpenSky Network API. It utilizes a dual-core FreeRTOS architecture to handle concurrent networking and high-speed rendering across a dual-display setup, featuring a hybrid map system optimized for hardware with limited PSRAM.

SkySweep32 is an ESP32-based passive drone detection system that monitors radio spectrum across the 900 MHz, 2.4 GHz, and 5.8 GHz bands. Utilizing FreeRTOS for concurrent signal processing, it identifies UAV control and video transmission patterns through hardware-accelerated scanning and signal fingerprinting.

M5_Crystal is a modular firmware for M5Stack devices like the M5StickCPlus2 and Cardputer, providing a suite of tools for Wi-Fi, NFC, and Bluetooth interaction. It utilizes the M5Unified and M5GFX libraries for hardware abstraction and is built on a custom wrapper system designed for rapid feature development.

A high-performance wavetable synthesizer firmware for ESP32-S3 and ESP32-P4 microcontrollers that plays SoundFont 2 (SF2) samples. It utilizes PSRAM for large sample banks, supports USB MIDI for plug-and-play connectivity, and features real-time audio effects like reverb and chorus.

QBIT is an open-source desktop companion robot and personal IoT avatar based on the ESP32-C3. It features a custom monochrome animation system, integrated Wi-Fi management via NetWizard, and seamless Home Assistant integration through MQTT. The project includes a full-stack web platform for remote interaction, device claiming, and community animation sharing.

PixelRoot32 is a lightweight, modular 2D game engine written in C++17 for ESP32 microcontrollers and PC simulation. It features a scene-based architecture, NES-style audio synthesis, and a high-performance rendering pipeline optimized for embedded hardware using DMA transfers.

A custom-built portable MP3 player based on the ESP32 that features Bluetooth A2DP audio streaming and a dedicated OLED user interface. It utilizes a modular C++ architecture and a custom-designed PCB to manage media playback from a MicroSD card.

An embedded firmware for nRF51 and nRF52 microcontrollers designed to drive e-paper displays for calendar and digital photo frame applications. It features Bluetooth image transmission, Chinese lunar calendar support, and a Web Bluetooth interface for cross-platform configuration.

A comprehensive configuration guide and code repository for the HW-364A and HW-364B ESP8266 modules featuring integrated 0.96-inch OLED displays. It provides corrected I2C pin mappings, implementation examples using the U8g2 library, and specific Arduino IDE configuration settings to ensure reliable operation.

dtuGateway is an ESP32-based firmware that bridges Hoymiles HMS-series solar inverters with integrated Wi-Fi to smart home ecosystems. It provides reliable data monitoring and remote control via MQTT, REST API, and openHAB, bypassing the limitations of the official cloud interface. The project supports various local displays and features a captive portal for easy configuration.

A security-focused firmware for ESP32 microcontrollers that replicates Pwnagotchi-style peer detection and network interaction. It supports Wi-Fi scanning, deauthing, and BLE functions while providing an emotional interface through various display modules.

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.

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.

A 2.4GHz broadband interference tool built for the ESP32 platform using dual nRF24L01+ modules. It targets Bluetooth, BLE, WiFi, and RC drone frequencies for security testing and educational purposes.

Lumen is an open-source desktop hardware node based on the ESP32-C3 and FreeRTOS. It functions as a programmable interaction device similar to a Stream Deck, featuring a 240x240 display, rotary encoder, and integrated sensors for system monitoring and game state feedback.

Firmware for an ESP32-C6 based E-Paper display device featuring BLE provisioning, AWS IoT connectivity, and OTA updates. It targets the Spectra 6 7.3-inch display and integrates motion sensing via the KXTJ3-1057 accelerometer.

A technical implementation and hardware guide for the ESP32-C3 Supermini board equipped with a 0.42-inch OLED. It provides a specific software workaround for the U8g2 library to support the non-standard 72x40 resolution using coordinate offsets. The project includes pin mappings and an Arduino-based example for I2C display communication.

A custom firmware project for a home-built radio receiver based on the ESP32-S2 and SI4732 module. It features a high-resolution Sharp LS027B7DH01 LCD and utilizes the Arduino framework with libraries like U8g2 and PU2CLR SI4735 for multi-band radio reception.

An advanced internet radio streamer built on the ESP32-S3 platform, featuring support for MP3, AAC, VORBIS, and FLAC streams. It integrates a web server for remote control, an OLED display for visualization, and supports both rotary encoder and infrared remote inputs.

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.

PixelForge is a browser-based image converter that transforms PNG and JPG images into Arduino-compatible C header files. It supports RGB565 and OLED bitmap formats for popular embedded display libraries like TFT_eSPI and U8g2, targeting platforms such as ESP32, STM32, and RP2040.

A Rust-embedded firmware for the SparkFun ProMicro RP2040 that implements a variant of the Chordite chorded keyboard. It leverages the Embassy async framework to provide HID keyboard and mouse functionality with support for IMU-based motion sensing and LCD displays.

DisplayKit is a web-based drag-and-drop UI designer for embedded display development. It enables developers to visually design screens and generate optimized C++ code for the TFT_eSPI and U8g2 libraries, targeting platforms such as ESP32, STM32, and RP2040.

A comprehensive end-to-end IoT solution for precision agriculture featuring ESP32-based environmental monitoring and automated irrigation control. The system integrates 4G LTE connectivity, MQTT communication via HiveMQ Cloud, and a modern web dashboard for real-time data visualization and remote management.

A high-performance Bitcoin solo miner firmware for ESP32, ESP32-S3, and ESP32-C3 microcontrollers. It utilizes hardware-accelerated SHA-256 and pipelined assembly optimizations to deliver hashrates up to 1+ MH/s while supporting various TFT and OLED displays.

A demonstration project showcasing Embedded Swift on the ESP32-C6 microcontroller. It features a rotating 3D cube animation on an OLED display using the U8g2 library and I2C communication within the ESP-IDF framework.

Rust-based firmware for the EchoKit ESP32-S3 voice interaction device. It utilizes the ESP-IDF framework to provide voice processing, display management, and network connectivity for AI-driven hardware applications.

A comprehensive collection of Lua modules and a build environment for NodeMCU firmware, targeting ESP8266 and ESP32 microcontrollers. It includes features for WiFi management, Home Assistant integration, and various sensor/controller implementations using SPIFFS and LFS.

An open-source Lua-based firmware for ESP8266 and ESP32 WiFi SoCs. It features an asynchronous, event-driven programming model and includes over 70 built-in modules for hardware interaction, networking, and file system management.

A unified hardware abstraction library for microcontrollers including STM32 and ESP32, designed to provide Arduino-like interface consistency. It features a modular architecture for displays, sensors, and input devices, supported by custom VSCode extensions for submodule management.

A modular DMX-512-A toolbox and USB interface built on the Raspberry Pi RP2040 microcontroller. It supports up to 16 DMX universes via USB-CDC NCM networking, ArtNet, and E1.31/sACN, featuring a modular hardware design and an integrated web-based configuration portal.

A comprehensive port of the U8g2 monochrome display library to the RT-Thread RTOS. It supports over 200 types of monochrome screens and provides extensive font and drawing capabilities for embedded user interfaces.