nanopb Projects

A Game Boy emulator and monster-battling RPG implemented as a Meshtastic module for the LilyGO T-Deck. It features a deterministic Gen-1 battle engine, a mesh-wide daycare system with save-file XP patching, and LoRa-based multiplayer battles, all running alongside standard mesh networking.

bleRPC is a high-performance framework for type-safe Remote Procedure Calls (RPC) over Bluetooth Low Energy, supporting platforms ranging from Zephyr-based microcontrollers to mobile and desktop environments. It leverages Protocol Buffers for code generation and implements a robust three-layer protocol stack to handle MTU-aware fragmentation and optional end-to-end encryption. The project is designed for efficiency, capable of running on devices with only 32 KB of RAM while achieving throughput up to 59 KB/s.

A Zephyr RTOS port of Espressif's network provisioning protocol, enabling secure Wi-Fi or Thread configuration over BLE, SoftAP, or device console. It integrates with Zephyr's native subsystems like wifi_credentials and net_mgmt while maintaining compatibility with official Espressif provisioning mobile apps.

A native Zephyr RTOS implementation of the Meshtastic mesh radio protocol for off-grid communication. It leverages Zephyr's hardware abstraction for LoRa, Bluetooth LE, and GNSS to provide a modular, portable stack compatible with the official Meshtastic ecosystem. The project includes features like AES-CTR encryption, packet routing, and a comprehensive shell interface for node management.

Tenstorrent System Firmware is a Zephyr RTOS-based firmware stack designed for Tenstorrent AI hardware controllers. It manages the System Management Controller (SMC) and Device Management Controller (DMC) for platforms like Blackhole and Grendel, providing custom drivers for AI accelerators and supporting secure updates via MCUboot.

ToothPaste is an ESP32-S3 based hardware receiver that converts Web-BLE signals into AES-128 encrypted USB HID keyboard and mouse commands. It provides a secure, driverless solution for entering complex passwords and executing DuckyScript macros on air-gapped or untrusted systems.

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.

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 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 DIY project for building ESP32-based environmental sensors and cameras integrated with Home Assistant via the ESPHome framework. It covers hardware selection, 3D casing design, wiring, and non-linear calibration to ensure accurate readings despite internal heat generation.

The official Zephyr RTOS firmware repository for Tenstorrent AI hardware. It provides comprehensive platform support, custom drivers, and application frameworks for Tenstorrent's AI ULC products, leveraging a specialized Zephyr fork.

A pre-configured Docker build environment for Nordic Semiconductor's nRF Connect SDK (NCS) v2.9.0. It includes the Zephyr SDK, nRF Command Line Tools, and the West toolchain, designed for consistent CI/CD pipelines and simplified local firmware development.

The official firmware for Trezor hardware wallets, supporting both the Trezor Model T and Trezor One. It features a modular architecture including a MicroPython-based core for modern devices and a legacy C implementation, backed by custom cryptographic and storage libraries.

An open-source keyboard firmware built on the Zephyr Real Time Operating System. It provides a modern, wireless-first platform for mechanical keyboards, supporting Bluetooth Low Energy, split configurations, and extensive customization through a modular system of shields and behaviors.

A lightweight RTOS-based platform designed for low-end IoT devices, featuring a Docker-based build environment and support for multiple architectures including ESP32, STM32, and ARTIK. It integrates IoT.js to enable JavaScript-based application development on embedded hardware.

A curated collection of high-quality resources, libraries, tools, and learning materials for the Zephyr RTOS ecosystem. It serves as a comprehensive directory for developers looking for official documentation, community-supported libraries, and hardware platforms compatible with Zephyr.