Open Source Real-Time Operating Systems

JesFs is a lightweight, robust file system specifically engineered for serial NOR-Flash memories in ultra-low-power embedded systems. It provides a minimal footprint, optimized wear leveling, and high-speed data access, making it suitable for IoT applications requiring reliable data persistence and secure firmware updates.

OpenThread is an open-source, OS-agnostic implementation of the Thread networking protocol designed for low-power wireless mesh networking in home and commercial automation. It features a highly portable architecture with a narrow platform abstraction layer, supporting System-on-Chip (SoC), Network Co-Processor (NCP), and Radio Co-Processor (RCP) designs while maintaining a small memory footprint.

TensorFlow is an end-to-end open-source platform for machine learning that provides a comprehensive ecosystem of tools, libraries, and community resources for both research and production. It features a flexible architecture allowing for seamless deployment across diverse hardware including CPUs, GPUs, and TPUs, while offering stable APIs in Python and C++ alongside a rich set of specialized extensions.

LVGL is a lightweight, open-source C graphics library designed to build professional user interfaces on any microcontroller or microprocessor. It features a hardware-independent architecture with low memory requirements, supporting advanced rendering features like anti-aliasing, animations, and complex layout engines.

MCUboot is a secure, OS-independent bootloader for 32-bit microcontrollers that provides a standardized infrastructure for system flash layout and firmware image management. It enables secure software upgrades through cryptographic image verification, robust update swap mechanisms, and hardware-assisted security features across multiple RTOS platforms and architectures.

Nuklear is a portable, single-header immediate-mode graphical user interface toolkit written in ANSI C (C89). It is designed as a dependency-free, embeddable UI library that provides a modular approach, outputting primitive draw commands or vertex buffers rather than abstracting platform-specific rendering backends.

SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, and full-featured SQL database engine. It functions as a serverless, zero-configuration database that compiles SQL statements into bytecode for execution on a custom virtual machine, making it the most widely deployed database engine in the world.

TFT_eSPI is a high-performance graphics and font library optimized for 32-bit microcontrollers, providing hardware-accelerated rendering via DMA and PIO. It features a robust Sprite system for flicker-free updates and advanced anti-aliasing for both vector graphics and typography across multiple display interfaces.