Cooperative multitasking for Arduino, ESPx, STM32, nRF and other microcontrollers

A C++ await/yield emulation library for stackless coroutine

No RTOS need any more, you will see... Function pointers queues classes library for Arduino or any other platform. Use it anywhere. Manipulate with your tasks without delays, keep your interrupts extremely fast!

ESP8266 Co-operative Multitasking

The QuarkTS port for C++. An open-source OS for embedded applications that supports prioritized cooperative scheduling, time control, inter-task communications primitives, hierarchical state machines and CoRoutines.

Forth for Arduino Nano - Interactive, Multi-tasking, EEPROM turnkey.

Pretty tiny Scheduler or ptScheduler is an Arduino library for writing non-blocking periodic tasks easily.

A utility that allows you to turn any window(s) into an overlay for your games and programs, by allowing you to introduce: topmost, clickthrough, and transparency to them.

TimerEvent provides an easy way to trigger functions every set time and is a non-blocking alternative to delay() function. TimerEvent is based on TimedAction 1.6 by Alexander Brevig (alexanderbrevig@gmail.com). It is updated to work with Arduino IDE 1.8.5.

Cross-platform cooperative multitasking (fiber) framework.

Pre-emptive multitasking kernel for AVR architecture MCUs

Simulation Framework for the Static Scheduler

Multitasking in MS-DOS

Extremely lightweight 1:N & M:N multitasking via coroutines and protothreads library

Minimalist preemptive multitasking for Arduino

Use hardware Timer1 to run timed tasks

An Arduino library for creating Tickers, which will notify user that a given period has elapsed.

Webradio with esp32 and vs1503

Arduino Simple Co-operative Scheduler

Demonstration how to create a preemptive multitasking OS for embedded devices