Quantum Leaps, LLC is aprofessional open sourcecompany that brings the asynchronous, event-driven, and non-blockingActive Objects (Actor model)to real-time embedded programming. Quantum Leaps'QP Real-Time Event Frameworks (RTEFs)and the tools around them enable embedded developers to efficiently apply theActive Object (Actor) model, hierarchical state machines, graphicalmodeling, and automatic code generation.

State Machines & Tools for Embedded Systems

Beyond the RTOS

The unique Quantum Leaps ecosystem enables embedded developers to move beyondthe traditional RTOS and apply theActive Object (a.k.a. Actor) design pattern,hierarchical state machines,model based design and automatic code generationin small embedded systems, such as ARM Cortex-M MCUs (micro-controller units). Since 2005,thisasynchronous event-driven approach and practical, efficient software have beendelivering a competitive advantage tohundreds of companies around the worldin a widevariety of markets.

PinnedLoading

qpcqpcPublic
QP/C Real-Time Event Framework/RTOS implements event-driven Active Object (Actor) model combined with Hierarchical State Machines. Specifically designed for embedded systems (e.g., ARM Cortex-M MCUs).
C 1.2k 280
qpcppqpcppPublic
QP/C++ Real-Time Event Framework/RTOS implements event-driven Active Object (Actor) model combined with Hierarchical State Machines. Specifically designed for embedded systems (e.g., ARM Cortex-M M…
C++ 452 91
qmqmPublic
"Low ceremony" graphical modeling and code generation tool based on QP frameworks and Hierarchical State Machines (UML Statecharts)
Shell 168 41
qtoolsqtoolsPublic
QTools collection of host-based tools for embedded systems development with QP frameworks on Windows, Linux and macOS
C 143 50
modern-embedded-programming-coursemodern-embedded-programming-coursePublic
Companion repository to the "Modern Embedded Systems Programming" video course.
C 1.3k 209
spexygenspexygenPublic
Traceable specifications based on Doxygen
Python 29 1

Showing 10 of 26 repositories

qp-arduino Public
QP/C++ real-time event framework/RTOS for Arduino (ARM Cortex-M)
QuantumLeaps/qp-arduino’s past year of commit activity
C++ 44GPL-3.0 28 0 0 UpdatedFeb 18, 2026
spexygen Public
Traceable specifications based on Doxygen
QuantumLeaps/spexygen’s past year of commit activity
Python 29MIT 1 0 0 UpdatedFeb 14, 2026
qm Public
"Low ceremony" graphical modeling and code generation tool based on QP frameworks and Hierarchical State Machines (UML Statecharts)
QuantumLeaps/qm’s past year of commit activity
Shell 168 41 6 0 UpdatedFeb 14, 2026
qpcpp Public
QP/C++ Real-Time Event Framework/RTOS implements event-driven Active Object (Actor) model combined with Hierarchical State Machines. Specifically designed for embedded systems (e.g., ARM Cortex-M MCUs).
QuantumLeaps/qpcpp’s past year of commit activity
C++ 452 91 0 0 UpdatedFeb 11, 2026
qpc Public
QP/C Real-Time Event Framework/RTOS implements event-driven Active Object (Actor) model combined with Hierarchical State Machines. Specifically designed for embedded systems (e.g., ARM Cortex-M MCUs).
QuantumLeaps/qpc’s past year of commit activity
C 1,235 280 0 0 UpdatedFeb 11, 2026
qpcpp-examples Public
Examples for the QP/C++ Real-Time Event Framework (see qpcpp repository)
QuantumLeaps/qpcpp-examples’s past year of commit activity
C++ 5 2 0 0 UpdatedFeb 11, 2026
qpc-examples Public
Examples for the QP/C Real-Time Event Framework (see qpc repository)
QuantumLeaps/qpc-examples’s past year of commit activity
C 20 6 0 1 UpdatedFeb 11, 2026
modern-embedded-programming-course Public
Companion repository to the "Modern Embedded Systems Programming" video course.
QuantumLeaps/modern-embedded-programming-course’s past year of commit activity
C 1,272AGPL-3.0 209 0 0 UpdatedFeb 3, 2026
qtools Public
QTools collection of host-based tools for embedded systems development with QP frameworks on Windows, Linux and macOS
QuantumLeaps/qtools’s past year of commit activity
C 143 50 0 0 UpdatedJan 11, 2026
cmsis-packs Public
CMSIS packs released by Quantum Leaps
QuantumLeaps/cmsis-packs’s past year of commit activity
7 3 0 0 UpdatedJan 7, 2026