Quantum Leaps, LLC is aprofessional open sourcecompany that brings the asynchronous, event-drivenActive Objects (Actor model)to deeply embedded real-time programming. Quantum Leaps'QP Real-Time Event Frameworks (RTEFs)and the tools around them enable embedded developers to efficiently apply theActive Object (Actor) design pattern, 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.

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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 274
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++ 442 88
qmqmPublic
"Low ceremony" graphical modeling and code generation tool based on QP frameworks and Hierarchical State Machines (UML Statecharts)
Shell 165 41
qtoolsqtoolsPublic
QTools collection of host-based tools for embedded systems development with QP frameworks on Windows, Linux and macOS
C 140 50
modern-embedded-programming-coursemodern-embedded-programming-coursePublic
Companion repository to the "Modern Embedded Systems Programming" video course.
C 1.2k 190
spexygenspexygenPublic
Traceable specifications based on Doxygen
Python 25 1

Showing 10 of 28 repositories

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 140 50 0 0 UpdatedOct 30, 2025
spexygen Public
Traceable specifications based on Doxygen
QuantumLeaps/spexygen’s past year of commit activity
Python 25MIT 1 0 0 UpdatedOct 30, 2025
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++ 442 88 0 0 UpdatedOct 14, 2025
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 1,180 274 1 1 UpdatedOct 14, 2025
cmsis-packs Public
CMSIS packs released by Quantum Leaps
QuantumLeaps/cmsis-packs’s past year of commit activity
7 3 0 0 UpdatedOct 9, 2025
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 UpdatedOct 9, 2025
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 17 6 0 1 UpdatedOct 9, 2025
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 1,179AGPL-3.0 190 0 0 UpdatedOct 1, 2025
contributed Public
Software contributed to the QP framework ecosystem
QuantumLeaps/contributed’s past year of commit activity
3BSD-2-Clause 3 0 0 UpdatedSep 29, 2025
3rd_party Public
3rd-party code used in the QP/C and QP/C++ examples
QuantumLeaps/3rd_party’s past year of commit activity
C 7 6 0 0 UpdatedSep 28, 2025

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