HARPRON Engineering Software Meet BOLD
Engineering Software

Engineering tools for embedded systems.

HARPRON builds software for those who design embedded control and logic: model, simulate, verify and generate code with precision, without the weight of enterprise tools.

Products2026
BOLDBlock modeling and C99 code generation
v0.1
+
Next toolsIn development
DeterminismThe same model always generates the same code
Portable C99No dynamic allocation and no global state
SpecificationNormative behavior, tied to tests
AccessibleTools for teams of any size
Products

HARPRON software.

Each tool covers one stage of embedded systems development. BOLD is the first one.

Available · Windows

Model control logic with blocks and state machines, simulate with test scenarios, verify as you edit and generate deterministic C99 code, ready to integrate into your target.

  • Block modeling
  • State machines
  • Simulation
  • Continuous verification
  • Range analysis
  • C99 code
FlightControl › Controller ● Valid
Block diagram in BOLD: sensors, comparison, delay and logic gates producing the armed and alarm outputs.

Next tools

New HARPRON products are in development. Want to be notified? Get in touch.

Keep me posted
Approach

How we build engineering software.

Principles that apply to every HARPRON tool.

01

Determinism

The same input always produces the same output, byte for byte. No surprises between one version of your build and the next.

02

Specification first

Behavior is defined in writing before it is implemented, and every rule is covered by tests.

03

Accessible

Professional tools within reach of startups, universities and small teams.

04

Transparency

We say clearly what each tool guarantees and what it does not guarantee yet.

Industries

For teams that build things that move.

From the first prototype to the production product, with tools that grow with the project.

Drones, UAV and eVTOL

Flight logic, operating modes and protections modeled and simulated before taking off.

Electric vehicles

BMS, VCU and power control with verified integer types.

Robotics and autonomy

State machines and discrete control with predictable code.

Embedded systems

Teams that write C by hand today and want architecture, testing and traceability.

Industry

Automation and industrial equipment with deterministic logic.

Universities and competitions

Control engineering education and Formula SAE, aerodesign and robotics projects.

Company

Engineering software, made by engineers.

HARPRON builds tools for embedded systems with one conviction: good engineering tools should not be out of reach.

Our focus is model-based development: making the model the source of truth, from simulation to the code that runs on the target.

  • Local desktop tools. Your model and your code stay with you.
  • Open, readable formats. Text-based projects, ready for version control.
  • Code you can review. No black box between the model and the target.
  • Direct support. Talk to the people who build the tool.
Contact

Let's talk about your project.

Evaluating BOLD with your team, partnerships, academic use or new products: write to HARPRON.