Visual Logic Design
- Click-to-place canvas with a zoomable grid
- Searchable palette of 50+ pre-built blocks
- Live parameter editing with inline validation
Design it. Simulate it. Flash it.
Block Designer is a self-hosted visual environment for embedded control — a lightweight, self-contained take on model-based design. Draw your control loop, simulate it with real solver fidelity, then flash it straight to an STM32.
How it works
One short loop — from a blank canvas to blinking hardware.
1 · Design
Place blocks from the palette and connect their ports. Wires route themselves; parameters validate as you type.
2 · Simulate
Run the model through a real DAE solver and watch every signal in the built-in oscilloscope — before any hardware is involved.
3 · Deploy
Generate safe, pure-Rust firmware — with an optional auditable style — or flash an STM32 in one click. The board runs exactly what you simulated.
Features
Everything you need for the design → deploy loop.
Real-time Simulation
- High-fidelity DAE solver for continuous-time control
- Configurable step sizes and integrator methods
- Symbolic Jacobian for pole / eigenvalue analysis
- Hardware-validated resource checking
Embedded Targeting
- STM32 targeting for the F4 family (G4 in preview)
- One-click flashing via a managed portable toolchain over ST-Link
- Live trace via Real-Time Transfer (RTT)
- Automatic pin / peripheral conflict checking before you flash
Code Generation
- Generates safe, pure-Rust firmware
- Compact, or a human-reviewable Auditable style
- The board runs exactly what you simulated — no hand-written glue
- Portable Generic core in Rust or C — deploy to any MCU (preview)
- Managed portable Rust toolchain
Signal Analysis
- Integrated oscilloscope-style Signal Monitor
- Automatic eigenvalue (pole) and root-locus analysis
- Open-loop Bode response with gain / phase margins
- Real-time diagnostics: execution time, jitter, overruns & CPU utilization
What happens on your machine, stays on your machine
- Code generation, compilation, and flashing all run on your machine
- Designs and generated firmware are never uploaded to the cloud — nothing leaves your computer
New here? Learn the basics in 7 short lessons.
Canvas, wiring, parameters, simulation, the scope, examples, and flashing to hardware.
Open the tutorial →Download
Free for evaluation and personal use. Grab the latest build — no build toolchain required.
macOS Signed & notarized
Apple Silicon (M-series) .dmg.
Signed and notarized by Apple — on first launch just click Open; see macOS setup.
Windows Unsigned · work in progress
x64 zip — extract and run block_designer.exe.
Not code-signed yet, so Windows will block it on first run. A one-time “Run anyway” gets you in; see Windows setup & troubleshooting.
Each link points at the latest build. Binaries are free for personal use.
Found a bug or have an idea? I'd love to hear it — open an issue or start a discussion on GitHub.