Autodesk AutoCAD 2027
The drafting application that the DWG format was built around.
Schematic capture, mixed mode simulation, microcontroller firmware debugging, and PCB layout in one environment, with the full component libraries and every simulation model unlocked.
Overview
What separates Proteus from other electronics packages is that the simulator understands firmware. A microcontroller placed on the schematic can be loaded with a compiled hex file and run, with the surrounding analogue and digital circuit simulated at the same time. Press a button on the virtual board and the code responds, the display updates, and the oscilloscope trace changes, all before any hardware exists.
The schematic capture side is conventional in the best sense, with a huge bundled component library, hierarchical sheets for larger designs, and proper design rule checking against the netlist before anything reaches layout. Buses, off page connectors, and multi part packages all behave the way an engineer expects, and annotation is handled automatically across sheets.
Layout is a full PCB editor rather than an afterthought. Autorouting is available but the manual routing tools are good enough that most people use them, with push and shove behaviour, length matching for differential pairs, and copper pour that recalculates as tracks move. Output covers the standard manufacturing files plus a 3D view of the finished board with component models placed on it, which catches mechanical clearance problems early.
This build includes the professional level libraries, the full simulation model set covering the popular microcontroller families and peripheral devices, and the advanced simulation features such as graph based analysis, frequency sweeps, and noise analysis. The board size limit and the model restrictions present in the demonstration version do not apply.
Feature set
Load a compiled hex file onto a simulated microcontroller and watch the code drive the surrounding circuit in real time.
Analogue and digital simulation in the same schematic, with graph based analysis, sweeps, and noise study.
Very large bundled library covering discrete parts, peripheral devices, displays, and the common microcontroller families.
Full board editor with push and shove routing, length matching, dynamic copper pour, and standard manufacturing output.
Renders the assembled board with component models placed, so mechanical clearance issues surface before fabrication.
Oscilloscope, logic analyser, pattern generator, and protocol analysers wired straight onto the schematic.
Changes in this build
Installation
Hardware
| Processor | Intel or AMD, 64-bit, quad core recommended for large simulations |
|---|---|
| Memory | 8 GB minimum, 16 GB recommended for dense boards |
| Graphics | 2 GB VRAM with OpenGL support for the 3D board view |
| Storage | 6 GB free space |
| Display | 1920 x 1080 or higher, second monitor useful for schematic and layout |
| System | Windows 10 version 21H2 or newer, Windows 11 supported |
Package
| Title | Proteus Professional |
|---|---|
| Version | 9.1 SP2 |
| Developer | Labcenter Electronics |
| Category | CAD & 3D |
| Platform | Windows 10 / 11 (64-bit) |
| Package size | 1.12 GB |
| Interface languages | English |
| Release identifier | BS-09010201 |
| Listed | 3 years ago |
| Last rebuilt | 2 weeks ago |
| Total downloads | 149,184 |
Questions
No. The professional level limits are removed, so board size and component count are unrestricted.
Any toolchain that produces a standard hex or elf output. Several popular compilers can also be driven from inside the environment.
The professional model set ships with the package. Vendor supplied spice models can be imported alongside them.
Yes. Designs from previous versions convert on open, and the original file is left untouched.
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