Perfboard Planner

The Challenge

Developing custom embedded systems and modifying electronic circuits often involves complex point-to-point wiring. Manually tracing these paths in your head can lead to bridging the wrong pins or making permanent physical mistakes with a soldering iron. The challenge was to create a digital prototyping sandbox that could cleanly map out these layouts and ensure accurate hardware modifications before physical assembly.

Technical Deep Dive

Software Architecture

• Built natively with Python 3.10+ and standard libraries to remain lightweight.
• The core UI is driven by Tkinter.
• Features an auto-scaling viewport using a dynamic spacing engine in the generate_board() function, adapting the pad pitch to match the window size.

Interactive Features

• Matrix modes include Label Mode for text tags, Wire Mode for point-and-click routing, and Delete Mode for quick cleanup.
• A dedicated sidebar palette enables users to color-code power rails, ground nets, and data signals.
• Integrates Pillow (PIL) to export layouts as high-resolution png images or PostScript vector files directly to the local machine.

Results

• Developed a fully functional, responsive desktop application using Python.
• Eliminated the need for scrolling across massive grids, such as 50x60 matrices, by implementing dynamic canvas scaling.
• Streamlined the hardware prototyping workflow by allowing digital mistake correction before soldering.
• Established a clear open-source roadmap for future features, including multi-layer support and a Bill of Materials (BOM) tracker.