TL;DR
Steffen Vogel discovered a used Sylvac S_Cal EVO Bluetooth caliper on eBay, which he initially thought would be a better measuring tool. However, he ended up turning it into a valuable input device for FreeCAD, a popular open-source CAD software. He developed a Python library called `sylvac-measure` that enables the caliper to transmit measurements via Bluetooth.
Why This Was Curated
The article provides a practical project that bridges software and hardware by demonstrating how to use a Bluetooth caliper as an input device for FreeCAD, making it highly relevant for software developers interested in hardware. It is accessible and actionable, with a clear explanation of the Python library and FreeCAD addon, although it could benefit from more detailed step-by-step instructions.