Python is a great language for automating everyday tasks, from managing files to interacting with websites. Libraries like ...

储备了不少墨水屏，一直没派上用场，继【用三色墨水屏显示哪吒】之后，又摆弄了一下 7.5 寸 7 色墨水屏（悬空放了两个小时，弯了-。-），换了个 3.7 寸双色继续折腾。

Struggling with GPS indoors? Learn how to build a DIY real-time indoor tracking system using BLE and Wi‑Fi triangulation.