If you want to move past "copy-paste" coding for hardware, buy a reprint or find a scan. It forces you to think in voltages and currents, not just libraries and interrupts.
Let’s crack open the spine and see why this 40-year-old compendium refuses to fade away. To be precise, Elektor (a German/Dutch electronics magazine, pronounced Electric with a long ‘E’) published several volumes. The most famous is "305 Circuits" (often subtitled A Compilation of Practical Electronic Circuits ). Elektor 305 Circuits
It is exactly what it says on the tin: 305 distinct circuit designs, sorted by function. There is no fluff. Each page typically features a schematic on the left, a short description in the middle, and a component list on the right. No fancy 3D renders. No Arduino libraries. If you want to move past "copy-paste" coding