KursLab https://kurslab.icu/ Electronics tinkerer's notebook en-us Tue, 19 May 2026 04:00:00 -0000 PCB Design Mistakes I've Made Twice https://kurslab.icu/blog/pcb-mistakes.html https://kurslab.icu/blog/pcb-mistakes.html Wed, 01 Apr 2026 04:00:00 -0000 Ordering PCBs is cheap enough now that iteration is viable for hobby projects — five boards for $5 from JLCPCB, delivered in two weeks. The low cost makes the learning curve painless if you're systema... First Real Project with the RP2040 https://kurslab.icu/blog/rp2040-first-project.html https://kurslab.icu/blog/rp2040-first-project.html Fri, 12 Sep 2025 04:00:00 -0000 I've been doing Arduino projects for years and the RP2040 (the Raspberry Pi Foundation's microcontroller) looked like a gimmick when it launched — why do I need two cores on a microcontroller? Then I ...