A side-by-side comparison of the three serial buses every microcontroller project runs into — I2C, SPI and UART — across four axes: number of signal lines, speed, how many devices you can hang off them, and wiring distance. Includes a decision flow and what to look for on a scope.
KiCad 10.0 (March 2026): Allegro/PADS/gEDA importers, Design Variants, graphical DRC editor, time-domain track tuning, PCB Design Blocks, and more. Complete feature breakdown with V9 migration guide and the 10.0.1–10.0.5 patch history.
Learn how to safely light up an LED using Ohm’s Law. Calculate the correct resistor value, wire a breadboard circuit, and avoid common mistakes — a complete beginner’s guide.