How to Make a Custom PCB

3-Second Blueprint (English)

1. Capture the controller schematic in KiCad first, then route copper traces on the PCB layout to replace messy prototype wiring.
2. Use a flux pen and fine-tip tweezers to hand-solder small surface-mount (SMD) components cleanly onto fabricated pads.
3. Add female header footprints to integrate modular boards like an Arduino, RTC module, and servo outputs onto one carrier PCB.