PCB Design
Net Classes and Trace Width: When Should a PCB Trace Be Wider?
A practical guide to PCB net classes and trace width for small boards: signal traces, 3V3, 5V, battery paths, ground, power vias, and a pre-Gerber checklist.
Notes
PCB Design notes and layout practice
PCB Design
PCB Ground Planes: GND Is More Than a Net Name
A practical guide to PCB ground planes, return current, GND layout mistakes, stitching vias, decoupling paths, and copper pour checks.
PCB Design
Choosing Capacitors for Electronics: Simple Part, Easy Mistake
A beginner guide to choosing capacitors for circuits: capacitance, voltage rating, decoupling, ceramic types, DC bias, and ESP32 values.
PCB Design
How to Hand-Solder SMD Components for Beginners
A beginner-friendly SMD soldering guide covering tools, easy parts, resistors, capacitors, multi-pin ICs, flux, hot air, and PCB inspection.
PCB Design
A Practical PCB Review Checklist Before You Send It to Fab
A practical PCB review checklist before fabrication: schematic, ERC, footprints, clearance, power, antenna, USB pairs, silkscreen, Gerbers, and BOM.
PCB Design
Reading an Open-Source ESP32 Schematic Before Reusing It
An ESP32 TouchDown case study for reviewing an open-source schematic before reuse, covering power, reset, boot, USB, connectors, and tests.