Useful tips

Real example of using Gold Edge Plating option on the custom power bank PCB.

Mini versions of ESP modules become more and more widespread, but their soldering is harder.

Simple and reliable method of board-to-board (B2B) connection using right-angle terminals and screws.

Small schematic tip if you're going to use PoE in your devices related to the minimum load.

Smart approach to designing high-power dissipation devices uses multiboard construction.

Simple unobvious flag that make a change to use ESP32-S3 with PSRAM at industrial operating temperature range.

Important note about standard 4-pin PC fan when using PWM signal to control it.

Small thing, that could damage your devices and should be taken into account when using isolated DC-DC modules.

How to deal with addressable RGB LED (like WS2812B) when you have only 3.3V rail?

It's logical to just connect PHY to Ethernet switch using RJ45 Cat cable, but for real schematic you will want to use optimized solution without additional isolation transformer.

Demonstration of the Power Good (PG) pin working of DC-DC converter and where it could be useful

This advice can significantly improve your components library for achieving better precision of mechanical sizes.

How to use net ties to improve schematic and board tracing.

Using new reference designator styles (U1 -> U1501) with page numbers to improve readability and modularity of the schematic sheets.