Example of the custom aluminum board with LEDs and USB-C power port and additional optional temperature monitoring sensors (both digital and analog).

Let's take a look at the simple example of using interrupt from hardware timer to generate signal at the one of the GPIO pin.

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

New interesting simple solution for high current applications, that can be used with ordinary FR-4 PCBs.

How to start with the new interesting ESP32C2 (ESP8684) SoC using modern and convenient VSCode IDE.

Fixing incorrect predefined XTAL (onboard crystal) frequency, that cause incorrect frequency of output PWM signal and rubbish charactersin debug terminal.

Let's find out the ESP32 internal pull-up/pull-down resistance by measuring of the real resistance of the using ampermeter.

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.

Make board tracing more enjoyable and electrical schematics easy-to-read using net coloring, this feature is available in KiCad and Altium Designer.

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

If you make a device with external RTC module this essay can help you to make simplest backup powering (reverse power) using coin cell battery.