Articles

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.

Simple way to make hardware revision (REV1, REV2, REV3) using only one ADC pin, that helps to easy identify board version using MCU firmware, which give a change to easy maintain all board revisions taking into account all the device schematic changes .

The only possible and correctly working way to extract (export) .step model from the EasyEDA footprint.

Load switches are used for power control of any loads, typically it's used to fully enable or disable power of integrated circuits (chips) to achieve low power consumption in sleep mode.

Here is simplest high-side load switch on discrete components, that can be used instead of special ICs. Firstly some work simulation in MicroCap and then real testing with board.

Using slider – simple but powerful instrument for debugging and developing.