Tutorials on electronics for beginners, hobbyist, and experienced geeks. Electronics is a vast area that covers analog and digital systems. Codrey explains how to build your own analog circuits and transforming them into digital blocks.

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Learn To Play with Ceramic Resonators

As Wikipedia says, a ceramic resonator is an electronic component consisting of a piece of a piezoelectric ceramic material with two or three metal electrodes attached. Like the similar quartz crystal, when connected in an […]

Universal RADAR Motion Detector

There are a lot of different parts in the electronics world, and often parts with the same functionality come indifferent forms and sizes. Now it is the time to pick another cheapo microwave motion sensor […]

NCV Tester Secrets

A non-contact voltage tester (NCV Tester) makes electrical work easier and safer – and for a few bucks you can own it from your nearest home improvement center. The NCV tester is a simplest and […]

mmWave RADAR Sensor Primer

I have been using several microwave motion sensor doppler radar modules for years, but in cases where an ultrafine movement detection is demanded, those cheapo modules did not perform well. So I decided to have […]