| Never miss a blown fuse again! This ultra-simple four-component circuit ensures you’re instantly alerted when a mains fuse fails, using an a...
| Never miss a blown fuse again! This ultra-simple four-component circuit ensures you’re instantly alerted when a mains fuse fails, using an a...
| Raspberry Pis and other SBCs are ideal for sophisticated process control, but require significantly more power than microcontrollers. Why no...
| The ET5410A+ is an affordable DC load, but its fan is very noisy. Let’s modify it for both quieter operation at light loads and better perfo...
| Troubleshooting coffee machines with hidden magnets? Powered by AAA batteries and a Hall sensor, this simple magnet finder lights the way. L...
| Compared to wiring, the printed circuit board allows us to organize our designs in a professional, rational and compact manner. However, to...
| We hebben de laatste aflevering afgesloten met een paar generatoren met opamps - de blokgolf- en de driehoekgenerator. In de laatste “Alle b...
| To develop and service electrocardiogram (ECG) equipment, an artificial signal that mimics a real ECG is essential. Elektor presented this e...
| Learn how to read two potentiometers on a single digital input using a Schmitt-Trigger inverter and just six components. This compact, affor...
| RS-485 or RS-422 buses are still widely used in industry for access control, video surveillance and many other applications. However, the st...
| When measuring distortion in audio devices, it makes sense to filter out the controlling sinusoidal signal before the spectrum analyzer. Thi...