| Before smart cameras, wireless sensors, and connected security systems became commonplace, protecting a room could be as simple as a laser b...
More about Circuits & Circuit Design (397)
| Long before SDRs became commonplace, this sophisticated FM exciter demonstrated how to generate precision wideband transmissions in the 430–...
| System check! Elektor wants to know which technologies interest you the most. Which emerging technology has your attention?
| Run two RS232 terminals in parallel on a single serial host — no power supply, no null-modem cable. A diode matrix isolates both transmit li...
| A handful of CMOS logic chips is all it takes to build this versatile warning alarm. Discover a classic 1980 Elektor design that monitors se...
| System check! Elektor wants to know how you feel about PCB design. What type of PCB do you design most often? Which factors influence your d...
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| Build a compact battery-powered load-step tester to evaluate bench power supply transient response. Using MOSFET switching and Schmitt-trigg...
€5 (FREE for Members)
| An Arduino Nano microcontroller provides a simple and cost-effective platform for battery measurements and testing. When paired with TestLab...
| Can a simple medium-wave radio receive shortwave broadcasts? In 2005, Burkhard Kainka answered that question with a creative two-transistor...
| Spectrum analyzer span can make an RF measurement look convincing while giving the wrong frequency and amplitude. In this Elektor TV excerpt...