This board is used to use a pulse coin acceptor to control the on-time of a device—in my case, an air conditioner. It controls a display with the countdown timer and stores the total amount collected.

Merry Christmas from Elektor! As the year comes to a close, the Elektor Team extends its warmest wishes to everyone in the electronics community. Whether you're a seasoned electronics pro, a dedicated ...

Schaub-Lorenz Stereo 6000 revisits a 1969 Elektuur DIY tape-recorder build, showing how serious homebrew audio engineering once was.

The organizers at Elektor are seeking presentations for the online conference on RISC-V on April 15, 2026. The call for presentations is open until January ...

As embedded and IoT systems grow more connected and critical, their security risks extend well beyond traditional software ...

Elektor is currently developing the 2026 webinar programme under the umbrella of Elektor Academy Pro. The plan is to offer ...

Embedded Academy meets Elektor: 36 courses for developers and engineers – secure yours now with an Elektor discount!

A blast from the Elektor archives: this 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load — even below 1 V.

The Si4732-based MiniRadios produce an annoying audible Theremin-like effect in SSB mode when the antenna base is touched. An external or internal modification can help. All versions of the ...

This project is about a digital clock with nixie tube readout in valve (tube) technology. I have used absolutely NO SILICON TRANSISTORS or chips, let alone a microcontroller. I have used 7 germanium ...

The Arduino UNO R4 brought a modern 32-bit platform to the classic UNO form factor, adding higher voltage tolerance, USB-C, a Renesas RA4M1 MCU, and a long list of robustness upgrades. The WiFi ...