An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention.

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.

1. Joints - The Foundation of Movement Joints are the moving links in a robotic arm. They let the arm bend, rotate, or change ...

Discover how to build a simple wireless power transfer system at home using readily available components like enameled copper wire, an LED, a 2N2222A transistor, and a 9V battery. This step-by-step ...

Using simple components such as oil, salt water, lipids and proteins, plus routine genetic engineering techniques, it is possible to create simple nanofluidic ...

Engineering toys give kids the opportunity to learn STEM subjects through hands-on play. They’re an engaging way for kids to ...

Single-phase power factor correction (PFC) circuits—a kind of front-end AC/DC converters—are ubiquitous in a variety of ...

The gorgeous soundscapes of 2025 were what we carried out of the theatre, off the couch, and away from the screen the most — here are the best original scores across film, TV, anime, and videogames th ...

In the desktop 3D printing world, we’re fortunate to have multiple online repositories of models that anyone can load up on their machine. Looking to create a similar experience but for electronic ...

The road to creating a blue LED was long and rough, but in 1993, it burst onto the scene. Learn about the struggles and breakthroughs to find the right recipe.

A team of researchers are developing a platform to 3D print affordable sensors for detecting environmental hazards.

Build festive decorations using Arduino and Raspberry Pi with these five creative holiday projects and video tutorials ...