Coolest Projects 2026 opens globally for young makers; a free online showcase that matches International Day of Education’s youth-led theme.

Microcontrollers for Kids shows a classroom-tested path from Scratch to Open Roberta to Arduino UNO, with printable coding ...

With loudspeakers, an important parameter is the frequency at which their cones resonate. This clever Arduino-based tester ...

ESP32-E22 Wi-Fi 6E is Espressif’s first tri-band Wi-Fi 6E co-processor, adding dual-mode Bluetooth and offloading protocol ...

International Day of Education on January 24 is a good time to see why Code Clubs work worldwide: local delivery, shared values, and learner-led making. International Day of Education today, January ...

Measuring dynamic currents with an oscilloscope is challenging, but this updated differential current probe makes it simple ...

Benchtop EMC testing: why ferrites barely help, how to split common- vs differential-mode noise, and the two-inductor fix that works.

Elektor’s book, Apple Macintosh, explores the machines that reshaped personal computing — from the 1984 original to today. Packed with photography and engineering insight by Giovanni Becattini, it’s a ...

Almost all commercially available microphone amplifiers draw their power from a 48V phantom power supply. If this is unavailable or unsuitable, the solution is to build a self-powered amplifier.