| Wireless alarms are everywhere: homes, businesses, and public facilities. But what happens when someone deliberately blocks their signal? Th...
All items tagged with Circuits Circuit Design News and IoT & Sensors (27)
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| Control a water heater remotely with an ESP32 and Telegram. Switch it on or off and check its status from your smartphone—no home automation...
| 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 about your level of Internet-dependency. If you lost access to the Internet tomorrow, could you still de...
| Can a handful of transistors outperform a microcontroller? This acoustic sensor delivers reliable, fail-safe sound detection and shows how e...
| The CoffeeCaller nRF52840 board is an open-hardware development platform built around Nordic Semiconductor’s nRF52840, with full KiCad desig...
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| To weigh large items like bicycles or suitcases, standard scales are often impractical. This solution uses up to four small scales that tran...
| Need a Hall sensor? A strip of copper, a strong magnet, and an LM358 are all you need to explore the Hall effect hands-on. This experimental...
| Discover clever circuits in this new edition of Elektor Lab Talk, packed with real-world electronics projects from the Elektor team. In this...
| Check out the latest installment of Elektor Lab Notes. We cover some of the newest projects on our workbenches, including upcoming articles,...