| A faulty “donut” antenna shipped with an ESP32-based ATS-Mini receiver was wired to cancel its own signal. Rewiring the loop fixed it and do...
All items tagged with Circuits Circuit Design News and wireless (12)
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| Wireless alarms are everywhere: homes, businesses, and public facilities. But what happens when someone deliberately blocks their signal? Th...
| Can a simple medium-wave radio receive shortwave broadcasts? In 2005, Burkhard Kainka answered that question with a creative two-transistor...
| A compact FM wireless microphone turns a simple electret capsule into a short-range transmitter tunable across the FM band. Built around two...
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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...
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| The low-cost ESP32-C3 SuperMini modules feature a compact SMD antenna. However, the small antenna design greatly restricts the effective Wi-...
| Build your own compact FM stereo test transmitter that generates ultra-low distortion audio and precise VHF signals using only simple CMOS l...
| Looking for more wireless- and communication-related projects and tutorials? Visit Elektor's "Wireless & Communication" page and download th...
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| How can you remotely control home heating? Here’s an SMS remote control system using the mobile network, featuring relay outputs and a tempe...
| Back in May 1982, Elektor published a matchbox radio project that pushed the limits of miniaturization. Built into a compact box, the fully...