| Volumio is a popular audio player app that runs on multiple platforms, and the Raspberry Pi is one of them. This project lets you add remote...
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| Long-term exposition of your body, or parts of it, to vibrations may result in injury. But how do you measure the risk? This project might h...
| Cheap, powerful and equipped with Bluetooth and Wi-Fi, the ESP32 has quickly become a popular development platform for homegrown IoT applica...
| More than 30 years after the accident that destroyed the nuclear powerplant in Chernobyl (Ukraine), the radiation it created still has measu...
| It appears that Europe is way, way behind China when it comes to the production of batteries. Billions will have to be invested to keep up....
| A few years ago, Elektor published a 30-V, 3-A adjustable benchtop power supply dubbed UniLab2. To keep the total outlay down, it had a rath...
| When Leon Theremin built his now famous musical instrument, he only had valves at his disposition. Today we have the choice between analog a...
| Where many homegrown continuity testers are limited to a battery and a buzzer or maybe just an LED, this design uses a Wheatstone bridge ins...
| Benchtop power supplies with power transformers are heavy and expensive, especially when designed to supply a few hundred watts. Furthermore...
| New technologies often find applications in rather unexpected domains. Take for example LoRa, Sigfox and similar IoT technologies. While eve...