| This self-powered low-noise microphone amplifier boosts dynamic microphones without relying on 48-V phantom power. Designed for low-impedanc...
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| This sensor device for burglary prevention detects movement in front of a window using a low-power radar sensor and flashes brightly as an i...
| This ESP32 drone guide shows how to use esp-fc firmware to configure an ESP32 flight controller in Betaflight and fly with a radio controlle...
| This No-Silicon digital clock is a true nixie tube clock built with vacuum tubes and dekatrons — no microcontrollers, no chips, no transisto...
| Win Replica is a connected indoor weather vane built from a recycled Camembert box. Using an ATmega328 and an nRF24L01, it receives wind dir...
| This MiniRadio Anti-Theremin Effect Mod fixes the SI4732 SSB Theremin effect caused by antenna touch. By adding an inductive antenna mod, in...
| From hands-on prototyping and lab experimentation to magazine highlights and special collaborations, Elektor Lab Talk #41 wraps up the year...
| This radio-controlled FM alarm clock syncs time automatically using a 433-MHz signal from a central time server. Its LED display adjusts to...