| A full-featured variable frequency oscillator using only an ESP32 and a Si5351 clock generator linked by four I2C wires, no LCD, no rotary e...
More about Elektor Labs (842)
| Build an advanced DIY Tesla Coil Plasma Rife Machine that transmits frequencies wirelessly through glowing plasma energy. Inspired by the or...
| A single-op-amp chopper preamp (OPA388) that gives any handheld DMM 100 nV resolution and turns a basic scope into a 10 µV/div instrument up...
| This ATtiny85-based mains relay timer cuts power to unattended soldering irons after 15, 30, 45, or 60 minutes. Timer selection uses success...
| This EasterEgg antenna mod transforms a mini donut antenna into a magnetic broadband loop with improved gain and directivity. Using a simple...
| This compact through-hole PSU design features two independently adjustable LM317-based regulated outputs, supporting both EI30 and EI42 main...
| This simple inductance meter uses an ATmega328 and LM339 to measure coil values at low cost. The design provides a practical way to estimate...
| This fuel injector control tester drives up to six gasoline injectors simultaneously for cleaning and diagnostics. A CPLD generates adjustab...
| THREE-PHASE SINE WAVE VCOThis three-phase sine wave VCO uses classic OTA devices like the RCA3080 to generate three sinusoidal outputs with...
| MeshSat is an open-source gateway that connects Meshtastic LoRa mesh networks to the Iridium satellite network. Running on a Raspberry Pi vi...