mcore1976/antispy-jammer
Simplest ultrasonic ANTISPY voice recording jammer based on ATTINY/ARDUINO module (PWM or optionally AD8933 signal generator) with audio amplifier or H-bridge+MOSFETs driving piezo ultrasonic transducers + coils
GitHub repository with 391 stars and 69 forks.
Language: C++
Topics: attiny85, attiny13, avr-gcc, microphone-jammer, voice-assistant-jammer, 25khz, ultrasound, ultrasonic, arduino, digispark