Protect your own privacy and don't get recorded with this little ultrasonic microphone jamming device !
Full project data : https://github.com/mcore1976/antispy-...
Simple ultrasonic voice recording jammer based on ATTINY13 / ATTINY85 with resistor ladder based DAC and 2 transistors driving piezo ultrasonic transducers. It prevents from unauthorized human speech recording by hidden microphones and voice assistants.
The project is based on following concept presented here : https://sandlab.cs.uchicago.edu/jammer/ , here https://github.com/y-x-c/wearable-mic...
and here http://people.cs.uchicago.edu/~ravenb... , however my design is cost optimized and very simplified in comparison to the one above.
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Thank You
#ALCHNL #ATTINY #ARDUINO
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