antispy-jammer
MCP_DAC
antispy-jammer | MCP_DAC | |
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2 | 1 | |
151 | 30 | |
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8.3 | 4.6 | |
about 1 month ago | about 1 month ago | |
C++ | C++ | |
- | MIT License |
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antispy-jammer
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Ultrasonic microphone jammer..
Specifically, I'm looking at This project.
- Device to disrupt audio recording
MCP_DAC
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How to use an audio jack
I'm using a 12-bit 2-channel SPI DAC to take digital audio information from WAV files and outputting directly to a 3.5mm audio-out jack, with a couple of electrolytic caps to AC couple the output. Try the MCP4922 chip. It connects to the ESP32 with 3 SPI pins (clock, chip select, data) and needs a 5v reference voltage. It outputs 0v-5v depending on the input values of 0 to 4095. I use this library to access the MCP4922: https://github.com/RobTillaart/MCP_DAC and it works great and the resulting audio sounds great. It's not audiofile level, but I've done public performances and nobody can really tell the difference.
What are some alternatives?
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LaColorduino - I build my own clone of "LaMetric"-smartwatch but with some Colorduino for Twitch, YouTube, Twitter, CSGO, etc.. (Working)
ESP8266Audio - Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, MP3, and AAC files on I2S DACs or with a software emulated delta-sigma DAC on the ESP8266 and ESP32
neurotechdevkit - Neurotech Development Kit (NDK)
MAUS - Arduino based Mouse Jiggler