Comment by hootz

10 hours ago

I love this type of stuff. Some years ago I did something similar, but instead of QR Codes it used a convoluted mess of audio frequency modulation to send data through sound between devices. This is much more practical if you have two cameras.

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hootz

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xnx  9 hours ago

> a convoluted mess of audio frequency modulation

Like a modem

  • hootz  9 hours ago

    I guess lmao, but much more rudimentary, less reliable and with loads of issues, as it had to blast piercing sounds through a speaker and then capture those with a microphone. But it was pretty cool when it worked!