screen-camera-communication

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harsharaj-s / adaptive-physical-communication-system

Offline phone-to-phone file transfer using light and sound: animated QR codes and a data-over-sound modem, no Internet, Wi-Fi or Bluetooth. Open-source Flutter app for Android, iOS and web.

android dart ios qr-code reed-solomon ultrasonic file-transfer flutter fsk error-correction data-over-sound flutter-app screen-camera-communication offline-communication fountain-code acoustic-modem near-ultrasonic

Updated Sep 28, 2026
Dart

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