#cplusplus #arduino #data_over_sound #ecc #fsk #internet_of_things #modem #pairing #python #qrcode #serverless #sound_library #ultrasound

**ggwave** is a small library that lets you send and receive data using sound. It works with devices like smartphones and microcontrollers, allowing them to communicate without needing the internet. This can be useful for sharing files or sending commands between devices in the same room. The library uses a special way of encoding data into sound waves, making it robust against background noise. Users can test it easily with apps like Waver on Android, iOS, or even in a web browser[1][3].

https://github.com/ggerganov/ggwave