Transmit data with sound using Web Audio -- Javascript binding for libquiet

Serverless, peer-to-peer, local file sharing through sound

A small Arduino library for GSM modules, that just works

Tiny data-over-sound library

Transmit data with sound. Includes binaries for soundcards and .wav files.

Quiet for Android - TCP over sound

Audio MODEM Communication Library in Python

iOS framework for the Quiet Modem (data over sound)

Hacking Technicolor Gateways wiki repository

Data transmission over sound waves written in JavaScript without any dependencies. All you need is just microphone, speakers and the browser!

An ESP8266 based RS232 <-> WiFi modem with Hayes AT style commands and LED indicators

A Go driver for AT based modems

A python-based automated call attendant, call blocker, and voice messaging system running on a Raspberry Pi. Screens callers and block robocalls and scams with a low-cost Raspberry Pi and modem.

E2E encryption for multi-hop tty sessions or portshells + TCP/UDP port forward

LoRa Basics Modem LoRaWAN stack

Simple OFDM modem for transceiving datagrams

MicroPython implementation on Ai-Thinker GPRS module A9 (RDA8955)

通过使能破解华为HG8321R光猫打开Telnet突破超管限制

Hologram device-side Python SDK - Send messages to the cloud in just 3 lines of code!

A NodeMCU (ESP8266) based WiFi modem for the C64's user port