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

A small Arduino library for GSM modules, that just works

Tiny data-over-sound library

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

Simple OFDM modem for transceiving datagrams

Pothos demonstration applications

Source code for my c64-wifimodem

Old school Arduino modem, Bell 103 compatible, at 300 baud

Arduino Internet Watchdog Device. It will check for Internet connectivity and if it is lost, it will restart your router and/or modem. Includes HTML interface for controlling, monitoring and getting recovery reports.

Hayes modem emulation for ESP8266 modules

Arduino sample code to help you get started using the Soracom IoT Starter Kit!

A TCP client library for the M590 GPRS modem

Server part for modeminfo to get information about 3G/LTE keys in OpenWRT

Hayes modem emulation for Arduino / Ethernet modules

Simple standalone APRS tracker based on LibAPRS with GPS module, screen and rotary encoder

Simple Bluetooth low energy UART interface for KISS (APRS) TNC

qzmodem is a ZModem protocol implementation for Qt, which does not rely on any library other than Qt and can be used across platforms.The code passed the test on qt6.6, and it should work on other versions of Qt. XYmodem:https://github.com/QQxiaoming/qxymodem

Telit xE910 Series GSM Modem Arduino Library

A simple SMS library for GSM modules with unicode support