Qodem is a re-implementation of the Qmodem DOS shareware communications package, updated for more modern uses. Major features include Unicode support, scrollback buffer, capture file, screen dump, dialing directory, keyboard macros, script support, Xmodem, Ymodem, Zmodem, and Kermit. It can connect over serial port, telnet, ssh, rlogin, and command line, and supports multiple terminal emulations including ANSI.SYS, Avatar, VT100/102, VT220, and Linux.
The Tinyserial library is a space-saving alternative to the Arduino software distribution's libraries for reading and writing characters and strings to the USART0 serial port on the Atmel ATmega168 and ATmega328p MCUs found on Arduino Diecimilla and Duemilanove boards. While the Arduino software distribution's libraries provide interrupt-driven serial I/O with far more features and support more MCUs, the Tinyserial library provides only the most basic polling-based serial I/O. However, the Tinyserial library uses far less Flash and SRAM, thereby giving you room to implement larger and more complicated applications on your boards. The Tinyserial library respects the GNU libc ABI, so you can call into it from C and C++ programs.
acgtools is a driver for the ACG HF MultiISO RFID reader written entirely in Python and including several developer tools, including EEPROM backup/edit/restoration for enabling some of the more exotic features supported by this hardware. There are also sample applications, notably an e-Passport reader.
ssterm is a console-based simple serial port terminal. It features painless serial port configuration, has no dependencies outside of a standard Python 2 installation, is contained in a single file, and provides a variety of useful input/output features, including plain ASCII representation, split hexadecimal/ASCII representation, pure hexadecimal representation, color coding bytes and characters, raw input/output with control character forwarding, and remapping of transmitted and received newlines.
vmodemd is a telnet server designed to run old DOS BBS systems and door games. It listens for incoming TCP connections on a defined port, does a minimal telnet handshake if needed, and then starts to proxy all data to a PTY which is bound to a dosemu virtual serial port. vmodemd supports any number of virtual modems, can display customized banners if all modems are busy, can terminate a serial app when a telnet connection is unexpectedly dropped, and run custom scripts before passing control to dosemu, allowing you to pass relevant data like incoming IP address to the DOS app.
Libtermui is a terminal driver library. It is fully standalone and lightweight. It does not rely on termcap or curses libraries. It can drive terminals on a TTY or through a telnet connection directly on a TCP socket. It is fully re-entrant, and can be used to drive multiple terminals from different threads. It includes a getline feature (similar to the one in readline) and some console user interface facilities.