IETF RFC2217 implementation in Rust
Kermit 95 (C-Kermit for Windows and OS/2) - scriptable internet and serial communications with terminal emulation
Simulate any equipment (multimeter, oscilloscope, detectors, motors) over tcp, udp or serial line
Concurreny agnostic serial line communication in python
cyclades-serial: An RFC-2217 (serial over TELNET) client
Helps ssh communicate with a sshd over firewalls via ngrok.com