A standard terminal emulator.
It is open source and supports SSH2 protocol and UTF-8 display.
Telnet, SSH and console connections are supported.
Supports serial port connection (PC communication).
* The image introduced here is an old version of Tera Term.
The serial port setting specifies the COM port you are using. If you are using USB-Sirial connection, open "Device Manager" and check what number of COM has been assigned.