Start minicom by passing it an appropriate custom configuration name. which would be saved to my home directory as $HOME/.minirc. My preference is to name custom minicom configuration files using the convention. Configure minicom for use over UART serial term With all that in mind, let’s configure minicom for our non-root user account. config/minicom/, which would be a nice change since I don’t like polluting my top level dot files with a bunch of related configurations. Note: The minicom repository has a TODO item to move. Minicom will resolve the full path name to the configuration file on its own. When loading a saved configuration into minicom, pass only the part of the configuration file.i.e $HOME/.myminirc would become /home/dustfinger/.minirc._home_dustfinger_.myminirc. If you provide a path to the configuration, all instances of the path separator will be replaced by an underscore and the resulting string will be used as the.Custom configuration names will be saved as.If, on the other hand, you navigate to the configuration menu after having started minicom without the -s flag, then minicom will save the configuration files to your home directory. If you pass the optional flag -s which starts minicom directly in the configuration menu, then Minicom’s behaviour is to save the configuration to the compiled in directory only, regardless of whether or not you are running as root.Minicom has some quirks when it comes to saving and loading configuration files. The configuration directory for the access file and the configurations We can look up the required group membership using the ls command. This is achieved by adding the correct group membership to our user account. Our user account requires rw permissions to initiate a connection with the device. The rest of this blog post will simply use ttyUSB0 as the name of the serial port, but you must use the correctly named serial port assigned to your connected device if you are following along. The device name for a serial connection is properly referred to as a serial port. Also, the index number at the end of the name is determined by the devices minor number and may not be 0. There are more serial port names than I mention here. If your system architecture is ARM, you might see a name like this ttyAMA0 and if it is a Samsung, then the device might be named ttySAC0. In my case the TTY device name was ttyUSB0 however, if your cable is not a USB converter, then it might be named ttyS0 instead. usb 1-2: FTDI USB Serial Device converter now attached to ttyUSB0 ftdi_sio 1-2:1.0: FTDI USB Serial Device converter detected Minicom has some beneficial features that are not available in all terminal based serial communication programs such as adding operating system timestamp to serial data.Usb 1-2: Manufacturer: FTDI It is also useful for data logging output from serial devices such as Arduino Uno. ![]() Minicom is useful to create console for devices having no display such as switches, routers or server blade enclosure. For this purpose, though, one may use Kermit on DOS, such as FreeDOS, does not need Linux so can use a 286 or possibly an 8086 or 8088. This can be done using nothing more than a 386 laptop with a Minicom floppy distribution such as Pitux or Serial Terminal Linux. It now comes packaged in most major Linux distribution repositories such as Debian, Ubuntu and Arch Linux.Ī common use for Minicom is when setting up a remote serial console, perhaps as a last resort to access a computer if the LAN is down. ![]() Minicom is a menu-driven communications program. Minicom includes a dialing directory, ANSI and VT100 emulation, an (external) scripting language, and other features. Minicom is a text-based modem control and terminal emulator program for Unix-like operating systems including Cygwin, originally written by Miquel van Smoorenburg, and modeled somewhat after the popular MS-DOS program Telix but is open source. Minicom running a Windows Server 2003 EMS prompt
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