Shell

The shell can work with a variety of devices.

For input devices, it supports:

block
columns 1
  block:Input
    A("USB Serial")
    B("UART")
    C("Wi-Fi (Telnet)")
    D("USB HID Keyboard")
    E("GPIO Buttons")
    F("GPIO Key Matrix")
  end

For output devices, it supports:

block
columns 1
  block:Output
    E("USB Serial")
    F("UART")
    G("Wi-Fi (Telnet)")
    H("OLED Display")
    I("TFT LCD Display")
  end

You can easily create shell commands. By simply linking the source or library that implements the command, it becomes available from the shell, making embedding and removal easy.