# Sending Text Out Over A Serial Port - MikroTik Script RouterOS

    Sometimes there's a need to send out some (short) text over a serial port to control other devices.

    As RouterOS doesn't (yet?) provide a native command to do that, you can work around with the following little script:

    /interface ppp-client add name="scripttemp" dial-on-demand=no port=serial0 \
    modem-init="I am the string" null-modem=yes disabled=no
    :delay 1
    /interface ppp-client remove [/interface ppp-client find name="scripttemp"]

    The following assumptions were made:

    We want to use serial port "serial0"
    We have configured the serial port to match the other devices' setup (baud-rate etc.)
    serial0 (or whatever port you use) is not used by RouterOS serial-console
    The script sends the text configured as modem-init string out over the serial port when run.
    So in the example above, it would send "I am the string" (without the quotes).

    Credit: wiki.mikrotik.com