= Source "Display"

This is a feedback-only source used to display text on MIDI-controllable hardware displays (LCDs, OLED displays, 7-segment displays, ...).

== Protocol menu

Lets you choose the display protocol, which tells ReaLearn how it should communicate with the hardware display and which options it supports.

Mackie LCD:: Use this for MCU-compatible LCDs.
Depending on your particular control surface, there can be up to 8 LCDs, each of which has up to 2 lines.
Mackie XT LCD:: Use this to control the displays of MCU XT devices (= control surface extenders, which provide additional faders and displays).
X-Touch Mackie LCD:: Like _Mackie LCD_ but also supports colors on certain X-Touch devices.
X-Touch Mackie XT LCD:: Like _Mackie LCD XT_ but also supports colors on certain X-Touch devices.
Mackie 7-segment display:: Use this for MCU-compatible 7-segment displays (you know, the ones which only show digits).
There's usually one small assignment display and a larger one for showing the time code.
SiniCon E24:: Use this with the https://www.sinicon.io/[SiniCon E24 controller].
Launchpad Pro - Scrolling text:: Displays looped scrolling text on a Novation Launchpad Pro.
Only seems to work if you set _Output_ to `MIDIOUT2 (Launchpad Pro)`.
Studiologic SL Keyboard display:: Displays text on the display of Studiologic SL keyboards (tested with SL88).

== Display menu

Choose the particular display or display portion to which you want to send text.

== Line menu

Choose the line number.

CAUTION: For controllers with multiple displays and lines, ReaLearn allows you to spread your text over all available displays and lines.
This is great if you need to display a lot of text but one display doesn't provide enough space.
But be aware: xref:further-concepts/general.adoc#feedback-relay[] doesn't work nicely anymore if you make use of this feature.

If you want to know how to define which text shall be sent to the displays, please see xref:further-concepts/glue.adoc#text-feedback[textual feedback] in the xref:user-interface/mapping-panel/glue-section.adoc[].