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led_marquee
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A simple LED marquee mod, based on my nixie tubes mod
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Vanessa Dannenberg 4bb68ec009 basic multi-line support 
Stack up a wall of LED panels, any horizontal and vertical amount

Set a channel on the upper left panel, leave the others un-set, and
connect a LuaC to it via digilines.

Long strings sent to that channel will be displayed using all panels,
starting at the upper-left and working from left to right, top to
bottom, wrapping from line to line as appropriate (similar to printing
to a shell terminal).

string.char(28) can be inserted anywhere to force a linefeed.

As usual, printing continues from node to node until the program either
finds a panel with a different non-empty channel than the first one, or
it finds a panel that's facing the wrong way.

If the program finds something other than a panel, it wraps to the next
line.  If it finds something other than a panel twice in a row, that
signals that text has wrapped off of the last row, and printing is cut
off.

Lines of panels don't need to be the same length, the program will wrap
as needed.

This commit also gets rid of the end-of-line padding, uses proper
string.rep() to create the all-off and all-on fills (each of which is
1kB), and fixes one or two other minor issues.

Strings are trimmed to 1 kB.

Panels are not erased between prints.
 		2018-08-16 01:46:03 -04:00
models fix minor mesh/triangulation glitch 2018-08-15 19:51:53 -04:00
textures reduce color palette to 28 entries to make room for future control codes 2018-08-15 19:32:56 -04:00
LICENSE Initial commit 2018-08-15 02:17:03 -04:00
README.md reduce color palette to 28 entries to make room for future control codes 2018-08-15 19:32:56 -04:00
depends.txt new recipe 2018-08-15 03:33:07 -04:00
description.txt Initial commit 2018-08-15 02:17:03 -04:00
init.lua basic multi-line support 2018-08-16 01:46:03 -04:00
mod.conf Initial commit 2018-08-15 02:17:03 -04:00
screenshot.png update screenshot 2018-08-15 11:55:25 -04:00

README.md

LED marquee mod

by Vanessa Dannenberg

This mod provides set of alphanumeric LED marquee panels, controlled by Mesecons' Digilines mod.

Simply place a panel, right-click it, and set a channel.

Then send a character, a string, or one of several control words to that channel from a Mesecons Lua Controller and the mod will try to display it. The panels use the standard 7-bit ASCII character set (with a few alterations).

A single character will be displayed on the connected panel. A numeric message (i.e. not a string) will display the first digit on the connected panel.

Strings will be displayed using all panels in a lineup, so long as they all face the same way, starting from the panel the Lua Controller is connected to, going left to right. The other panels in the line do not need to be connected to anything - think of them as being connected together internally. Only the panel at the far left need be connected to the Lua Controller.

The string will spread down the line until either a panel is found that faces the wrong way, or has a channel that's not empty/nil and is set to something other than what the first is set to, or if a node is encountered that is not an alpha-numeric panel at all.

Panels to the left of the connected one are ignored (unless they, too, have their own connections).

You can put multiple lines of panels end to end to form independent displays, so long as the panels that start each of the lines have unique channel names set.

The string is padded with spaces and then trimmed to 64 characters.

Any unrecognized symbol or character, whether part of a string or singularly is ignored, except as noted below.

This mod uses the full ISO-8859-1 character set (see https://en.wikipedia.org/wiki/ISO/IEC_8859-1 for details), plus a bunch of symbols stuffed into the empty 128-159 range that should be useful on a marquee:

  • 128,129: musical notes
  • 130-140: box drawing glyphs
  • 141-144: block shades
  • 145-152: arrows
  • 153-156: explosion/splat
  • 157-159: smileys

The panels also respond to these control messages:

  • the keywords "off", "colon" and "period" translate to a blank space, ":", and ".", respectively (they're leftover from the nixie tubes fork, but might be useful anyway)
  • "del" is mapped to character #127, a square with an X in it.
  • "allon" is mapped to character #144, the full/all-on block graphic.
  • "cursor" or character code 31 will display a short, thick, flashing line at the bottom of the panel.
  • "off_multi" turns all panels in a lineup off
  • "allon_multi" turns on all LEDs of all panels in a lineup.

A byte value of 0 to 27 will change colors (i.e. string.char(0 to 27) ). Color values 0 to 11 are:

Red (0), orange, yellow, lime, green, aqua, cyan, sky blue, blue, violet, magenta, or red-violet (11)

Colors 12 to 23 are the same as 0 to 11, but lower brightness.

Colors 24 - 27 are white, light grey, medium grey, and dim grey.

The left-most/"master" panel will remember the last color used, and defaults to red.

You can use "get" and "getstr" to read the one character from the connected panel. These messages will not read the other panels in the lineup.

All panels emit a small amount of light when displaying something.

The panels only mount on a wall.