Source code

d = DMX:init(parameters)
d:run()

Parameters (table)

• channels – (optional, defaults to 3) number of DMX channels to use
• resolution – (optional, defaults to 20) number of DMX updates per second. Larger value gives smoother transitions, but increases CPU usage
• transition – (optional, defaults to 2) soft transition time in seconds
• port – (optional) RS-485 port name, usually you don’t have to change this value

Resident programms

DMX handler should be placed inside a resident script. Sleep time interval must be set to 0.

Once the script is added we can add the program source in script Editor:

Source code

if not d then
  d = DMX:init({
    channels = 3,
    transition = 2,
  })
end
 
d:run()

 
Setter (used in other scripts):

Source code

DMX.set(channel, value)

• channel – DMX channel number [1..512]
• value – DMX channel value [0..255]

 

Predefined scene example:
The following example should be placed inside a resident script. Sleep time defines scene keep time (at least 1 second).

Source code

if not scenes then
  -- 3 channel scene
  scenes = {
    { 255, 0, 0 },
    { 0, 255, 0 },
    { 0, 0, 255 },
    { 255, 255, 0 },
    { 0, 255, 255 },
    { 255, 0, 255 },
    { 255, 255, 255 },
  }
 
  current = 1
end
 
-- set current scene values
scene = scenes[ current ]
for i, v in ipairs(scene) do
  DMX.set(i, v)
end
 
-- switch to next scene
current = current + 1
if current > #scenes then
  current = 1
end

 

Random scene example:
The following example should be placed inside a resident script. Sleep time defines scene keep time (at least 1 second).

Source code

-- number of steps to use, e.g. 3 steps = { 0, 127, 255 }
steps = 5
-- number of channels to set
channels = 3
-- first channel number
offset = 1
 
for i = offset, channels do
  v = math.random(0, (steps - 1)) * 255 / (steps - 1)
  DMX.set(i, math.floor(v))
end