Overriding the default signaling functions in the Morse module. The message is flashed out by a blink(1) device I have attached to my laptop.

blinkingmorse.lua

morse = require 'morse'
blink = require 'blink'

d = blink.open()

dotLength = 100 -- milllis

morse.setDotGenerator(function()
  d:blue()
  blink.sleep(dotLength)
  d:off()
end)

morse.setDashGenerator(function()
  d:blue()
  blink.sleep(3 * dotLength)
  d:off()
end)

morse.setBlankGenerator(function()
  blink.sleep(dotLength)
end)

morse.setCleanupFunction(function()
  d:off()
end)


morse.send "Programming Lua is loads of fun!"