Wake TV when MacOS wakes from sleep (Hammerspoon)

waketv.lua

-- -------------------------------------------------------------------
-- THIS SCRIPT IS NOW DEPRECATED IN FAVOR OF A MORE ROBUST SOLUTION --
-- Please refer to https://github.com/cmer/lg-tv-control-macos/
-- -------------------------------------------------------------------

local tv_identifier = "LG TV"
local mac_address = "aa:bb:cc:dd:ee:ff"
local tv_found = (hs.screen.find(tv_identifier) ~= nil)
local debug = false  -- Set to true to enable debug messages

if debug then
  print("List of all screens: " .. hs.inspect(hs.screen.allScreens()))
  if tv_found then print("TV with identifier '"..tv_identifier.."' was detected.") end
end

watcher = hs.caffeinate.watcher.new(function(eventType)
  if (eventType == hs.caffeinate.watcher.screensDidWake or
      eventType == hs.caffeinate.watcher.systemDidWake or
      eventType == hs.caffeinate.watcher.screensDidUnlock) and tv_found then

    if debug then print("TV was turned on.") end
    hs.execute("/opt/homebrew/bin/wakeonlan "..mac_address)
  end
end)
watcher:start()

@jmart987 try it one line at a time instead of copying and pasting the whole thing.

@jmart987 have you seen the latest repo here? https://github.com/cmer/lg-tv-control-macos

hope that helps!

Works great! If you want to change inputs by using keyboard events/taps you could also add this in the .lua file ( I have this line at the top ) :

local control_inputs = true -- Switch inputs by events from keyboard

And then add this :

event = hs.eventtap.new({hs.eventtap.event.types.keyDown, hs.eventtap.event.types.systemDefined}, function(event)
    local type = event:getType()
    if type == hs.eventtap.event.types.keyDown then
      local keyCode = hs.keycodes.map[event:getKeyCode()]
        if keyCode == "f1" then
          exec_command("setInput HDMI_1")
        elseif keyCode == "f2" then
          exec_command("setInput HDMI_2")
        elseif keyCode == "f3" then
          exec_command("setInput HDMI_3")
        elseif keyCode == "f4" then
          exec_command("setInput HDMI_4")
        end
      end
end)

if control_inputs then
  event:start()
end

If you want other keys and not f1,2,3,4, just replace the strings with desired keys.