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()

Your wishes have been answered, @greyshi!

Wow that was quick! Going to give it a try.

LG's latest C2 update requires SSL enabled. LGWebOSRemote dev has updated the code to support ssl, but now the Lua code needs to reflect "lgtv path command ssl" to pass commands to the TV.

I tried appending ssl to the commands in Lua and still not working for me... I will hopefully have time to play with it more later today.

Wondering if I could get some help. I have installed Hmmerspoon & brew. I am reviewing the instructions to install LGWebOS (https://github.com/klattimer/LGWebOSRemote) but it says I have to have several other things installed (Requires wakeonlan, websocket for python (python3-websocket for python3), and getmac. python-pip (python3-pip for python3) and git are required for the installation process.). Is this correct? I'm not sure how to install all of these things on my Mac

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

hope that helps!

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

hope that helps!

Appreciate that, I'm not sure if I had the latest repo. But how do I install lgtvcontrol from this?

Do I just put this in terminal after installing hammer spoon and brew?

mkdir -p ~/opt
python -m venv ~/opt/lgtv
cd ~/opt/lgtv
source bin/activate
pip install git+https://github.com/klattimer/LGWebOSRemote

When I do that nothing really happens. I get a zsh: command not found

@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.