SleepWatcher setup for Hue lights to turn off and on when my screen does. SleepWatcher lets you run arbitrary commands on wake/sleep/displaydim/displayundim. It can be found here: http://www.bernhard-baehr.de/ - get an API key for your Hue by following these steps: http://developers.meethue.com/gettingstarted.html

.displaysleep

#!/bin/bash
APIKEY="newdeveloper"

function turnOff {
  curl -X PUT -d"{\"on\": false }"  http://192.168.2.142/api/$APIKEY/lights/$1/state
}

turnOff 1
turnOff 3

.displaywake

#!/bin/bash
APIKEY="newdeveloper"

function turnOn {
  curl -X PUT -d"{\"on\": true }"  http://192.168.2.142/api/$APIKEY/lights/$1/state
}

turnOn 1
turnOn 3

de.bernhard-baehr.sleepwatcher-20compatibility.plist

#this goes in: /Library/LaunchDaemons/de.bernhard-baehr.sleepwatcher-20compatibility.plist 
#start daemon with: launchctl load /Library/LaunchDaemons/de.bernhard-baehr.sleepwatcher-20compatibility.plist 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
	<string>de.bernhard-baehr.sleepwatcher</string>
	<key>ProgramArguments</key>
	<array>
		<string>/usr/local/sbin/sleepwatcher</string>
		<string>-V</string>
		<string>-s /etc/rc.sleep</string>
		<string>-w /etc/rc.wakeup</string>
		<string>-S /Users/dkordik/.displaysleep</string>
		<string>-W /Users/dkordik/.displaywake</string>
	</array>
	<key>RunAtLoad</key>
	<true/>
	<key>KeepAlive</key>
	<true/>
</dict>
</plist>