You need several things to get this to work and you'll need to access your "developer" account or create one here: https://graph.api.smartthings.com/
a new Device type, you'll need to use a 'developer' account to create this device type. You Copy/Paste this into "Create New Device" from code under the My Device Types tab:
an android device running Lollipop (Android OS 5). Create a new device from code under My Devices tab and apply the new device type you created earlier from a pop up window. It should be near the bottom called "LANdroid Alerter".
LANnouncer software running on your android device.
BigTalker smartapp running to create announcements, you'll need a 'developer' account to create this custom smartapp. You'll also COPY/PASTE this code into My Smart Apps tab.
Optionally another smartapp to send SMS to your Android device.
As mentioned earlier, more information can be found here:
If you need to know how to make device types and smartapps, I'll dig up the links for those.