What is LANnouncer (formerly LANdroid)

LANnouncer is a device driver for the Samsung SmartThings home automation hub, bringing audio alerts to the system through any connected Android device.

LANnouncer supports:

It does so over:

This is supported in the SmartThings community thread "Android as a Speech/Alarm Device released!", although this beta thread also may be helpful.

What's New

Version 2.03.12 brings:

The addition of Premium Users is necessary because of the cost not just of working on LANNouncer but of running the necessary server for IFTTT support.  Premium Support doesn't cost much, and gets you:

Note that no features have been removed or disabled with the addition of Premium, and that new features (WAN and Audio Files) have been added even for free users.  Only the quantity/speed is different.


There are several pages linked from here:


Example IP Addresses

I.P. addresses here are examples, and will generally be of the form or 192.168.1.xx. You should replace the last segment with the correct I.P. address.

DONE Marker

When using the SmartThings LANdroid device handler, the DONE marker is appended automatically for you.  But when using other mechanisms, such as SMS from outside of SmartThings or curl commands, you may find reliability improved by tacking it on manually.

The DONE Marker is @DONE@.  It should be appended with a query separator - e.g.

	curl ""

Speak Envelope

LANnouncer understands socket commands (and SMS commands) that SmartThings natively doesn't know how to send.  And in many cases, SmartThings doesn't have the flexibility to send arbitrary commands; it expects to support only specific devices in specific contexts.  This can be limiting.

To get around this, you can use the SPEAK ENVELOPE.  For example, if an alarm isn't supported but voice is, you could "say" SPEAK=@|ALARM=CHIME to get the chime.

Multiple Commands

When firing several actions against the same LANnouncer at the same time, it's better to issue them as one with a SPEAK Envelope than as individual commands.  This is because SmartThings does not handle sockets well, so the best approach is to send few of them.

Commands can be strung together with &.  This can be done via the Speak Envelope or directly if using sockets. 

For example, to send a chime and collect a sequence of photos, you can send the commands ?CHIME=ALARM&RETRIEVESEQ=MYCAMERA. 

This even works with speech; you could send, e.g.,

curl "|ALARM=CHIME&SPEAK=Hello daddy&@DONE@"


Use curl.  Heavily.  To test image retrieval, ensure the command should return images (rather than just saving them), and redirect the curl results to a file.

Installing It

Read through this page to understand what pieces are what, and then start with the next section, Getting It, to get all the code

The Installation Instructions can walk you through all the configuration.

Getting It

LANnouncer comes in three parts:

Taking Advantage Of LANnouncer

LANNouncer supports quite a few commands, many of which take parameters. These can be sent via text-to-speech tools in Home Automation systems, via REST calls, SMS messages, even curl scripts.

This section overviews the commands.

Additional Commands

Not every

String Purpose
@#ALARM=CHIME Sound a chime, like a store entry
(Same as using the Notification.beep device capability.)
@#ALARM=DOORBELL Sound a doorbell
@#ALARM=ALARM Sound a alarm, like a missile warning
@#ALARM=FILE1 Plays the first of the configured audio files. Premium users have up to FILE5. Of course it must be correctly configured on the device you are sending the command to.
@#ALARM=STOP Abort the ALARM sound (chime, siren, a file playing) immediately.
@#ALARM=SIREN Sound an old-style police siren
(Same as using the Alarm.Siren device capability.)
@#VERSION=ON Speak the version
@#FLASH=STROBE Strobes the flash for about 10 seconds
(Same as using the Alarm.Strobe capability.)
@#FLASH=LONG Turns the flash on for about 10 seconds
@#PHOTO=BACK Takes a photo from the device back camera.
(FRONT is an unimplemented option currently.)
@#PHOTO=BACK&STSHRINK=TRUE You wouldn't use this from BigTalker, but this will return the image in a SmartThings-friendly size.
e.g. curl "192.168.1.xx:1035/?PHOTO=BACK&STSHRINK=TRUE&@DONE@" > test3.jpg
would retrieve a small copy to test3.jpg
@#PHOTO=BACK&WAIT=TRUE Same as above, but for a full-sized photo
@#RETRIEVE=camera_name&WAIT=TRUE RETRIEVE grabs an image from the configured camera (see Installation.)  The WAIT and STSHRINK commands will cause it to be returned; otherwise it merely is copied to the Android device media folder and, if configured, to the Dropbox folder.
@#VIDEO=seconds_to_record Takes video with the Android camera, putting it in the media folder and optionally to Dropbox.
@#RETRIEVESEQ=camera_name Retrieves a sequence of photos from the remote camera.  This is set for 4 photos, at 3+ seconds apart, though is generally constrained by the camera login speed.
SPEAK=@| This is the SPEAK ENVELOPE, that allows arbitrary strings (commands) to be sent via text-to-speech.

Sending Commands

The LANnouncer service is not limited to contacts from the SmartThings hub. Commands can be sent directly via, e.g. curl: If you have enabled GCM or WAN functionality, you can use the remote server also as in the IFTTT section. The syntax is a bit difference, as you must be authenticated.  So a similar command might look like:

The SPEAK extensions can also be sent via curl, however be aware that in some environments, curl cannot send "#", so "|" is used for LANdroid instead, as in...


LANdroid and LANnouncer were written by NWTony/KeyBounce in response to his frustration at the lack of audio outputs from SmartThings.