Beacon Toy

Featured at Google I/O 2016! Create Bluetooth Low Energy beacons using your device.

A beacon is a self-repeating, low-power, Bluetooth advertisement of small data (31 bytes or less), that can reach devices 50 feet or more (or only immediately close if desired). Some of them can be detected without needing an app; see http://physical-web.org for details.

You can only broadcast beacons on Android 5.0+ devices that support BLE peripheral mode. Many pre-2015 devices are incompatible, while most newer ones are, Check out a list of known devices at https://goo.gl/p3w5Qj

Supported beacon formats to advertise:
Eddystone frame types: URL, UID, and EID (fully supported and auto-refreshing)
iBeacon

Features
Host Eddystone-GATT service configuration - register production-ready Ephemeral ID or UID beacons with Google's Beacon Tools app, on another device.
Run multiple beacons - device limited: up to 4 on Nexus 6, up to 8 on Galaxy S7, etc.
Built-in goo.gl shortener
Ephemeral URLs via https://uriio.com - create un-spoofable, rotating URLs; change the destination target without touching the beacon!
Background service that resumes on device boot
View and clone nearby BLE packets

Use cases
Broadcast any URL you want: your site, your store's / cafeteria webpage (or why not, even the menu?), your personal website, your social network profiles, a funny YouTube video, or anything else you can think of and want the people nearby to come in contact with.
Share nearby a link relevant to the place your device is located at, which is yourself, or maybe a kiosk or anything else.
For advanced usage, play around with the Proximity Beacon API and attach any kind of data to your beacons.