The Bluetooth Low Energy Beacon Profile Eddystone was introduced in 2015 by Google as an alternative to Apple’s iBeacon. It should be noted that this is not a hardware, but a software protocol that is flashed on beacons. The system, which was released as an open-source program and can be used on various platforms, named after a famous lighthouse in front of the coast of Cornwall, because the signal of the beacon is as simple as that of a lighthouse and works also only in one direction. It can be received by all Bluetooth enabled devices. The Google solution makes it possible to send not just an ID via Beacon but also entire web addresses. It is no longer supported by Google.