Eddystone is a lighthouse at the coast of Cornwall. Eddystone™ is an open beacon format from Google that supports Android and iOS devices. Eddystone provides different protocols: Eddystone-UID, Eddystone-EID, Eddystone-URL, and Eddystone-TLM.
Eddystone-URL sends a website that can be opened by any smartphone.
Eddystone-UID is comparable to the iBeacon protocol and also sends a 16-byte Universally Unique Identifier (UUID) in adjustable frequency and strength.
Eddystone-EID means Ephemeral Identifiers (EID). These identifiers change at regular intervals and can only be read by authorized devices.
Eddystone-TLM is the data on the status of the beacon, the so-called telemetry data. This data is useful, for example, to monitor the status of the Beacon fleet at any time, or to start special services.
Estimote, Inc. is a manufacturer of visually appealing beacons based in the USA and Poland.