Beacons

Beacons are small, usually battery powered, Bluetooth LE devices, that repeatedly send out advertising. They are used for triggering in apps, asset tracking and IoT sensing. There are four main types of beacon, iBeacon, Eddystone, tracker and sensor that mainly differ in their advertising formats and on-board sensors.

What are Beacons?
Beaconstac - What is a beacon?
kontakt - What is a beacon?
Bluetooth Beacons: A Beginners Guide
The Rise of Beacon Technology
Benefits of Beacons
Ways to Use Beacons
Everything You Need to Know about Bluetooth Beacons and How they Work
Bluetooth Sensor Tags
Bluetooth Beacon Security
Devices That Can See Beacons