If you own a modern car or a smartphone, chances are you’ve used Bluetooth at least once in your life. Bluetooth is everywhere: in speakers, wireless headphones, cars, wearables, medical devices, and even shoes!
There are two kinds of Bluetooth devices: one is referred to as Bluetooth Classic (used in wireless speakers, car infotainment systems, and headsets), the other is Bluetooth Low Energy (BLE).
BLE is more prominent in applications where power consumption is crucial (such as battery powered devices) and where small amounts of data are transferred infrequently (such as in sensor applications).