What to do with Bluetooth Low Energy? Which applications can we cover? Several short articles shall give you an idea for useful applications on BLE. The first article is related to my lost key-fob.
BLE beacon at key-fob (1)
Estimated twenty-five years ago I lost my keys at the ruins of Corinth in Greece. I had luck. Somebody found the keys of my car and gave it to the kiosk in front of he ruins.
Today this problem can be solved by BLE. Bluetooth Low Energy offers a profile called Proximity. As soon as something like the keys will be out of range, the smart phone will start to ring. This means that if the keys will fall to the ground and you will walk further, your smart phone will start an alarm. You will remember where you walked before and can have a look back. On top BLE offers a profile called Find Me. With Find Me you can trigger an alarm at the buzzer at the key fob.
A further option is the iBeacon protocol. With the iBeacon protocol you get an estimated distance to something. With the right app on your smart phone and an iBeacon at your key fob you come to same result. The iBeacon protocol is analysing the RSSI level transmitted by the beacon. This means any other protocol with RSSI level can do the job as well.
If this article gained your interest and if you plan to develop an on application on iOS or Android, then then to not hesitate to drop an email to harald.naumann (at) gsm-modem.de and to ask for an Bluetooth Low Energy beacon kit.
More Bluetooth Low Energy applications here