What is Bluetooth LE ? | Applications of Bluetooth LE.

BLUETOOTH LE OR LOW ENERGY

What is Bluetooth LE?

  It is the new Bluetooth 4.0 system that has been incorporated into smartphones from 2013. It emits a 2.4Ghz signal with a range of up to 100 meters, with the great advantage that it consumes very little energy and allows the signal to be emitted for months and months. Even years without recharging the battery. LE stands for Low Energy Consumption in English.



  Like any bluetooth system, it is a wireless system that serves to connect several electronic devices and exchange information between them via bluetooth, but this time of low consumption. It allows to emit for months without changing the battery of the transmitter or receiver. Most use normal batteries, not even batteries.

Bluetooth LE improvements

 Bluetooth with this new technology has not only improved consumption, but has also improved the transfer radius, now they can reach connections even up to 100 meters, and also the transfer speed that will now reach 1Mbps (mega bit per second) .

 The degree of security in transmissions has also improved with a new encryption called AES 128 with CCM.

 In addition to all this, billions of devices with bluetooth LE or 4.0 can be connected simultaneously.

 This new technology will probably eliminate the current NFC that was being used for short distance connections and low power consumption.

 This new bluetooth is not compatible with the old ones, only the most recent smartphone that has been released since the end of 2013 or the beginning of 2014.

 An informative beacon costs around 55 Dollar and its use in stores will be enormous due to its low cost.

 All major operating systems support and are working on this new technology.

 The low costs of technology and offering a flexible development architecture to create applications for mobile phones (App) to use everyday objects such as heart rate monitors, toothbrushes, running shoes connected to a bracelet that It gives us all the cardiac data, remote house door opening, home automation, that is, the internet of things, in addition to communication for proximity advertising makes this system the new revolution in the transmission of data between devices.

Applications of Bluetooth LE

  This type of system will change the way you interact with our phone. Stores and large stores are already using it for so-called proximity advertising.

  It is very simple. With an Information beacon that emits a Bluetooth LE signal, you can connect to a Smartphone that passes near the beacon and connect the beacon to the phone by sending messages from the beacon to the phone or vice versa.

  Bluetooth LE is also the key piece of the Internet of Things, everyday objects such as household appliances, permanently connected to the internet or directly to each other, because this new technology consumes so little that we do not have to recharge the LE bluetooth transmitter or receiver in many months.

  With this new technology we can make payments through a system called Beacon.