Bluetooth Smart Technology Rajiv Manivannan

What is Bluetooth Smart Technology? ● Bluetooth Smart is a short range wireless communication technology with considerably low power consumption.

Quick History ● In 1994 group of engineers at Ericsson invented a wireless communication technology called “Bluetooth”. ● Bluetooth Smart was originally introduced under the name Wibree by Nokia in 2006. ● In 2010 it is merged into main Bluetooth standard with the adoption of the Bluetooth Core Specification V 4.0

Bluetooth Special Interest Group (SIG) ● In 1998, the original group of Promoter companies - Ericsson, Intel, Nokia, Toshiba and IBM - came together and formed the Bluetooth Special Interest Group (SIG). ● SIG is the governing body that controls the official specifications of the Bluetooth wireless technology.It owns the trademark of word “Bluetooth” ● To become a licensee, a company must become a member of the Bluetooth SIG.

Why Bluetooth Smart ? ● The Gadgets using Classic Bluetooth Technology are tough to pair and consume more battery power. ● To overcome the limitation they introduced the new specification with improved features in version 4.0. so called “Bluetooth Smart”. ● It is designed to be more intelligent about managing the connection between the device and conserving less energy.

● After finishes the data transfer put the connection in sleep.Thus it saves energy and work for more than a year using a coin size battery.

Key Benefits ● Low power consumption. ● Small in size. ● Connectivity to mobile devices. ● Low cost. ● Robust and Efficient. ● Multi vendor interoperability. ● Globally Available & License free.

Bluetooth Smart & Bluetooth Smart Ready ● Bluetooth Smart is not backward compatibility.It will work with Bluetooth 4.0 specification device only. ● Bluetooth Smart Ready supports both Bluetooth Low energy and Classic Bluetooth powered devices.

How it works? ● It works based on manager/peripheral model. ● The device which act as a manager will start scanning for peripheral device. ● To pair with each other peripheral device should be in discoverable mode/Advertizing mode.

● Once, the manager detected the peripheral device it will give a connect request. ● If the connect request gets successful, it will start the service discovery and do the communication (read/write value).

Generic Attribute Profile (GATT) Protocol ● GATT Services: It is the main attribute which has collection of characteristic. ● GATT Service Characteristics: It store useful values for the services, as well as their permissions. ● Characteristic Descriptor: It holds the unit values. ● Client Characteristic Configuration Descriptor: How the characteristic has be configured.

Heart Rate Monitor Application.

Some of the application areas ● Healthcare: Temperature, Blood pressure,and Glucose Monitor devices. ● Sports and Fitness: Steps tracker, sensors attached with bicycle to calculate speed. ● Home Security / Automation: Smart lock, connect the home appliance devices into a hub and automating(Smart home).

Thank you