Wireless technology(bluetooth)

DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION

ENGINEERING

Name :Rohan Mundhey

Roll no :158

Section :B(6th Semester)

Wireless Technology

Bluetooth Low Energy -Powering IOT

802.15.1

History

Harald blátǫnn

What is Bluetooth ?

Bluetooth is a standardized protocol for sending and receiving data via a 2.4GHz wireless link

How Bluetooth Works ?

Master Node

Slave Node

Bluetooth Piconet Topology

Bluetooth Addressing & Names

Power Requirement

Class Number Max Power Output Max Range

Class 1 100 mW 100 m

Class 2 2.5 mW 10 m

Class 3 1 mW 10 cm

Bluetooth Profiles

• Serial Port Profile (SPP)

• Human Interface Device (HID)

• Advanced Audio Distribution Profile (A2DP)

• A/V Remote Control Profile (AVRCP)

Serial Port Profile (SPP)

Human Interface Device (HID)

Advanced Audio Distribution Profile

(A2DP)

A/V Remote Control Profile (AVRCP)

Notable Bluetooth Versions

• Bluetooth v1.2

• Bluetooth v2.1 + EDR

• Bluetooth v3.0 + HS

• Bluetooth v4.0

– Bluetooth Classic

– Bluetooth High Speed

– Bluetooth Low Energy

Wireless Comparison NAME Bluetooth

Classic

Bluetooth Low

Energy ( BLE )

ZIG-BEE Wi-Fi

IEEE Standard 802.15.1 802.15.1 802.15.4 802.11(a,b,g,n)

Frequency (GHz) 2.4 2.4 0.8,0.9,2.4 2.4 to 5

Max Bit Rate

(Mbps)

1 to 3 1 0.25 11(b),54(g),600(n)

Max Range(m) 10-100 50 10-100 100-250

Power

Consumption

Medium Very Low Very Low High

Battery Life Days Months to Years Months to Years Hours

Network Size 7 Undefined 64,000+ 255

References

• Bluetooth Basics – Sparkfun.com