What is Bluetooth 4.0 - 4.2 - 5.0 full detail

👉Bluetooth 4.0 - 4.2 - 5.0 full detail.

👉Range

 2.402 Ghz- 2.480 GHZ + Gard band 2.402 Ghz-2.4- 2.483Ghz.

👉ISM Band :- 

Industrial, Scientific and Medical (ISM) radio bands are radio bands that are internationally reserved for the use of radio frequency (RF) energy for industrial, scientific and medical purposes in addition to communications.

In 1sec change the L600 frequency Bluetooth maximum 8 devices connected to Bluetooth Loose 1 Master 2 slave on 79 different bands.

👉Power use - 0.5 mili watt

👉History Of Bluetooth:

Bluetooth wireless technology was named after the Danish Viking and King, Harald Blatand; His last name means "Bluetooth" in English. He is credited with uniting Denmark and Norway, much as Bluetooth wireless technology is credited with uniting two disparate devices.

👉Definition of Bluetooth:

A Bluetooth technology is a high-speed low-power wireless technology link designed to connect phones or other portable devices together. It is a specification (IEEE 802.15.1) for the use of low power radio communications for connecting phones, computers, and other network devices over short distances without wires. Bluetooth signals are typically transmitted with short distances of up to 30 feet (10 m).

This is achieved by low-cost transceivers embedded in devices. It supports over a frequency band of 2.45GHz and can support up to 721KBps with three voice channels. This frequency band is set aside by international agreements for the use of industrial, scientific and medical equipment (ISM). 1.0 is .rd-compatible with devices. Bluetooth can connect to "eight devices" simultaneously and each device provides a unique 48 bit address. Connections are being made point to point or multipoint with the IEEE 802 standard.

With Bluetooth 5.0, devices can use data transfer speeds of up to 2 Mbps, which is double that of Bluetooth 4.2. Devices can also communicate at distances up to 800 feet (or 240 meters), which is four times the 200 feet (or 60 meters) allowed for Bluetooth 4.2. However, walls and other obstacles will weaken the signal.