Introduction
Bluetooth is a radio technology making transmission of signals over short distances between cell phones, computers and other devices, like household appliances, without the use of wires. The name Bluetooth was born from the 10th century king of Denmark, King Harold Bluetooth who engaged in diplomacy which led warring parties to negotiate with each other. The inventors of the Bluetooth technology thought this a fitting name for their technology which allowed different devices to talk to each other.
Benefit
Bluetooth technology is based on communications central to other devices. Fundamentally, Bluetooth operates within the Industrial, Scientific and Medical (ISM) band at 2.4 GHz. It is a short-range wireless communication standard defined as cable replacement for a Personal Area Network (PAN).
A cable replacement standard has been defined because cables limit mobility of the consumer; they are hard to carry out, are easily lost or broken. To counteract these limitations Bluetooth is designed to be light and portable. It includes standards and protocols to make it mobile, robust, reliable and not limited to other Bluetooth devices.
Classes
Bluetooth is a radio standard primarily designed for low power consumption, with a short range (power class dependent: 1meter, 10 meters, 100 meters) and with a low-cost transceiver microchip in each device. Bluetooth lets these devices talk to each other when they come in range, even if they are not in the same room, as long as they are within up to 100 meters of each other, dependent on the power class of the product.
Costs
The costs of Bluetooth may from $5 to $20. It depends on its material, distance range, and feature. For example, the Class 1 Bluetooth chip got longer di ...