How Bluetooth Modules Enable Bluetooth Devices To Communicate Read more

Bluetooth technology operates in the unlicensed industrial, scientific and medical (ISM) band at 2.4 to 2.485 GHz, using a spread spectrum, frequency hopping, fullduplex signal at a nominal rate of 1600 hops/sec. Bluetooth technology is able to work via low radio frequency that is available around the world.

Bluetooth technology was appropriately named after a rather despotic Scandinavian king of the late Viking Age, because he was known for unifying tribes of Denmark and Norway that were previously at odds with each other.
Bluetooth technology is really a type of electronic protocol - an industry standard that allows different electronic devices such as personal computers, printers, cell phones, and a wide range of digital devices to connect to each other and exchange information with the other Bluetooth enabled devices nearby, wirelessly.

Wireless has been considered by many as an unreliable replacement for traditional fixed cables in process environments. Many wireless networks do not offer the security, robustness and reliability needed for replacing hard-wired telemetry systems. Bluetooth technology throughout the years has gained worldwide popularity because of the outstanding satisfaction that is provides. It is estimated that a few million Bluetooth modules are sold globally per week, and the number is increasing each year.

Bluetooth Modules are a standard developed by a group of electronics manufacturers that allows any sort of electronic units, including computers, cell phones, keyboards, and headphones, to make its own connections, without wires, cables or any direct action from a user. Bluetooth modules are simpler, less expensive, and the data-rate is better matched to the AVR's capabilities.

Bluetooth devices come in one of three varieties by signal output: Class 1, 2, or 3. Class 3 devices (1 meter, 1mW) were originally the most common, intended for low-power earpiece-to-phone communication. Class 2 (10 meters, 2.5 mW) became more common, and I believe now predominates. This allows communication within a room and sometimes beyond. Class 1 (100 meters, 100 mW) is rarely found in peripherals, although it's used in computers. The Callpod Dragon V2 headset ($99) is a rare peripheral exception, but the size and price have something to do with its ability to push out that much signal.

Bluetooth relay devices can be used for networking different Bluetooth devices. Such relay devices typically have many Bluetooth modules, each of which can communicate with a number of different Bluetooth devices and/or adjacent relay devices. In order to avoid transmitting by one Bluetooth module of a relay device whilst its another Bluetooth module receives, all the Bluetooth modules of the relay device are set as masters and one of them is given control over the others so as to enforce all the Bluetooth modules to time their receptions so that no simultaneous transmissions by another Bluetooth modules occur.

Technological advancements are known to make what was new today appear, obsolete tomorrow. Developments in the field of Information Technology are today happening so fast that computers come into the market and are soon rendered a piece of junk as well.