BLUETOOTH

 Bluetooth: Bluetooth is a wireless technology that allows devices to communicate with each other over short distances. It was developed in the late 1990s as a way for mobile phones and other devices to exchange data without the need for physical cables.Bluetooth operates in the 2.4 GHz frequency band and uses a protocol known as frequency-hopping spread spectrum (FHSS) to transmit data. This allows multiple devices to communicate with each other in the same area without interfering with each other.Bluetooth devices are classified into three different categories, based on their power consumption and range: Class 1 devices have a range of up to 100 meters and are typically used in industrial and commercial applications; Class 2 devices have a range of up to 10 meters and are commonly used in consumer electronics; and Class 3 devices have a range of up to 1 meter and are typically used in personal area networks.Bluetooth has become a ubiquitous technology and is used in a wide range of devices, including smartphones, laptops, headphones, smart speakers, and many other consumer electronics. It is used for a variety of applications, including file transfer, audio streaming, and wireless networking.One of the key advantages of Bluetooth is its low power consumption, which makes it ideal for use in portable devices. It also allows for easy device pairing, enabling users to connect multiple devices with a single tap or click.In recent years, Bluetooth has also evolved to include a number of advanced features, such as Bluetooth Low Energy (BLE), which is designed to be even more power-efficient and is commonly used in IoT devices.