Bluetooth Module

A Bluetooth module is an electronic communication device that allows a microcontroller such as Arduino or ESP32 to communicate wirelessly with smartphones, computers, and other Bluetooth-enabled devices. It can send and receive data over short distances without using physical wires. Bluetooth modules are commonly used in robotic cars, home automation systems, wireless control projects, and sensor monitoring systems. Popular modules such as HC-05 and HC-06 are often used with Arduino for simple wireless communication.