The HC-05 Bluetooth Module is a popular wireless communication module designed for connecting microcontrollers and electronic devices with smartphones, computers, and other Bluetooth-enabled devices. It uses UART serial communication, making it easy to interface with Arduino, ESP32, STM32, and other microcontroller boards. The module is widely used for robot control, wireless data transmission, home automation, IoT projects, and DIY electronics applications. It supports Master and Slave modes, providing flexible wireless communication for various projects.

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