It features a UART interface, making it easy to add wireless serial connectivity to your device with this Bluetooth module. A wide range of example projects and compatibility with Arduino, Raspberry Pi, and other boards are readily available to simplify integration. Once paired with another Bluetooth device, it operates like a normal UART link to exchange data, providing seamless serial communication over Bluetooth. Slave operation: Bluetooth in slave mode cannot search for other Bluetooth devices; it waits for a master to initiate the connection and then accepts it. Recommended use scenarios Wireless sensor data transmission: connect the module to a microcontroller or sensor array to transmit data wirelessly to a PC, smartphone, or gateway via Bluetooth, replacing a wired UART link. Remote device control: use the module to enable UARTbased control of robots or actuators by a master device that initiates and maintains the Bluetooth connection. Bluetooth UART bridge: a wired serial connection between a microcontroller and a host system with a Bluetooth link for easier placement and data monitoring without physical cables.