Function: Wireless Bluetooth 2.0+EDR serial communication module for data transmission.

Operating Voltage: 3.3V to 5V DC – widely compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers.

Communication Interface: UART serial interface for easy connection with microcontrollers.

Bluetooth Version: Bluetooth 2.0 + Enhanced Data Rate (EDR) for faster data transfer.

Range: Up to 10 meters in open space.

Modes: Can operate in master or slave mode, configurable via AT commands.

Data Rate: Up to 3 Mbps (over-the-air).

Pairing: Supports secure pairing with PIN code (default PIN: 1234 or 0000).

Indicator LED: Onboard LED to show Bluetooth status (pairing, connected, standby).