DFRobot Serial Bluetooth Module

Description DFRobot Serial Bluetooth Module Uses a unique double-board design Beautiful and aim to prevent electrostatic damage to the module Can also be used as a pair which provides a transparent serial data communication Working temperature: -20 - +55 ºC The DFRobot Serial Bluetooth Module uses a unique double-board design, it is beautiful and aim to prevent electrostatic damage to the module. It is designed to have 2 DC power input, wide voltage supply (3.5V - 8V) and 3.3V power supply, suitable for various applications. It has build-in on-board antenna which provides high quality signals. It has been tested and compatible with most Bluetooth adapter in the market (Bluetooth dongle, including laptops and mobile phones). This module can also be used as a pair which provides a transparent serial data communication. View more Links PDF File• DFRobot Serial Bluetooth Module - Datasheet Specifications Bluetooth protocol: Bluetooth Specification v2.0 + EDR USB Protocol: USB v1.1/2.0 Operating frequency: 2.4 - 2.48GHz unlicensed ISM band Modulation: GFSK (Gaussian Frequency Shift Keying) Transmit Power: = 4dBm, Class 2 Transmission distance: 20 - 30m in free space Sensitivity: =-84dBm at 0.1 BER Transfer rate: Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps/1Mbps Safety features: Authentication and encryption Support profiles: Bluetooth serial port Serial port baud rate: 4800 - 1382400 / N / 8 / 1 default: 9600 LED indicator: STATE state: Search state (high 104ms 342ms 2.9Hz cycle flicker) connection status (high 104ms cycle 2s 0.5Hz flashing), LINK Status: Always after match Input Voltage: +3.5 V - +8 V DC and 3.3V DC/50mA Module Size: 40 x 20 x 13mm