The DF-BluetoothV3 Bluetooth module uses a unique double-board design to help prevent electrostatic damage to the module. It is designed to have two DC power inputs: a wide voltage supply (3.5 to 8V) and a 3.3V power supply, making it suitable for a wide variety of applications.
STATE LINK is indicated by a bright LED which is used to display module status and connection status (STATE state: Search state (high 104ms 342ms 2.9Hz cycle flicker) connection status (high 104ms period 2s 0.5Hz flashing), LINK state: paired.) It has a built-in on-board antenna which provides high quality signals.
A DIP switch is used to set the module status, LED Off to turn off the LINK light to enter power-saving mode, AT Mode allows the module to enter AT command mode. AT commands can modify the baud rate and the master and slave mode.
The module has been tested for compatibility with most Bluetooth adapters on the market (Bluetooth dongle, including laptops and mobile phones). The module has been tested with, and is compatible with Android Phones. Two modules can be used as a 'pair' to produce a transparent serial data communication link.
- Bluetooth chip: CSR BC417143
- Bluetooth protocol: Bluetooth Specification v2.0 + EDR
- USB Protocol: USB v1.1/2.0
- Operating frequency: 2.4 to 2.48GHz unlicensed ISM band
- Modulation: GFSK (Gaussian Frequency Shift Keying)
- Transmit Power: ≤ 4dBm, Class 2
- Transmission distance: 20 to 30m in free space
- Sensitivity: ≤-84dBm at 0.1% BER
- Transfer rate: Asynchronous: 2.1Mbps (max.) / 160kbps; synchronous: 1Mbps/1Mbps
- Safety features: authentication and encryption
- Support profiles: Bluetooth serial port
- Serial port baud rate: 4800 to 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 to 8V DC and 3.3V DC/50mA
- Working temperature: -20°C to +55°C
- Module size: 40 x 20 x 13mm
- DFRobot type TEL0026
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