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Module Blootooth v2.1+ EDR, class 2, communicates via serial interface UART (RX, TX pins), supports the AT commands. The maximum range is 30 meters. The successor of the module HC-06 works with voltages like 3.3 V or 5 V so it can be connected directly to the Arduino modules.
- Supply voltage: 3 V to 6 V connected to the VCC pin
- Communicative leads work with a voltage of 3.3 V or 5 V
- Current consumption: approx. 50 mA
- Class 2 - power of transmitter max. + 10 dBm
- Range: up to 30 m
- The password for pairing: 1234
- Standard: Bluetooth 2.1 + EDR
- The SPP profile, configurable using AT commands
- Software version: 3.4.512.1127
- Communication: UART (RX, TX)
- Small dimensions: 37 x 16 mm
The device has a built-in converter of current 3.3 V - 5 V so it can be connected directly to the Arduino modules.
In addition to module XM-15B, on the Board are:
- status led connected to the status leads PIO1 (24) indicating a proper connection
- converter of logic levels working with voltages from 3 V to 5 V
- the capacitors that filter the supply voltage,
- soldered goldpin connectors to attach the module to the breadboard or to connect using wires.
Leads are signed on the reverse of the board that facilitates the connection.
To start the module, you must connect the supply voltage to the pin marked VCC and mass GND. The module is detected via the computer as unknown system or XM-15B, to pair both devices, you must enter the password: 1234. The system will display a virtual COM port and it can, using any terminal, transmit data. The board has leads of serial interface UART - pins TX and RX that you can connect, for example, with Arduino or the computer via the FTDI adapter.
Communication can be checked by pairing the module with the computer and connecting plate using the FTDI converter. In two terminal's windows, you should select appropriate communication ports and also specify the speed of transmission 9600 bps. If the configuration is correct, the text, sent from one terminal will appear on the second terminal.