โมดูล Bluetooth HC-05 สำหรับ Arduino

โมดูล Bluetooth HC-05 สำหรับ  Arduino

คุณสมบัติเฉพาะ

A module, parameter:

1.PCBSize: 3Seven3mm (length) *1Five5mm (W)

2. weight: 3.5g

3. input voltage: 3.6V--6V, no more than7V

4. power anti reverse, reverse connection module does not work

5.The 6 foot: EN/VCC/GND/RXD/TXD/STATE (Bluetooth status pin is not connected, the output low, with high level output)

6. in connection with the status indicator, LED flash indicates no Bluetooth connection; LED said into the slow flash AT command mode

7.The on-board 3.3V regulator chip, the input voltage of 3.6V-6V DC current; unpaired, about 30mA (flash, because LED lamp current is a state of change); after successful pairing, about current10mA

8. interface level 3.3V, can be directly connected to a variety of microcontroller (Arduino/51/AVR/PIC/ARM/MSP430), 5V chip can also be directly connected. Directly connected to the serial interface, not through the MAX232 chip!

9. Open the effective transmission distance of 10 meters, more than 10 meters is possible, but not connected to do quality assurance

10.The pairing is successful, can be used as a full duplex serial port. No need to know any Bluetooth protocol, but only supports 8 data bits, 1 stop bit, no parity communication format. This is the most commonly used communication format, other format is not supported!

11. Press the button again to the Bluetooth module can enter AT mode power, parameter setting and query information

12. Through the AT command to switch the master and slave mode

13. The baud rate is 9600, the default module default pairing password is 1234, the default name is HC-05

14. With a transparent protective heat shrinkable tube

Two, connection method:

VCC:The positive power supply

GND:Negative electrode

RXD:The receiving end, the Bluetooth module receives the data sent from other devices; the sender normally connected to other devicesTXD

TXD: transmitter, Bluetooth module to send data to other devices; the receiving end normally with other equipmentRXD

EN: enable end, need to enter AT mode with 3.3V