Difference between revisions of "BT Shield (Master Slave)"

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===9. Set/Check device class===
 
===9. Set/Check device class===
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{| class="wikitable"
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|-
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| align="center" style="background:#f0f0f0;"|'''Command'''
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| align="center" style="background:#f0f0f0;"|'''Respond'''
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| align="center" style="background:#f0f0f0;"|'''Parameter'''
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|-
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| AT+CLASS=<Param>||OK||Param: Device Class
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|-
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| AT+ CLASS? ||1. +CLASS:<Param> OK  2. FAIL||Param: Device Class
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|}
  
 
===10. Set/Check GIAC (General Inquire Access Code)===
 
===10. Set/Check GIAC (General Inquire Access Code)===

Revision as of 06:51, 22 May 2014

Overview

ITEAD BT SHIELD (MASTER SLAVE).jpg

BT shield V2.2 is a serial port Bluetooth module (with master and slave mode) breakout board, it’s compatible with Arduino and IFlat-32, it can directly plug on Arduino/IFlat-32 board, use UART port for communication with Arduino/IFlat-32 or PC.

Specifications

Microprocessor CSR BC417
PCB size 53.3mm X 47mm X 1.6mm
Indicators PWR,State
Power supply 5V DC
IO 6
Communication Protocol UART/Bluetooth 2.0
RoSH Yes

Electrical Characteristics

Specification Min Type Max Unit
Power Voltage 4.5 5 5.5 VDC
Input Voltage VH (Target Voltage = 3.3V) 3 3.3 3.6 VDC
Input Voltage VH (Target Voltage = 5V) 4.5 5 5.5 V
Input Voltage VL: -0.3 0 0.5 V
Current Consumption - 20 40 mA

Hardware

ITEAD BT SHIELD (MASTER SLAVE)1.jpg

UART Multiplexer (For free UART connection setting)

You can use the jumper to connect the TXD and RXD pins of HC-05 to D0, D1, D4~D7 pin of Arduino.

ITEAD BT SHIELD (MASTER SLAVE)2.jpg

When using the connection as Figure 3, the BT shield connects to the ATMega328 chip on board.

ITEAD BT SHIELD (MASTER SLAVE)3.jpg

When using the connection as Figure 4, the HC-05 connects with the FT232RL chip, and the FT232RL connect to PC by USB. Whit this configuration you can use the serial software on PC to control or configure the HC-05 module.

ITEAD BT SHIELD (MASTER SLAVE)4.jpg

Except the 2 configurations above, you can connect the TXD and RXD to any other pins from D4-D7, and using the software-serial library to control the HC-05 module.

ITEAD BT SHIELD (MASTER SLAVE)5.jpg

Mode Switch

The Mode Set Switch is connected to PIO11, when it is pushed to CMD and powered on, the HC-05 enter command mode, HC-05 module can receive and response AT command in this mode. When it is pushed to DATA and powered on. The HC-05 enters data mode and will not accept AT command.

States LED

When power on and disconnect the port, states LED blinks 1time/2s ; when the module connect and open the serial port, states LED blinks 2times/s.

AT command

1. Test command:

Command Respond Parameter
AT OK -

2. Reset

Command Respond Parameter
AT+RESET OK -

3. Get firmware version

Command Respond Parameter
AT+VERSION? +VERSION:<Param> OK Param : firmware version

Example:

AT+VERSION?\r\n

+VERSION:2.0-20100601

OK

4. Restore default

Command Respond Parameter
AT+ORGL OK -

Default state:

Slave mode, pin code :1234, device name: H-C-2010-06-01 ,Baud 38400bits/s.

5. Get module address

Command Respond Parameter
AT+ADDR? +ADDR:<Param> OK Param: address of Bluetooth module

Bluetooth address: NAP: UAP : LAP

Example:

AT+ADDR?\r\n

+ADDR:1234:56:abcdef

OK

6. Set/Check module name:

Command Respond Parameter
AT+NAME=<Param> OK Param: Bluetooth module name (Default :HC-05)
AT+NAME? +NAME:<Param> OK (/FAIL) Param: Bluetooth module name (Default :HC-05)

Example:

AT+NAME=HC-05\r\n set the module name to HC-05

OK

AT+NAME=ITeadStudio\r\n

OK

AT+NAME?\r\n

+NAME: ITeadStudio

OK

7. Get the Bluetooth device name:

Command Respond Parameter
AT+RNAME?<Param1> 1. +NAME:<Param2> OK 2. FAIL Param1,Param 2 : the address of Bluetooth device

Example: (Device address 00:02:72:od:22:24，name：ITead)

AT+RNAME? 0002，72，od2224\r\n

+RNAME:ITead

OK

8. Set/Check module mode:

Command Respond Parameter
AT+ROLE=<Param> OK Param: 0- Slave 1-Master 2-Slave-Loop
AT+ ROLE? +ROLE:<Param> OK Param: 0- Slave 1-Master 2-Slave-Loop

9. Set/Check device class

Command Respond Parameter
AT+CLASS=<Param> OK Param: Device Class
AT+ CLASS? 1. +CLASS:<Param> OK 2. FAIL Param: Device Class

10. Set/Check GIAC (General Inquire Access Code)

11. Set/Check -- Query access patterns

12. Set/Check PIN code:

13. Set/Check serial parameter:

14. Set/Check connect mode:

15. Set/Check fixed address:

16. Set/Check LED I/O

17. Set PIO output

18. Set/Check – scan parameter

19. Set/Check – SHIFF parameter

20. Set/Check security mode

21. Delete Authenticated Device

22. Delete All Authenticated Device

23. Search Authenticated Device

24. Get Authenticated Device Count

25. Most Recently Used Authenticated Device

26. Get the module working state

27. Initialize the SPP profile lib

28. Inquiry Bluetooth Device

29. Cancel Inquiring Bluetooth Device

30. Equipment Matching

31. Connect Device

32. Disconnect

33. Energy-saving mode

34. Exerts Energy-saving mode

Application Example This is a demo that HC-05 is a master device and communicates to hc-06.

Step 1. Push the mode switch to CMD

Step 2. Power on, module enter command state

Step 3. Using baud rate 38400, send the ―AT+ROLE=1\r\n‖ to module, with ―OK\r\n‖ means setting successes.

Step 4. Send ―AT+CMODE=1\r\n‖, set HC-05 connect to any address, with ―OK\r\n‖ means setting successes.

Download

Useful Links

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