BT Shield (Slave)

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Overview

BT shield (salve).jpg

BT Shield V2.1 is a Serial port Bluetooth module (Slave) breakout board, and it’s compatible with Arduino and IFlat-32, it can directly plug in with Arduino/IFlat-32 board, use the UART port for communicating to Arduino/IFlat-32 or FT232.

Specifications

Microprocessor CSR BC417
PCB size 53.3mm X 47mm X 1.6mm
Indicators PWR,State
Power supply 5V DC
IO 3
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

BT shield (salve)1.jpg

Pad Name Type Description
RX/TX I/O UART communication Port (Depend on switcher 4)
TX/RX I/O UART communication Port (Depend on switcher 4)
State O State Direction
Switcher Name Description
4 UART Communication Switch Connect to broad or FT232
5 Communication Voltage Switch Set the interface voltage
LED Name Description
6 PWR When power on, the PWR LED light.
7 State \"When the module in standby mode, the State LED will alternating light off. When the serial port open, the State LED light.\"

AT command

Default:

Slave, 9600 baud rate, N, 8, 1. Pincode 1234

AT command:

1. Communications Test:

Sent : AT

receive : OK

2. Change baud rate:

Sent : AT+BAUD1

receive : OK1200

Sent : AT+BAUD2

receive : OK2400

1---------1200

2---------2400

3---------4800

4---------9600

5---------19200

6---------38400

7---------57600

8---------115200

Baud rate setting can be save even power down.

3. Change Bluetooth device name:

Sent : AT+NAMEdevicename

receive : OKname

(devicename is the name you want the device to be , and it will be searched with this name)

Name setting can be save even power down.

4. Change Pincode:

Sent : AT+PINxxxx

receive : OKsetpin

(xxxx is the pin code you set)

Pin code can be save even power down.

License

Colors Shield1.jpgAttribution Non-Commercial Share Alike

cc by-nc-sa

Download

Datasheet for BT Shield (Slave)

Schematic for BT Shield (Slave)

Demo Code for BT Shield (Slave)

Useful Links