BT Shield (Slave)

Overview

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

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

Attribution 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)