TDK blu2i User Manual

8 

 
This section describes how to quickly make your first Bluetooth 
connection based on the following combinations of Bluetooth hardware:- 
 
1. Two 

blu

2i

 Modules. 

2. One 

blu

2i

 Module and a Bluetooth Enabled PC using TDK’s Go 

Blue USB Adaptor or PC Card. 
 
Note: The following examples assume that a PC is used to control the 
blu

 
Assuming your PC has 2 serial ports (COM1 and COM2) or that you 
have 2 PCs that each have one free serial port, attach a blu

2i

 Module to 

each COM port. Launch a terminal emulation for each COM port and 
start off with comms parameters 9600,N,8,1. 
 
Type AT<enter> and confirm that you see it echoed and then an OK 
response. If you do not see this behavior, close the application and 
restart with comms parameters 115200,N,8,1 and try again. 
 
On the first terminal emulator application, enter the following 
commands:- 
 
ATI4 
ATS0=1 
AT+BTP 
 
The response to ATI4 will be the modules Bluetooth address in the form 
of a 12 digit hex number. 
 
On the second terminal emulator app, enter the following command:- 
 
ATD<bd_addr> 
 
Where <bd_addr> is the 12 digit Bluetooth address you saw in response 
to ATI4 above. 
After a moment, you will see the response “CONNECT <bd_addr>” on 
both terminal emulators. This confirms that you have a Bluetooth 
connection between the two. 

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