BT740 Development Kit
Quick Start Guide
Americas: +1-800-492-2320 Option 3
Europe: +44-1628-858-940
Hong Kong: +852-2268-6567 x026
www.lairdtech.com/wireless
18
Laird Technologies
These two lines are the actual serial data sent from the module:
0x03 – Indicates the total length of the packet.
0x07 – Indicates the channel ID
0x41 and 0x43 – The hex values of AC.
Drop Connection
To drop the connection, close the terminal program on COM40 (
Figure 42
).
Figure 42: Closed Terminal
“06 00 86 7F 07 03”
is the serial data that should be sent from the module UART to indicate channel
0x07 is disconnected.
S
IMULTANEOUS
C
ONNECTIONS IN
MP
MODE
When BT740 is operating in MP mode, it allows simultaneous connections. For example, the module can
function as a HID keyboard and make or accept SPP.
Configuration
In order to enable HID and SPP, follow these steps:
Change the S Register (0x03) to 0x03 (
Figure 43
).
1.
Figure 43: Change the S Register
Store the S Register (
Figure 44
).
2.