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1
Laird Technologies
BT740 Development Kit
Quick Start Guide
This Quick Start Guide applies to the following part numbers:
DVK-BT740-SA
DVK-BT740-SC
I
NTRODUCTION
There are two hardware variants (on board antenna and uFL connector for external) of the BT740 Enhanced
Data Module (BTv 2.1 specification) which interface with a host via an UART and one of two logical protocols.
There are two logical protocols called AT and MP. AT is very similar to the Hayes AT protocol found in
traditional modems allowing control of one Bluetooth connection at a time. MP is a multipoint packet-based
protocol which allows the management of multiple simultaneous connections.
The BT740 ship from Laird facilities with a factory default in AT mode with communications setting of
9600,N,8,1.
This guide covers the topics below on the BT740 which is preconfigured in AT mode at production. If you
chose to convert the BT740 to MultiPoint (MP) mode, follow the
Convert Protocol section to switch protocol
modes.
Note: Detailed description of both protocols can be found in the BT740 User Manual.
R
EQUIREMENTS
DVK-BT740 including BT740 carrier board
BRBLU03-010A0 USB Bluetooth adapter or Computer with
built-in Bluetooth
BT740 development motherboard
Windows XP Operating System or later
Terminal Software such as
Laird / EZURiO terminal
-
http://www.lairdtech.com/zips/LairdTerminal_v6_9_0.zip
Laird’s
MpBtHost utility
(if using MultiPoint functionality) -
http://www.lairdtech.com/zips/MpBtHost_v3_5_0.zip
RS232 cable or USB-RS232 adaptor
The development kit motherboard’s USB socket provides ONLY power to the module. A RS232 connection is
required to have serial communications with the module on the carrier board. Laird provides a terminal
emulator program called Laird / EZURiO Terminal for AT mode operation but you can use your preferred
terminal emulator program in its place. Another program Laird provides is MpBtHost for multipoint (MP)
mode operation. This example uses the Microsoft Bluetooth stack and software that comes with Windows 7.
If your computer has built-in Bluetooth support, you can modify the computer aspect of the procedure
documented below to match your existing Bluetooth instead of using the supplied BRBLU03-010A0.
P
REPARATION
To prepare your setup, follow these steps:
Plug in the BT740 Carrier Board to the DVK motherboard.
1.
NOTE: The carrier board plugs into 40-pin Hirose connector as shown in
Figure 2
.
Figure 1: BT740-SA Module