BT740 Series
Enhanced Class 1 Bluetooth v2.1 Module
Every BT740 series Bluetooth module from Laird Technologies is designed to
add robust, long-range Bluetooth data connectivity to any device. Based on the
market-leading Cambridge Silicon Radio (CSR) BC04 chipset, BT740 modules
provide exceptionally low power consumption with outstanding Class 1 range via
18 dBm of transmit power. The modules support the latest Bluetooth Version 2.1
specification, including Secure Simple Pairing, which improves security and
enhances the ease of use for end customers. A broad range of Bluetooth profiles
such as Serial Port Profile (SPP) and other vital features make BT740 modules
superior to other Bluetooth modules.
With a compact footprint of 15.29 x 28.71 mm, the modules deliver maximum
range with a minimum size. Another integration advantage is the inclusion of a
complete Bluetooth protocol stack with support for multi-point connections and
numerous Bluetooth profiles, including Serial Port Profile (SPP), Human Interface
Device profile (HID), and Health Device Profile (HDP). BT740 modules are fully
qualified as a Bluetooth End Products, enabling designers to integrate the
modules in devices without the need for further Bluetooth Qualification.
An integrated AT command processor interfaces to the host system over a serial
port using an extensive range of AT commands. The AT command set abstracts
the Bluetooth protocol from the host application, saving many months of
programming and integration time. It provides extremely short integration times
for data oriented Bluetooth applications.
Included firmware provides programming support for multi-point applications
that use up to seven simultaneous data connections to and from the robust
BT740 module. A low-cost de v e l o pe rs kit makes it easy for an OEM to integrate
the module and guarantees the fastest route to prototype and then mass
production.
Features & Benefits Application Areas
Bluetooth v2.1 Medical devices
External or Internal Antennas ePOS terminals
Comprehensive AT command set Automotive Diagnostic
Bluetooth EPL Equipment
Compact Footprint Barcode Scanners
Class 1 output - 18dBm Industrial Cable
UART interfaces with GPIO & ADC Replacement
USA: +1.800.492.2320
Industrial Temperature range
Europe: +44.1628.858.940
Multipoint Capabilities with up to 7
Asia: +852.2923.0610
simultaneous connections
wirelessinfo@lairdtech.com
Full detailed product documentation is available at:-
www.lairdtech.com/wireless
BT740 Series
Enhanced Class 1 Bluetooth v2.1 Module
CATEGORIES FEATURE IMPLEMENTATION
Wireless Specification Bluetooth V2.1
Frequency 2.402 - 2.480 GHz
Max Transmit Power Class 1
18dBm from antenna
Receive Sensitivity Better than -87dBm
Range Up to1000m
Data Rates Up to 2.1Mbps (over the air)
UART Data Transfer Rate Circa 350kbps
Host Interface UART TX, RX, DCD, RI, DTR, DSR, CTS, RTS
Default 9600, n,8, 1
From 1,200 to 921,600bps
GPIO 8 configurable lines
ADC 2 lines, 8 bit resolution
Profiles SPP Serial Port Profile
HID Human Interface Device
HDP Health Device Profile
Control Protocols AT Command Set - 1 connection
Multi-Point API - 7 simultaneous connections
Supply Voltage Supply 3.3 5.0V
I/O 3.3V
Power Consumption Current Idle Mode 1.25mA
Transmit (Max Data) 35mA
Antenna Options Internal Multilayer ceramic - BT740-SA
External Connection via u.FL - BT740-SC
Physical Dimensions 15.29 mm x 28.71 mm x 3 mm
Environmental Operating -40C to +85C
Miscellaneous Lead Free Lead-free and RoHS compliant
Warranty 1-Year Warranty
Development Tools Development Kit Development board and Software Tools
Approvals Bluetooth End Product Listing (EPL)
FCC / IC / CE All BT740 Series
Ordering Information
BT740-SA Enhanced Class 1 Bluetooth v2.1 Module (internal antenna)
BT740-SC Enhanced Class 1 Bluetooth v2.1 Module ( u.FL connector)
DVK- BT740-SA Development Kit (internal antenna)
DVK- BT740-SC Development Kit (u.FL connector)
CONN-DS-BT740 v1.0
Revision History
Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are
Version Date Changes Approved By
subject to change without notice. Responsibility for the use and application of Laird Technologies materials rests with the end user.
1.0 16 Oct 2013 Initial J. Kaye
Laird Technologies makes no warranties as to the fitness, merchantability, suitability or non- infringement of any Laird Technologies
materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential
damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies Terms and Conditions of sale in
effect from time to time, a copy of which will be furnished upon request. Copyright 2013 Laird Technologies, Inc. All Rights
Reserved. Laird, Laird Technologies, the Laird Technologies Logo, and other marks are trademarks or registered trademarks of
Laird Technologies, Inc. or an affiliate company thereof. Other product or service names may be the property of third parties.
Nothing herein provides a license under any Laird Technologies or any third party intellectual property rights.