Bluetooth
®
AT Data Module
BTM430/431
The BTM430 and BTM431 Bluetooth® modules from Laird Technologies have
been designed to meet the needs of developers who wish to add robust, short
range Bluetooth data connectivity to their products. They are based on the market
leading Cambridge Silicon Radio BC04 chipset, providing exceptionally low power
consumption with outstanding range.
With a footprint as small as 12.5 mm x 18.0 mm for the BTM430 and best of
class, low-power operation, these modules are the ideal choice for applications
where designers need both performance and minimum size. For maximum
flexibility in systems integration, the modules are designed to support a separate
power supply for I/O.
To aid product development and integration, Laird Technologies has integrated a
complete Bluetooth protocol stack within the modules, including support for the
Bluetooth Serial Port Profile. The modules are fully qualified as Bluetooth End
Products, allowing designers to integrate them within their own products with no
further Bluetooth Qualification. They can then list and promote their products on
the Bluetooth website free of charge.
A comprehensive AT command or Multipoint Packet Protocol is included, which
simplifies firmware integration. This ensures that the choice of Laird Technologies
Bluetooth modules guarantees the fastest route to market.
Features and Benefits
Application Areas
Bluetooth v2.0+EDR
Adaptive frequency hopping to cope with
interference from other wireless devices
External or internal antenna options
Comprehensive AT interface for simple
programming
Multipoint Packet Protocol supporting up
to 3 connections
Bluetooth End Product Qualified
Compact size
Class 2 output – 4 dBm
Low power operation
UART interface
PCM and SCO for external codec
GPIO lines under AT control
Wi-Fi co-existence
Embedded devices
Phone accessories
Security devices
Medical and telehealth
devices
Aftermarket automotive
applications
Bluetooth advertising
ePOS
USA: +1.800.492.2320
Europe: +44.1628.858.940
Asia: +852.2268.6567
wirelessinfo@lairdtech.com
www.lairdtech.com/wireless
Bluetooth
®
AT Data Module
BTM430/431
CATEGORIES
Wireless Specification
FEATURE
Bluetooth®
Frequency
Max Transmit Power
Receive Sensitivity
Range
Data Rates
UART
GPIO
IMPLEMENTATION
Version 2.0+EDR
2.402 – 2.480 GHz - Class 2
+4 dBm (at antenna pad – BTM430)
+4 dBm (from integrated antenna – BTM431)
Better than -84 dBm
Up to 30 meters
Up to 2.1 Mbps (over the air)
Supports CTS, RTS, DTR, DSR, DCD and RI
8 lines (shared)
SPP –Serial Port Profile
FTP Client
OBEX Client
HSP (partial)
HFP (partial)
DUN
3.0 V to +3.3 V
1.7 V to +3.6 V (independent of V
CC
)
Less than 40 mA during SCO transmission
Idle (sleep) < 1 mA
2 wire and 3 wire schemes supported
50 Ohm matched SMT pad BTM430
Multilayer ceramic – BTM431
AT Command Set
12.5 mm x 18.0 mm x 3.4 mm (external antenna – BTM430)
12.5 mm x 22.0mm x 3.4 mm (integrated antenna – BTM431)
-40° C to +85° C
-40° C to +85° C
Lead-free and RoHS compliant
1 Year
Development board and software tools
End Product Approved
BTM430 – Limited Modular Approval
BTM431 – Full Modular Approval
Host Interface
User Interface
Profiles
Supply Voltage
Power Consumption
Coexistence / Compatibility
Connections
Protocols
Physical
Environmental
Miscellaneous
Developmental Tools
Approvals
Supply
I/O
Current Consumption
802.11 (Wi-Fi)
External Antenna
Internal Antenna
Dimensions
Operating Temperature
Storage Temperature
Lead Free
Warranty
Development Kit
Bluetooth
FCC/IC & CE
Ordering Information
BTM430
BTM431
DVK-BTM430
DVK-BTM431
Bluetooth AT Data Module (external antenna)
Bluetooth AT Data Module (with integrated antenna)
Development Kit (external antenna)
Development Kit (with integrated antenna)
The details contained within the document are subject to change. Download the product specification from
www.lairdtech.com/wireless
for the most current specification.
CONN-DS-BTM430-431_v1_0
Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are
subject to change without notice. Responsibility for the use and application of Laird Technologies materials rests with the end user.
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.
Revision History
Version
Date
1.0
28 Apr 15
Changes
Initial
Approved By
J. Kaye
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