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Home » NEWEST Products » New by Manufacturer » Laird Technologies » Laird Wireless BTM431/443 Bluetooth® AT Data Modules & Development Kits
NEWEST Products
Laird Wireless BTM431/443 Bluetooth® AT Data Modules & Development Kits

Laird Wireless BTM431/443 Bluetooth® AT
Data Modules & Development Kits

Laird Wireless BTM431/443 Bluetooth® AT Data Modules & Development Kits 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 small footprint of 12.5 x 18mm 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 multi-point connections and numerous Bluetooth profiles. Laird Wireless BTM431/443 Bluetooth® AT Data Modules are fully qualified as Bluetooth End Products, allowing designers to integrate them within their own products with no further Bluetooth Qualification. Laird Wireless Bluetooth® AT Data Module Development Kits are also available for both the BTM431 and BTM443 modules.

Shared Features & Benefits
  • Adaptive frequency hopping to cope with interference from other wireless devices
  • External or internal antenna options
  • Comprehensive AT interface for simple programming
  • Bluetooth End Product Qualified
  • Compact size
  • Class 2 output - 4dBm
  • Low power operation
  • UART interface
  • GPIO lines under AT control (future)
BTM443 Features & Benefits
  • Bluetooth v2.1+EDR
  • Secure Simple Pairing support
BTM431 Features & Benefits
  • Embedded devices
  • Phone accessories
  • Security devices
  • Medical and telehealth devices
  • Aftermarket automotive applications
  • Bluetooth advertising
  • ePOS
Part Number Datasheet Description
Bluetooth AT Data Module, Integrated Antenna with BISM II
DVK-BTM431 Bluetooth Development Kit for BTM431
Bluetooth Enhanced Data Module, Integrated Antenna
DVK-BTM443 Bluetooth Development Kit for BTM443

BTM431 Mechanical Dimensions in mm
BTM431 Mechanical Dimensions

Note 1: Ensure there is no copper in the antenna keep out area on any layers of the host p.c. board. Also keep all mounting hardward or any metal clear of this area to prevent affecting proper antenna radiation.
Note 2: For best antenna performance the module should be placed on the edge of the host p.c. board and preferably in the corner with the antenna facing the corner.

  • Laird Technologies
  • Wireless
  • Development Tools|Embedded Solutions