BTM441 / BTM443 - Bluetooth v2.1+EDR Enhanced Data Modules

BTM44x v2.1+EDR Bluetooth enhanced data modules support additional profiles, including the Health Device Profile (HDP), making them ideal for Continua compliant medical and wellness devices.

BTM44x series Bluetooth® modules from Laird 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. These modules support the latest Bluetooth Version 2.1 Specification, providing the important advantage of Secure Simple Pairing, which improves security and enhances the ease of use for end customers. In addition to Serial Port Profile, the BTM44x series features a number of additional features and profiles not found on other Bluetooth modules.

Support for Serial Port Profile (SPP), Human Interface Device (HID) profile and Health Device Profile (HDP) are included in the module. The support of the Bluetooth Sig's Health Device Profile makes this the ideal module for development of Continua compliant medical and wellness devices. By default the Health Device Profile supports the ISO/IEEE 11073-10415 device specialization for weigh scales, but additional specializations can be made available upon request.


  • Bluetooth v2.1+EDR
  • Adaptive frequency hopping to cope with interference from other wireless devices
  • Secure Simple Pairing support
  • External or internal antenna options
  • Comprehensive AT interface for simple programming
  • Bluetooth End Product Qualified
  • Compact size
  • Class 2 output - 4 dBm
  • Low power operation
  • UART interface
  • GPIO lines under AT control

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.

* BTM443 recommended for new designs

  • Antenna Type
    Internal Antenna Multilayer ceramic
  • Applications
    Embedded Devices, Phone Accessories, Security Devices, Medical Devices, Aftermarket Automotive, Bluetooth Advertising, ePOS, Printers
  • Bluetooth Version
    v2.1 + EDR
  • Connector Type
  • Development Kit Contents
    Development board and software tools
  • Dimensions (L x W x H)
    22.00 x 12.50 x 3.40 mm (0.87 x 0.49 x 0.13 in)
  • Frequency
    2.402 - 2.480 GHz
  • Industries
    Automotive, Healthcare / Medical, Industrial / Production, Telecom, Mobile Devices, Computer / Gaming, Other
  • Logical Interfaces
  • Max Transmit Power
    +4 dBm (from integrated antenna BTM441/443)
  • Other
    Up to seven slave devices supported (throughput is limited in multipoint mode)
  • Product Line
    Bluetooth v2.1 + EDR Enhanced Class 2 Data
  • Profiles
    Serial Port Profile (SPP), Human Interface Device Profile (HID), Health Device Profile (HDP)
  • Protocols
    AT Command Set
  • Range
    Up to 30 meters
  • Receive Sensitivity
    Better than -84 dBm
  • Weight
    .105 oz (3 g)
  • Wireless Specification
    900 MHz
Partl No.
Pack Sizes

Enhanced Bluetooth Data module (Multipoint Mode with integrated antenna)

* BTM443 recommended for new designs

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BTM443 Enhanced Bluetooth Data module (AT Command Mode with integrated antenna)
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DVK-BTM443 Development board with BTM443 module soldered in place Each

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Last updated: 22 May 2018