BT900 Series

Overview: Bluetooth v4.0 Dual Mode

NEW: Upgrade firmware from your host microcontroller!

SMALL. SMART. SIMPLE. Laird's BT900 modules reduce the engineering burden and design risk of integrating Bluetooth and Bluetooth Low Energy into any OEM device. The BT900s tiny form factor, optimized power schemes and smartBASIC language provide a secure, stable Bluetooth environment for any embedded design. Let Laird's innovative BT900 series and decades of expertise in Bluetooth module design speed your product to market. Available in BT900-SA and BT900-SC variants.

Download the NEW UwTerminalX as well as the two companion applications: MultiDeviceLoader and TermNotify

  • Bluetooth v4.0 dual mode (BT and BLE)
  • Broad range of hardware interfaces: UART, I2C, SPI, ADC, GPIO
  • Tiny footprint (19mm x 12.5mm x 2.5 mm)
  • smartBASIC powers rapid design and deployment
  • Supports SPP, HID and any BLE Peripheral or Central roles
  • Supports simultaneous BT and BLE connections
  • Hostless operation – no need for external MCU, reducing overall BOM
  • Global Approvals


Antenna OptionsConnector Type
BT900-SAIntegrated AntennaSMT
BT900-SA-03Integrated AntennaSMT
BT900-SCu.FL ConnectorSMT
BT900-SC-03u.FL ConnectorSMT
DVK-BT900-SAIntegrated AntennaUSB Pluggable
DVK-BT900-SA-03Integrated AntennaUSB Pluggable
DVK-BT900-SCu.FL ConnectorUSB Pluggable
DVK-BT900-SC-03u.FL ConnectorUSB Pluggable


  • Antenna Type
    Integrated Antenna; u.FL connector
  • Applications
    Automotive Audio System, Automotive, Logistics, Barcode Scanners, ePOS, Medical Devices, Diagnostic, Fitness, Fleet Management, GNSS Navigation, Lighting Controls, Printers, Safety and Control
  • Bluetooth Version
    v4.0 Dual Mode
  • Certifications
    FCC / IC / CE / MIC Bluetooth SIG All BT900 Series
  • Connector Type
  • Dimensions (L x W x H)
    19.00 x 12.50 x 2.50 mm (0.75 x 0.49 x 0.10 in)
  • Frequency
    2.402 - 2.480 GHz
  • Industries
    Healthcare / Medical, Telecom, Transportation, Industrial / Production, Computer / Gaming, Other
  • Logical Interfaces
  • Max Transmit Power
    +8 dBm (Configurable down to -20 dBm) +8 dBm (Configurable down to -20 dBm)?
  • Other
    I2C Interface: 1 (configurable from GPIO total)Interface (SPI): 1 (configurable from GPIO total)
  • Output Power
    +8 dBm (maximum)
  • Product Line
    Bluetooth v4.0 Dual Mode
  • Profiles
    Any Custom Services. Included Serial Port Profile (Up to 600kbps), GATT Client & Peripheral, and HID
  • Protocols
    smartBASIC programming language
  • Range
    Up to 100 metres
  • Receive Sensitivity
    -90 dBm typical
  • Weight
    < .035 oz (< 1g)
  • Wi-Fi Coexistence
    3 wire CSR schemes supported (Unity -3; Unity-3e)
  • Wireless Specification
    2.4 - 2.478 GHz



Application Note




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