FSC-BT909 Qualcomm CSR8811 Bluetooth 5.2 Audio Module


FSC-BT909 is a Long Range Bluetooth Module with Bluetooth V5.2 audio + data specifications ( Supports BR/EDR & LE simultaneously ). It can transmit data in a range of over 500m with an integrated antenna. While using external antenna, the distance can be extended to 2000m or more. Support communicating with the FeasyBlue app and many other Bluetooth apps

Basic Parameter

Bluetooth module model FSC-BT909
Bluetooth version Bluetooth 5.2 dual mode (BR/EDR+BLE)
Chipset CSR8811
Dimension 13mm*26.9mm*2.4mm
Transmit power +18.5dBm
Profiles SPP, GATT (central/peripheral), HID, A2DP, AVRCP, HFP, HSP
Frequency 2.402-2.480GHz
Power supply 2.3-3.6V
Antenna Built-in PCB antenna, supports external antenna
Highlights Super long range, Audio+data applications, High speed

Main Features

  • Fully qualified Bluetooth 5.2/5.1/5.0/4.2/4.1/4.0/3.0/2.1/2.0/1.2/1.1
  • Postage stamp sized: 13*26.9*2.4mm
  • Class 1 support (Power up to +18.5dBm)
  • Integrated ceramic antenna or external antenna (optional)
  • The default UART Baud rate is 115.2Kbps and can support from 1200bps up to 921Kbps
  • UART, I2C, PCM/I2S, SPI, USB interfaces
  • Profiles including A2DP, AVRCP, HFP/HSP, SPP, GATT
  • USB 2.0 full-speed device/host/OTG controller


  • Audio transmitting
  • Audio transmitters
  • Bluetooth speakers
  • Multimedia players
  • Health & Medic devices
  • Barcode and RFID scanners

Firmware Options

Firmware No. Application Profiles Support
FSC-BT909 Audio General SPP, BLE, HID, HFP, A2DP, AVRCP
FSC-BT909 Data General SPP, BLE
FSC-BT909 Barcode Scanner SPP, BLE, HID
FSC-BT909 Other Customization


Type Title Date
Datasheet Feasycom FSC-BT909 Datasheet April 1, 2022
Programming User Guide FSC-BT90x Programming User Guide_V2.2.pdf April 1, 2022

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