FSC-BT631D nRF5340 Bluetooth 5.4 LE Audio Module


The Feasycom FSC-BT631D is a LE Audio module that utilizes the Nordic nRF5340 chip, supporting both BR/EDR and LE Audio. This module comes preloaded with Feasycom's powerful and user-friendly firmware. It is designed to be easy to use and fully encapsulated, providing a seamless integration experience. With Feasycom firmware, users can access Bluetooth functionality through simple ASCII commands delivered to the module over a serial interface. It functions like a Bluetooth modem, allowing developers to easily incorporate Bluetooth wireless technology into their designs. The FSC-BT631D module from Feasycom offers an ideal solution for developers seeking to integrate Bluetooth wireless technology into their designs. Its powerful features and ease of use make it a versatile choice for a wide range of applications such as LE Audio, home automation, multimedia players, medical application, and true wireless earbuds.


  • BLE 5.4 and BR/EDR
  • LE Audio
  • Direction finding
  • 2 Mbps, Advertising extensions and long range
  • Class 1 Bluetooth power level supported
  • Bluetooth mesh
  • Thread, Zigbee and 802.1 5.4
  • NFC
  • Full-speed USB
  • Secure key storage
  • Low Complexity Communications Codec (LC3)
  • I2S and PDM audio interfaces
  • Capable of all angle-of-arrival (AoA) and angle-of-departure (AoD) roles in Bluetooth Direction Finding
  • Ultra-low-power radio


  • Home automation
  • LE Audio
  • Multimedia players
  • Medical application
  • True wireless earbuds


Item Description
Bluetooth Version Bluetooth 5.4
Chipset Nordic nRF5340
lnterface UART/I²S/USB
Dimensions 12 x 15 x 2.2 mm
Transmit Power +3 dBm
Operating Temperature -30 °C to +85 °C
Frequency 2.402 GHz to 2.480 GHz
Supply Voltage 3.3V

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