FSC-BT1211 Bluetooth 5.3 LE Audio Module

Tags: ,

FSC-BT1211 is a versatile module supporting BR/EDR/BLE, capable of maintaining one active link in either slave or master mode. It is designed for low energy consumption with support for multiple states and can simultaneously maintain a BR/EDR link and an LE link. The module comes preloaded with Feasycom firmware, making it user-friendly and encapsulated. The firmware allows access to Bluetooth functionalities through simple ASCII commands via a serial interface, functioning similarly to a Bluetooth modem. This makes the FSC-BT1211 an ideal solution for developers looking to integrate Bluetooth technology into their designs.


  • Bluetooth 5.3 specification compliant
  • Bluetooth classic (BDR/EDR)
  • Bluetooth low energy (BLE):
    • Generic access service
    • Device information service
    • LE Isochronous Channel (CIS/BIS/ISOAL)
    • Support LE Audio CIS/BIS Auracast
  • High speed digital peripheral interfaces: UART
  • Integrated 32K oscillator for power management
  • Bluetooth Controller:
    • Compatible with Bluetooth v2.1 and v3.0 systems
    • Supports Bluetooth 5.3 Low Energy (BLE)
    • HS-UART interface for Bluetooth data transmission compliant with H4 specification
    • Integrates MCU to execute Bluetooth protocol stack
    • Supports all packet types in basic rate and enhanced data rate
    • Supports legacy pairing and secure simple pairing in BR/EDR and BLE
    • Supports Low Power Mode (Sniff mode)
    • Enhanced BT/Wi-Fi Coexistence Control to improve transmission quality in different profiles
    • Bluetooth 5.3 Dual Mode support simultaneous BLE and BR/EDR
    • Supports multiple Low Energy States


  • Bluetooth key
  • Smart home
  • Data transmission module


Categories Features Implementation
Bluetooth Bluetooth Standard Bluetooth V5.3
Frequency Band 2.402 ~ 2.480 GHz
Interface UART/I²S/I²C
Transmit Power +10 dBm (Max.)
Receiver -95dBm (Min.) @ BLE 1Mbps
Dimensions (mm) 12 × 15 × 2.2
Operating temperature -40°C ~+85°C
Storage temperature -40°C ~+85°C
Supply Voltage 3.3V
Miscellaneous Lead Free
Lead-free and RoHS compliant
One Year
Humidity 10% ~ 90% non-condensing
MSL grade MSL 3
ESD grade Human Body Model: Pass ±2000 V
Charge device model: Pass ±500 V
Scroll to Top

Send Inquiry