FSC-BT826E Realtek RTL8761 Dual-Mode Bluetooth 4.2 Module


The Feasycom FSC-BT826E is a dual-mode (BR/EDR and LE) Bluetooth 4.2 compliant module. It supports SPP, HID, GATT, ATT, and other profiles. It provides several customizable hardware interfaces such as UART, PCM, I2C, AIO, PIO, etc. FSC-BT826E incorporates high-performance MCU, Bluetooth controller and chip antenna in a small package so that customers can integrate FSC-BT826E in small products. FSC-BT826E uses UART as the programming interface, customers can use AT commands to read or write the configuration of the module through UART. FSC-BT826E is powered by Feasycom's Bluetooth stack which could provide more possibilities to the applications of customers.


  • Fully qualified Bluetooth 4.2/4.0/3.0/2.1/2.0/1.2/1.1
  • Postage stamp sized form factor
  • Low power consumption
  • Class 1.5 support (high output power)
  • The default UART Baud rate is 115.2 Kbps and can support from 1200 bps up to 921.6 Kbps
  • Supports UART and I2C hardware interfaces
  • Bluetooth stack profiles support SPP, HID, GATT, ATT, and GAP
  • Supports Apple MFi (iAP2) and iBeacon


  • Smart watch and Bluetooth bracelet
  • Health & medical devices
  • Wireless POS
  • Measurement and monitoring systems
  • Industrial sensors and controls
  • Asset tracking


Bluetooth Module FSC-BT826E
Chipset Realtek RTL8761
Bluetooth Standard Dual-mode Bluetooth 4.2
Frequency Band 2.402~2.480GHz ISM band
Transmit Output Power +5.5 dBm (Max.)
Receive Sensitivity -82 dBm @ 0.1% BER
Profiles SPP, HID, GATT, ATT, GAP, MFi, Airsync, iBeacon
Interfaces UART, I2C, PCM/I2S
Size (mm) 13 × 26.9 × 2.2
Power Supply 3.3V DC
Operating Temperature 0℃ to 70℃
Storage Temperature -40℃ to +85℃

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