FSC-BT836B Dual-Mode Bluetooth 5.3 SPP Module for Multiple Masters & One Slave


The Feasycom FSC-BT836B is a dual-mode Bluetooth 5.3 module that is specifically optimized for applications in high-speed wireless printers, barcode scanners, and ECG devices. Its design is tailored to meet the specific requirements of these devices, ensuring optimal performance and seamless connectivity. The standout feature of this module is its support for multi-master and single-slave configuration, enabling up to 8 master devices (7 Android devices and 1 iOS device) to connect to a single slave device. This capability allows for efficient coordination and communication between multiple devices, providing enhanced flexibility and productivity in a variety of use cases. In addition, the FSC-BT836B offers high-speed data transmission capabilities. When connected to devices using the Android operating system via the SPP profile, it supports a maximum data transfer rate of 80KB/s. For devices using the iOS system and connected via the GATT profile, it supports a maximum data transfer rate of 65KB/s. This ensures fast and reliable data transfer, facilitating quick and efficient communication between devices. With its optimized design for printer, barcode scanner, and ECG device applications, FSC-BT836B provides robust and high-performance connectivity solutions. Its support for multi-master configuration and high-speed data transmission make it an ideal choice for a wide range of industrial and healthcare applications.


  • BQB, FCC, CE, TELEC, and KC certified
  • Fully qualified Bluetooth 5.3/4.2/4.0/3.0/2.1/2.0/1.2/1.1
  • Postage stamp sized form factor
  • Low power consumption
  • Maximum TX output power is +10 dBm for Bluetooth BR/BLE and +7.5 dBm for Bluetooth EDR
  • Minimum receive sensitivity is -94 dBm for 2Mbps EDR or -98 dBm for BLE
  • The default UART Baud rate is 115.2 Kbps and can support from 1200 bps up to 921.6 Kbps
  • Supports UART, USB, PCM, I2C, PIO, AIO interfaces
  • Supports the OTA upgrade
  • Supports SPP, HID, GATT, ATT, and GAP profiles by embedded Bluetooth stack
  • Supports Apple MFi (iAP2), iBeacon, and Airsync


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


Bluetooth Module FSC-BT836B
Certifications BQB, FCC, CE, TELEC, KC
Bluetooth Version Bluetooth 5.3
Interface UART, USB, PCM, I2C, PIO, AIO
Frequency 2.402 GHz to 2.480 GHz
Outpput Power default +4.5 dBm, +10 dBm for BR/BLE (Max.), +7.5 dBm for EDR (Max.)
Sensitivity -94 dBm for 2Mbps EDR (Min.), -98 dBm for BLE (Min.)
Antenna Integrated chip antenna
Size (mm) 13 × 26.9 × 2.4
Operating Temperature -20 °C to +85 °C
Power Supply 3.3 V

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