FSC-BT660 BLE 5.3 Matter & OpenThread & SIG Mesh Module with 19.5dBm Maximum Output Power


The Feasycom FSC-BT660 is ideal for mesh loT wireless connectivity using Matter or OpenThread. By default, FSC-BT660 module is equipped with powerful and easy-to-use Feasycom firmware. It's easy t o use and completely encapsulated. Feasycom firmware enables users to access wireless functionality with simple ASCII commands delivered to the module over serial interface, just like a wireless modem. Therefore, FSC-BT660 provides an ideal solution for developers who want to integrate wireless technology into their design.


  • Compatible with Bluetooth Low Energy (BLE) 5.3 specification
  • Low power consumption
  • TX output power up to 19.5 dBm
  • Postage stamp sized form factor
  • Supports UART, I2C, and SPI interfaces
  • Supports Matter, OpenThread, and Bluetooth Mesh


  • Smart Home
  • Lighting
  • Building Automation
  • AI/ML


Bluetooth Module FSC-BT660
Bluetooth Standard BLE 5.3
Frequency Band 2.4G ISM band (2402~2480 MHz)
Transmit Output Power +19.5 dBm (Max.)
Receive Sensitivity -97.6 dBm (Typ.) @ 1 Mbps GFSK
Protocols Matter, OpenThread, BLE, Mesh
Interfaces UART, I2C, SPI
Size (mm) 12 × 15 × 1.7
Power Supply 1.71~3.8V
Operating Temperature -40℃ to +85℃
Storage Temperature -40℃ to +125℃

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