Main Features
- Qualified Bluetooth v5.1 specifications
- Postage stamp sized: 10mm x 11.9mm x 2mm
- Low power
- The default UART Baud rate is 115.2Kbps
- GAP, ATT, GATT, SMP, L2CAP profiles
- Bluetooth stack profiles: all BLE protocols
- Support SPI, UART, I2C interface
- Support the OTA upgrade
- Integrated temperature sensor
- Operating Temperature: -40°C to +85°C
- Available certifications: FCC、CE、IC、KC、TELEC、SRRC
Basic Parameter
| Bluetooth Module Model | FSC-BT691 |
|---|---|
| Bluetooth version | BLE 5.1 |
| Chipset | DA14531 |
| Dimension | 10mm x 11.9mm x 2mm |
| Certifications | FCC、CE、IC、KC、TELEC、SRRC（BT691+Shield Case） |
| Transmit power | -19.5dBm ~ 2.5dBm |
| Interfaces | UART, I2C, SPI |
| Profiles | GATT Server/ GATT Client optional |
| Frequency | 2.402-2.480 GHz |
| Power supply | 1.65V-3.6V |
| Antenna | PCB onboard antenna, supports external antenna |
| Power Consumption | 1.6uA (Sleep Mode) |
| Storage Temperature | -40℃ to +85℃ |
| Operating Temperature | -40℃ to +85℃ |
Firmware Options
| Firmware No. | Application | Profiles Support |
|---|---|---|
| FSC-BT691 | Data | GATT Server |
| FSC-BT691 | Data | GATT Client |
| FSC-BT691 | Other | Customization |
Read/write module parameters
- In the AT command state, the parameters of the module can be read and written through the AT command
- Device name, PIN code, baud rate, MAC address are the most commonly used parameters in the application, please refer to the instruction manual for details
- Interaction example of read and write parameters:
Documentation
| Type | Title | Date |
|---|---|---|
| Datasheet | FSC-BT691 Datasheet V1.5 EN.pdf | March 31, 2022 |
| Programming User Guide | FSC-BT6XX Programming User Guide V3.0(BLE).pdf | March 31, 2022 |
