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FSC-BT677C Silicon Labs EFR32BG21 BLE 5.2 SIG Mesh SoC Module Long-range
FSC-BT677C Bluetooth 5.2 Low Energy SoC module based on Silicon Labs EFR32BG21 chip, incorporates a 32-bit 80 MHz ARM Cortex-M33 microcontroller, delivering a maximum power output of +10 dBm and enhanced Rx sensitivity of -104.9 dBm (min.), suitable for long range application . Utilizing low-power gecko technology, it ensures fast wake-up times and energy-saving modes, with small size design and on-board PCB antenna, this module is ideal for battery-operated applications requiring compact dimensions, high performance and low energy consumption. The module comes with powerful and easy-to-use firmware, developers can use simple UART AT commands to integrate Bluetooth functions.
Features
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- Silicon Labs EFR32BG21 long-range BLE5.2 MCU to execute complete Bluetooth BLE and Mesh protocol stack. 32-bit 80 MHz ARM Cortex-M33, DSP instruction and floating-point unit for efficient signal processing.
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- Wide Operating Temperature range: -40°C ~ +105°C.
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- Advanced BLE 5.x features:
- High Speed with LE 2Mbit PHY
- Long Range with LE coded PHY
- 255 Bytes Advertising extensions
- Low Power Consumption:
- DeepSleep current: 4.5uA
- Active mode current: 50.9uA/MHz
- RF Specification:
- Bluetooth 5.2 Low Energy (BLE) Transceiver
- Support Bluetooth Mesh network and proprietary wireless protocol development
- Class 1 support (Tx power up to +10 dBm)
- Enhanced Rx sensitivity: -104.9 dBm (Min.)
- General:
- 13mm x 16.5mm small size stamp 24-pin package
- On-board antenna, support installing external Feasycom antenna or other antenna
- Support BLE central and peripheral
- Support the OTA upgrade
- Bluetooth stack profiles: ATT, GATT, HOGP, and other BLE protocols
- UART baud rate range: 1200 bps ~ 230400 bps (default: 115200 bps)
- UART, I2C, SPI, PWM, RTC, PDM, 12-bit ADC (200ks/S) interfaces
- Advanced BLE 5.x features:
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Specifications
| Chip | Silicon Labs EFR32BG21 |
| Bluetooth Standard | Bluetooth v5.2 Low Energy |
| Transmit Power | +10 dBm (Max.) |
| Receive Sensitivity | -104.9 dBm (Min.) |
| Profiles | BLE: ATT, GATT, HOGP |
| Certifications | SRRC |
| GPIO Count | 20 |
| Interfaces | UART, I2C, SPI, ADC, PWM |
| Antenna | On-board PCB antenna by default Support installing external Feasycom antenna or other antenna |
| Dimensions (mm) | 13 × 16.5 × 1.62; Pad Pitch 1.27 |
| Operating Temperature | -40°C ~ +105°C |
| Storage Temperature | -40°C ~ +105°C |
| Supply Voltage | VDD: 1.71V ~ 3.8V |
Applications
Smart Cities
Smart Home
Smart Security
Wireless IoT
