FSC-BT671C EFR32BG21 BLE 5.2 SIG Mesh 10dBm Module

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FSC-BT671C

FSC-BT671C Bluetooth Low Energy BLE 5.2 module includes a 32-bit 80 MHz ARM Cortex-M33 microcontroller, which can provide a maximum power output of 10 dBm. The chip's maximum receiving sensitivity is -97.5 (1 Mbit/s GFSK) dBm, and it supports a complete DSP instruction set and floating point unit, which can speed up calculations. Low-power gecko technology supports fast wake-up time and energy-saving mode. FSC-BT671C software and SDK support Bluetooth Low Energy (LE), Bluetooth 5.2 and Bluetooth mesh network. The module also supports the development of proprietary wireless protocols. FSC-BT671C combines an energy-friendly MCU with a highly integrated radio transceiven The module is suited for any battery operated application other systems requiring high performance and low energy consumption.

Features

  • Bluetooth Low Energy (BLE) 5.2
  • Integrate MCU to execute Bluetooth protocol stack.
  • Postage stamp sized form
  • Class 1 support (up to +10 dBm)
  • The default UART Baud rate is 115.2Kbps and can support from 1200bps up to 230.4Kbps
  • Support the OTA upgrade
  • UART, I²C, SPI, 12-bit 1Msps SAR ADC
  • Bluetooth stack profiles support: LE HID and all BLE protocols
  • PWM

Applications

  • Lighting
  • Connected Home
  • Gateways and Digital Assistants
  • Building Automation and Security

Specifications

Categories Features Implementation
Wireless Specification Chip model Silicon Labs EFR32BG21
Bluetooth Version Bluetooth low energy (BLE) 5.2
Frequency 2.4 ~ 2.4835 GHz
Transmit Power +10 dBm (Maximum)
Receive Sensitivity -97.5 dBm @ 1 Mbit/s GFSK
-94.4 dBm @ 2 Mbit/s GFSK
-104.9 dBm @ 125 kbps GFSK
Modulation GFSK
Host Interface and Peripherals UART Interface TX, RX, CTS, RTS
General Purpose I/O
Default 115200, N, 8, 1
Baudrate support from 1200 to 230400 bps
5, 6, 7, 8 data bit character
GPIO 15 (maximum – configurable) lines
O/P drive strength (4 mA)
Pull-up resistor (40 kΩ) control
Read pin-level
I2C Interface 1 (configurable from GPIO total). Up to 400 kbps
ADC Interface Analog input voltage range: 0V ~ 3.3V
Supports single 12-bit 1 Msps SAR ADC conversion
8 channels (configured from GPIO total)
PWM 3 General-Purpose Timer Modules
Four General-Purpose Timer Modules
(Two 16-Bit or One 32-Bit Timers, PWM Each)
Profiles Classic Bluetooth NA
Bluetooth Low Energy GATT Client & Peripheral - Any Custom Services
BT5.2 Specifications
Maximum Connections Classic Bluetooth NA
Bluetooth Low Energy 1 Client
FW upgrade Over the Air
Xds
Supply Voltage Supply 1.71V ~ 3.8V
Power Consumption 33.8 mA TX current @ 10 dBm output power at 2.4 GHz
Standby Doze (Wait event): ~5mA
50.9 μA/MHz in Active Mode
4.5 μA DeepSleep current (16 kB RAM retention and RTC running from LFRCO)
Physical Dimensions (mm) 10 × 11.9 × 1.8; Pad Pitch 1.1
Environmental Operating -40°C to +105°C
Storage -40°C to +105°C
Miscellaneous Lead Free Lead-free and RoHS compliant
Warranty One Year
Humidity 10% ~ 90% non-condensing
MSL grade: MSL 3
ESD grade: Human Body Model All pins: ±2500V
Charged device model RF pins/Non-RF pins: ±750V

Firmware

Firmware No. Application Profiles Support
FSC-BT671C BLE Master & Slave GATT, OTA
FSC-BT671C Mesh Network Mesh
FSC-BT671C Other Customization
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