EFR32 Flex Gecko 2.4 GHz and 868 MHz Radio Board
Manufactured By:Silicon Labs
Part Number:SLWRB4250B
The Flex Gecko SLWRB4250B radio board plugs into the main board provided with the Flex Gecko Starter Kits. The radio board can also be used as a reference design for matching networks of the RF interfaces. The SLWRB4250B radio board supports dual-band operation with sub-GHz operation in the US FCC 868 MHz band with an external whip antenna, and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna. The matching networks are optimized to +13 dBm output power.
By combining high performance sub-GHz RF and 2.4 GHz RF transceivers with an energy efficient 32-bit MCU, the family provides designers the ultimate in flexibility with a family of pin-compatible devices that scale from 128/256 kB of flash and 16/32 kB of RAM. The ultra-low power operating modes and fast wake-up times of the Silicon Labs energy friendly 32-bit MCUs, combined with the low transmit and receive power consumption of the sub-GHz and 2.4 GHz radios result in a solution optimized for battery powered applications.
To develop and/or evaluate the EFR32 Flex Gecko the BRD4250B Radio Board can be connected to the Wireless Starter Kit Mainboard to get access to display, buttons and additional features from Expansion Boards.
The EFR32 Flex Gecko Radio Boards provide a development platform (together with the Wireless Starter Kit Mainboard) for the Silicon Labs EFR32 Flex Gecko Wireless System on Chips and serve as reference designs for the matching networks of the RF interfaces. The BRD4250B Radio Board supports dual-band operation with its integrated sub-GHz ISM band and 2.4 GHz band transceivers. The sub-GHz section is designed to the operate in the European ETSI 863-870 MHz band with an external whip antenna, the 2.4 GHz section is designed to operate at the 2400-2483.5 MHz band with the on-board printed antenna. The matching networks are optimized to 13 dBm output power.
The Flex Gecko Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio abstraction interface layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK. Functionality for lab evaluation, wake-on-radio, bi-directional packet transmit and receive are also provided as source code in sample applications. With the supporting simplicity studio suite of tools, developers can take advantage of graphical wireless application development and visual energy profiling and optimization. Connect stack is an IEEE 802.15.4 based wireless networking stack for broad-based proprietary applications, easily customizable and supports both sub-GHz and 2.4GHz frequency bands.
To develop and/or evaluate the EFR32 Flex Gecko the BRD4250B Radio Board can be connected to the Wireless Starter Kit Mainboard to get access to display, buttons and additional features from Expansion Boards.
The EFR32 Flex Gecko Radio Boards provide a development platform (together with the Wireless Starter Kit Mainboard) for the Silicon Labs EFR32 Flex Gecko Wireless System on Chips and serve as reference designs for the matching networks of the RF interfaces. The BRD4250B Radio Board supports dual-band operation with its integrated sub-GHz ISM band and 2.4 GHz band transceivers. The sub-GHz section is designed to the operate in the European ETSI 863-870 MHz band with an external whip antenna, the 2.4 GHz section is designed to operate at the 2400-2483.5 MHz band with the on-board printed antenna. The matching networks are optimized to 13 dBm output power.
The Flex Gecko Wireless SoC Starter Kit can be used in conjunction with the Connect SDK and Radio abstraction interface layer (RAIL) SDK to simplify proprietary wireless protocol development. Sample applications, including the popular range test, are included with the SDK. Functionality for lab evaluation, wake-on-radio, bi-directional packet transmit and receive are also provided as source code in sample applications. With the supporting simplicity studio suite of tools, developers can take advantage of graphical wireless application development and visual energy profiling and optimization. Connect stack is an IEEE 802.15.4 based wireless networking stack for broad-based proprietary applications, easily customizable and supports both sub-GHz and 2.4GHz frequency bands.
Features
Radio board features:- Wireless SoC: EFR32FG1P133F256GM48
- CPU core: ARM Cortex-M4 with FPU
- Flash memory: 256 kB
- RAM: 32 kB
- Dual band transceiver integrated in the Wireless SoC: EFR32
- Operation frequencies: 2.4 GHz + 868 MHz
- Transmit power: 13 dBm
- 2.4 GHz: Integrated PCB antenna.
- 868 MHz: Single SMA connector both for transmit and receive
- Crystals for LFXO and HFXO: 32.768 kHz and 38.4 MHz.