Silicon Labs Flex Gecko Wireless Protocol Development Starter Kit for EFR32

  • RS Stock No. 122-9764
  • Mfr. Part No. SLWSTK6063A
  • Manufacturer Silicon Labs
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

EFR32FG Flex Gecko 2.4GHz/434MHz Dual-Band Starter Kit

The SLWSTK6063A Wireless Starter Kit (WSTK) is an excellent starting point to get familiar with the EFR32 Flex Gecko Wireless System-on-Chip (SoC). The WSTK BRD4001A mainboard features an on-board J-Link debugger, an Advanced Energy Monitor (AEM) for real-time current and voltage monitoring, and a Virtual COM port interface (VCOM). Packet Trace Interface (PTI) is supported.
The mainboard (BRD4001A) is paired with the EFR32FG 2400/434 MHz SLWRB4251B radio board (RS 122-9769) plugged directly into the mainboard. The radio board can also be used as a reference design for matching networks of the RF interfaces.
All debug functionality, including AEM, VCOM and PTI, can also be used towards an external device instead of the included radio board.


Ethernet and USB connectivity
SEGGER J-Link on-board debugger
AEM, VCOM and PTI support
Si7021 humidity and temperature sensor
Ultra-low power 128 x 128 pixel memory, buttons and LEDs
20-pin 2.54 mm header for expansion boards
Battery or USB powered

Features (radio board)

EFR32 Flex Gecko Wireless SoC with 256 kB Flash and 32 kB RAM (EFR32FG1P133F256GM48)
Inverted-F PCB antenna (2.4 GHz band)
SMA connector (434 MHz band)


The following items are included in the box:
• 2x BRD4001A Wireless Starter Kit Mainboards
• 2x BRD4251B EFR32FG 2400/434 MHz 10 dBm Radio Boards
• 2x 434 MHz antennas with SMA connector
• 2x CR2032 Lithium batteries
• 2x AA battery holders
• 2x USB Type A to USB Mini-B cables
• 1x BRD8010A WSTK Debug Adapter

Attribute Value
RF Technology Wireless Protocol Development
Kit Classification Starter Kit
Featured Device EFR32
Kit Name Flex Gecko
Frequency 2.4 GHz, 434 MHz
On back order for despatch 11/11/2020, delivery within 5 working days from despatch date.
Price (ex. GST) Each
Was $634.90
$ 500.83
(exc. GST)
$ 575.95
(inc. GST)
Per unit
1 +
Related Products
The Evaluation Kit offers a complete Wi. Fi ...
The Evaluation Kit offers a complete Wi. Fi and Bluetooth connectivity environment for NXP i.MX6 Platform. It is based on the 1CK module with Dual 2.4 GHz and 5 GHz IEEE802.11b/g/n/ac WLAN and Bluetooth v4.1+EDR Low Energy functionality. The ultra-small ...
The miniature (13mm x 44mm) Sigfox development kit ...
The miniature (13mm x 44mm) Sigfox development kit (DVK), DVK-SFUS-1-GEVK, allows designers to quickly develop Sigfox connected applications in the RCZ2 region using the AX-SFUS-API SoC solution. The DVK comes with a free two-year Sigfox subscription and is pre-programmed with ...
x. Pico 240 Evaluation Kit. Embedded IoT Gateway, ...
x. Pico 240 Evaluation Kit. Embedded IoT Gateway, Dual-band Wi-Fi, Eth. Dual-band Wi-Fi (802.11 a/b/g/n) and Ethernet. Enterprise Wi-Fi security (EAP, WPA2- Enterprise)Automatic network connection management. Concurrent Soft AP + client mode for direct wireless service access without disrupting machine ...
Compact shielded Surface-Mounted Device (SMD) module. Very low ...
Compact shielded Surface-Mounted Device (SMD) module. Very low sleep current consumption. Embedded RC232™ protocol with Addressing and Error check128 byte data buffer. Two-wire UART interface for easy RS-232/422/485 serial communication. No external components. Easy to use data interface, and no ...