SLWSTK6023A
MSRP $164.00
EFR32xG21 Bluetooth Starter Kit
This part is Not Recommended for New Designs (NRND). For newer designs, we recommend you use xG21-PK6027A.
The EFR32xG21 Bluetooth Starter Kit supports Bluetooth 5.1 and comes ready to connect to your phone via the Silicon Labs Bluetooth LE mobile app. The EFR32xG21 2.4 GHz wireless SOC is optimized for line-powered BLE and Bluetooth mesh applications, including connected lighting, smart plugs, gateways and voice assistants.
Based on Silicon Labs EFR32xG21 2.4GHz SoC with 1024K of Flash and an 80MHz Cortex M33 MCU, the 10dBm Radio Board plugs directly into the Wireless Starter Kit Mainboard which that provides for easy evaluation and development of wireless applications.
Our software suite, Simplicity Studio, provides one-click access to design tools, documentation, software and support resources for Bluetooth development. Get up and running quickly with precompiled demos, application notes and examples. Use advanced tools including energy profiling and network analysis to optimize your wireless systems. If you want to evaluate the EFR32xG21B you must buy the xG21B radio board (SLWRB4181C +10 dBm) separately.
*Note: For bluetooth mesh developers we recommend buying 3-4 kits to create an effective mesh based system.
MSRP $164.00
OVERVIEW
GETTING STARTED
TECH DOCS
SOFTWARE & TOOLS
COMPATIBLE BOARDS
COMMUNITY & SUPPORT
OVERVIEW
Kit Contents
- 1 x Wireless starter kit mainboard
- 1 x EFR32MG21 2.4 GHz +10 dBm radio board
- Cables
- EFR32MG Getting Started Card
Main Board Features
- Modular design supports different radio boards
- Expansion header allows easy expansion
- Integrated debug
- 2x push buttons
- 2x color LEDs
- Packet Trace support on both Ethernet and USB connections
- Coin cell support
- Supports AEM (Advanced Energy Monitor) for battery measurement and Energy Profiler
Radio Board Features
- Based on EFR32xG21 with a Cortex M33 MCU, 1024 K of Flash and 96 kB of RAM
- 2.4 GHz radio supporting up to +10 dBm output power
- Inverted-F PCB antenna
Simplicity Studio Features
- AppBuilder
- Hardware Configurator
- Energy Profiler
- Network Analyzer
GETTING STARTED
Step 1: Download and Install SDK and Tools with Simplicity Studio
Get up and running quickly with precompiled demos, application notes and examples. Use advanced tools including energy profiling and network analysis to optimize your wireless systems. Choose your software package below.
Step 2: Download Simplicity Connect Mobile App
Download the Simplicity Connect App for iPhone or Android to experiment with our demos and explore the advanced features to help you developing BLE embedded applications.
Now you can test Matter devices from the Simplicity Connect App. You can use Matter devices over Thread or Wi-Fi and control it. The Matter demos that Simplicity Connect supports are Light, Door Lock, Window, Sensor, Thermostats, and Plug.
TECH DOCS
- AN1264: Using Open Thread with FreeRTOS™v0.29/1/2022
- AN1295: Developing with Thread 1.2v0.39/1/2022
- UG429: EFR32xG21 2.4 GHz 10 dBm Radio Board User's Guide v2.09/20/2022
- BRD4002A Hardware Design Package (ZIP)2/27/2025
- BRD4002A Rev. A03 Schematic (PDF)
- BRD4002A Rev. A04 Schematic (PDF)6/12/2024
- BRD4002A Rev. A05 Schematic (PDF)6/12/2024
- BRD4002A Rev. A06 Schematic (PDF)6/12/2024
- BRD4002A Rev. A07 Schematic (PDF)2/27/2025
- BRD4181B Rev. A00 Schematic (PDF)7/11/2022
SOFTWARE & TOOLS
Simplicity Studio
Get up and running quickly with precompiled demos, application notes and examples. Use advanced tools including energy profiling and network analysis to optimize your MCU and wireless systems.
COMPATIBLE BOARDS
| Radio Boards | Included Device | Flash | RAM | Output Power (dBm) | Bluetooth 5 | Bluetooth Mesh | Zigbee | Thread | Proprietary Sub-GHz | Proprietary 2.4 GHz |
|---|---|---|---|---|---|---|---|---|---|---|
| 1024 | 96 | 10 | ||||||||
| 1024 | 96 | 10 | ||||||||
| 1024 | 96 | 20 | ||||||||
| 1024 | 96 | 10.5 |
COMMUNITY & SUPPORT
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