Sub-GHz SoC and Module Selector Guide
Our Sub-GHz wireless selector guide compares our Sub-GHz transceivers, modules and SoCs to help you pick the best hardware for your IoT developments.
LPWAN 101: Finding the Right Solution
In this article, our experts cover key characteristics of LPWAN, the best use cases for this technology, and some of the most common LPWAN solutions we're seeing.
Explore our 5-Part LPWAN Tech Talk Series
Our 5-part LPWAN Tech Talk series takes viewers through some of the common design challenges that come with large-scale smart city, utility, and industrial IoT development.
Kits and Boards
Software and Tools
Learn About Wi-SUN
|Wi-SUN Certified||MCU Core||Frequency Range (MHz)||Flash (kB)||RAM (kB)||Max Output Power (dBm)||GPIO||Security||Peak RX Sensitivity|
FEATUREDEFR32FG25 Series 2 SoCs
Sub-GHz Wireless SoCs
|ARM Cortex-M33||470 928.1||1152, 1920||256, 512||16||36, 37||AES-128 AES-256 ECC SHA-1 SHA-2||-125.8 (4.8 kbps OQPSK @ 915 MHz)|
NewEFR32FG28 Series 2 SoCs New
Sub-GHz Wireless + 2.4 GHz BLE SoCs
|ARM Cortex-M33||110 970||1024||128, 256||16||31, 49||AES-128 AES-256 ECC SHA-1 SHA-2||-124.8 (4.8 kbps OQPSK @ 915 MHz)|
EFR32FG12 Series 1 Sub-GHz and 2.4 GHz SoCs
Sub-GHz and 2.4 GHz
|ARM Cortex-M4||110 2483.5||512, 1024||64, 128, 256||19, 20||28, 31, 32, 46, 65||AES-128 AES-256 ECC SHA-1 SHA-2||-102.7 (250 kbps DSSS-OQPSK 2.4 GHz), -120.6 dBm (2.4 kbps 2 GFSK 868 MHz), -126.2 (600 bps GFSK 915 MHz), -126.2 (600 bps GFSK 915 MHz); -102.7 (250 kbps DSSS-OQPSK 2.4 GHz), -126.2 (600 bps, GFSK, 915 MHz)|
Featured Wi-SUN Resources
Silicon Labs Blog
Kits and Boards
Wi-SUN Development Kits
The EFR32FG25 Wi-SUN Pro Kits are designed to support the development of Wireless IoT devices based on the Sub-GHz WiSUN FAN. The Pro Kits include a radio board that provides a complete reference design for the EFR32FG25 Wireless SoC, with the matching network for +16 dBm covering 863-876 or 902-928 MHz. Each Wi-SUN Pro Kit includes 3 complete mainboard and radio board setups allowing for configuration of a multi-node test network.
The Wireless Pro Kit Mainboard contains an on-board J-Link debugger with a Packet Trace Interface and a virtual COM port, enabling application development and debugging of the attached radio board as well as external hardware. The mainboard also contains sensors and peripherals for easy demonstration of some of the EFR32's many capabilities..
Wi-SUN-PK6015A 863-876 MHz
EFR32FG25 Wi-SUN 863-876 MHz +16 dBm Pro Kit
The EFR32FG25 Wi-SUN Pro Kit is designed to support the development of Wireless IoT devices based on the Sub-GHz Wi-SUN FAN. The Wi-SUN-PK6015A Pro Kit includes a radio board that provides a complete reference design for the EFR32FG25 Wireless SoC, with matching network for +16 dBm covering 863-876 MHz.
Wi-SUN-PK6016A 902-928 MHz
EFR32FG25 Wi-SUN 902-928 MHz +16 dBm Pro Kit
The EFR32FG25 Wi-SUN Pro Kit is designed to support the development of Wireless IoT devices based on the Sub-GHz Wi-SUN FAN. The Wi-SUN-PK6016A Pro Kit includes a radio board that provides a complete reference design for the EFR32FG25 Wireless SoC, with matching network for +16 dBm covering 902-928 MHz.
Wi-SUN Compatible Radio Boards
|Radio Board||Frequency Band||Flash (kB)||RAM (kB)||Output Power (dBm)||Wi-SUN||Bluetooth 5||Bluetooth Mesh||Zigbee||Thread||Sub-GHz||2.4 GHz|
|FG25-RB4270B||902 - 928 MHz||1920||512||16||✔||✔|
|FG25-RB4271A||863 - 876 MHz||1920||512||16||✔||✔|
|FG25-RB4272A||470 - 510 MHz||1920||512||16||✔||✔|
|SLWRB4170A||868 - 915 MHz||1024||256||19||✔||✔||✔||✔||✔||✔||✔|
Software and Tools
Wi-SUN Software Development
Silicon Labs Wi-SUN SDK includes industry-leading software stacks and development tools for Wi-SUN end nodes and border routers. In conjunction with SoCs and reference applications for Wi-SUN, developers can use software and tools from Silicon Labs to quickly and reliably:
- Develop multi-node mesh networks
- Monitor and debug multiple nodes simultaneously
- Visually analyze system performance
Visit The Community
Engage with our engineers and developers from around the world and check out our knowledge base articles featuring FAQs, example code and additional resources.
Simplify Wireless Connectivity
Learn About Wi-SUN
What is Wi-SUN?
Wi-SUN is an open standard based on IPv6 and IEEE 802.15.4g/e specifications. The Wi-SUN Alliance is responsible for the development of the standard and is a global ecosystem of member companies seeking to accelerate the implementation of Field Area Networks (FAN) and Internet of Things (IoT).
Top Benefits of Wi-SUN FAN (Field Area Network)
Wi-SUN® FAN specifications bring Smart Ubiquitous Networks to service providers, utilities, municipalities/local government and other enterprises, by enabling interoperable, multi-service and secure wireless mesh networks.
|Open standards||Based on IEEE, IETF and other open standards||
|Global solution||Unlicensed bands: 2.4 GHz, sub-GHz (dominant)||
|Radio options||FSK and OFDM modulations||
|Throughput||50 kbps to 2400 kbps||
|Application Types||High/low throughputs at low power||
Future-Proof Your Smart City Design with Our Fully Integrated
Wi-SUN FAN Certified Border Router
Works With 2023
Where Innovation Meets Implementation
Works With 2023 is bringing you two days of technical sessions, keynotes, and expert-led panels covering the latest trends, tools, and design techniques for developers. This free, all-virtual event features more than 40 technical sessions specifically designed to bring together leading ecosystem partners, thought leaders, and Silicon Labs experts to dive deep into the technologies driving IoT.