Wireless Smart Ubiquitous Network (Wi-SUN) is the leading IPv6 sub-GHz mesh technology for smart city and smart utility applications. Wi-SUN brings Smart Ubiquitous Networks to service providers, utilities, municipalities/local government, and other enterprises, by enabling interoperable, multi-service, and secure wireless mesh networks. Wi-SUN can be used for large-scale outdoor IoT wireless communication networks in a wide range of applications covering both line-powered and battery-powered nodes.
Silicon Labs' Wi-SUN hardware is certified by the Wi-SUN Alliance, a global industry association devoted to seamless LPWAN connectivity. Wi-SUN builds upon open standard internet protocols (IP) and APIs, enabling developers to extend existing infrastructure platforms to add new capabilities. Built to scale with long-range capabilities, high-data throughput and IPv6 support, Wi-SUN simplifies wireless infrastructure for industrial applications and the evolution of smart cities.
Future-Proof Your Smart City Design with Our Fully Integrated
Wi-SUN FAN Certified Border Router
Hardware
| Wi-SUN Certified | MCU Core | Frequency Range (MHz) | Flash (kB) | RAM (kB) | Max Output Power (dBm) | GPIO | Security | Peak RX Sensitivity | |
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FEATURED
EFR32FG25 Series 2 SoCs
Sub-GHz Wireless SoCs
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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) | |
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New
EFR32FG28 Series 2 SoCs New
Sub-GHz Wireless + 2.4 GHz BLE SoCs
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ARM Cortex-M33 | 169 970 | 512, 1024 | 128, 256 | 14, 20 | 31, 49 | AES-128 AES-256 ECC SHA-1 SHA-2 | — | |
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EFR32FG12 Series 1 Sub-GHz and 2.4 GHz SoCs
Sub-GHz and 2.4 GHz
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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
Tech Talk
Case Studies
White Papers
Kits and Boards
Wi-SUN Development Kits
Silicon Labs Wi-SUN Wireless Starter Kits support 868-915 MHz and is an ideal development platform for getting familiar with EFR32 FG12 and MG12 wireless SoCs. The kits provide all necessary tools for developing scalable, secure Wi-SUN IoT Applications. Radio boards supporting other Wi-SUN frequency bands can be ordered separately.
The Wireless Starter 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 | ✔ | ✔ | |||||
| SLWRB4254A | 868 MHz | 1024 | 256 | 20 | ✔ | ✔ | ✔ | ||||
| SLWRB4253A | 915 MHz | 1024 | 256 | 20 | ✔ | ✔ | ✔ | ||||
| SLWRB4164A | 915 MHz | 1024 | 256 | 19 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| SLWRB4163A | 868 MHz | 1024 | 256 | 19 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| 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
| Wi-SUN SDK |
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Technical Documentation
Find Data Sheets, App Notes and More.
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Wi-Sun Software Reference Documentation
Develop and prototype smarter. Get to market faster.
- EFR32FG12 PHY (FAN) Product Certificate
- EFR32MG12 PHY (FAN) Product Certificate
- Wi-SUN Alliance
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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.
Applications
Simplify Wireless Connectivity
Learn About Wi-SUN
overview
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.
| Requirement | Product Feature | Benefit |
| IP-based solution | IPv6/6LoWPAN |
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| Open standards | Based on IEEE, IETF and other open standards |
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| Global solution | Unlicensed bands: 2.4 GHz, sub-GHz (dominant) |
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| Radio options | FSK and OFDM modulations |
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| Throughput | 50 kbps to 2400 kbps |
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| Application Types | High/low throughputs at low power |
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