Sub-GHz SoC and Module Selector Guide
Our Sub-GHz SoC and Module Selector Guide provides you with a quick, comparative overview of our portfolio to help you select the ideal SoC or module for your next project.
Our FG25 SoC Enables Landis+Gyr Smart Meters
Discover how Landis+Gyr is taking smart metering to new heights with our FG25, the first integrated Sub-GHz SoC that supports the latest Wi-SUN features.
Tech Talks: Unbox the xG28 Wireless SoC Family
Explore the new xG28 SoC family with our experts, featuring its secure dual-band Sub-GHz and 2.4 GHz Bluetooth LE capabilities, AI/ML hardware accelerator, and more.
Hardware
Kits and Boards
Proprietary Kits & Boards
EFR32xG23 Pro Kit +14 dBm
EFR32xG23 Pro Kit +14 dBm
Software and Tools
Proprietary Software Development
The Flex SDK is a complete software development suite for proprietary wireless applications that provides two paths for development. The first path begins with Silicon Labs RAIL (Radio Abstraction Interface Layer), which is an intuitive and easily-customizable radio interface layer designed to support proprietary or standards-based wireless protocols. The second path uses Silicon Labs Connect, an IEEE 802.15.4-based networking stack designed for creating easily customizable broad-based proprietary wireless networking solutions optimized for devices that require low power consumption for both sub-GHz and 2.4 GHz frequency bands and targeted for simple network topologies. The Flex SDK includes extensive documentation and sample applications, the popular range test, functionality for lab evaluation, wake-on-radio as well as bi-directional packet transmission and reception. All these examples are provided in source code within the Flex SDK sample applications. Using the supporting Simplicity Studio tools suite, developers can take advantage of the graphical user interface to quickly generate wireless applications, perform energy profiling and various system optimizations.
| RAIL (Radio Abstraction Interface Layer) | Silicon Labs’ RAIL (Radio Abstraction Interface Layer) lets you adopt the latest RF technology without sacrificing the investment you’ve made in your wireless protocol. Designed to support proprietary or standards-based protocols, RAIL simplifies and future-proofs the migration of code to new ICs. | |
| Connect Stack | Silicon Labs’ Connect is an IEEE 802.15.4 based wireless networking stack for broad-based proprietary applications and is optimized for devices that require low power consumption. This full-featured, easily customizable networking stack is designed for compliance with regulatory specifications across worldwide geographic regions and supports both sub-GHz and 2.4 GHz frequency bands. |
Related Documentation
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Technical Documentation
Find Data Sheets, App Notes and More.
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Proprietary Training
Discover training curriculum including written and video modules.
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Connect Stack Software Reference Documentation
Develop and prototype smarter for Connect Stack. Get to market faster.
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RAIL Software Reference Documentation
Develop and prototype smarter for RAIL. Get to market faster.
Development Questions?
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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
Secure, smart home solutions for Proprietary
Smart Home
Asset Tracking
Smart Metering
Learn About Proprietary
Proprietary Wireless
When a standard protocol does not fit your use case, or when your design has unique requirements, proprietary wireless networks can be the right solution. With proprietary protocols, you can design specifically for your use case, thus reducing memory and processing requirements and resulting in lower power and lower development cost. Additionally, proprietary networks are naturally more secure than other standards-based protocols due to the hidden nature of the of data rates, modulation, and packet structure. These parameters are more widely known for standard protocol networks, making them more vulnerable to security threats.
Proprietary Sub-GHz Band
Advantage of using sub-GHz frequencies in your designs is longer range. Sub-GHz radio waves can easily pass-through walls and other obstacles and can bend around buildings with much lower attenuation. Sub-GHz frequencies also have less interference than the 2.4 GHz band, which is crowded with signals from other sources such as Wi-Fi and Bluetooth devices.
Proprietary 2.4 GHz Band
A proprietary 2.4-GHz network allows you to customize wireless application layer protocol and operates on a license free band around the world which means you can deploy your application at a lower cost. Best suits for custom wireless protocol applications and interoperability with legacy 2.4-GHz wireless protocol application.
Learn more about Proprietary with these training assets
Tech Talk
Tech Talk
Tech Talk
Featured Proprietary Resources
Brochures
Case Studies
Case Studies
Works With 2025
Where Innovation Meets Implementation
Works With, now in its 6th year, has become the premier IoT developer event, bringing together device manufacturers, wireless experts, engineers, and business leaders from around the world. With a carefully curated agenda designed to accelerate the advancement of IoT innovations for smart homes, smart cities, healthcare, as well as commercial and industrial environments, Works With is where the biggest names in our industry share and discover the latest trends and technologies that are making our lives safer, smarter, and more connected.