company blog about Recycle Silicon Labs Thread Networking Solutions:SiMG301,MG26,MG24,MG21

Recycle Silicon Labs Thread Networking Solutions:SiMG301,MG26,MG24,MG21

Shenzhen Mingjiada Electronics has specialised in the recycling of electronic component stock for over twenty years. Throughout the year, we purchase genuine, brand-new stock electronic components, factory surplus stock, discontinued stock, project surplus stock and genuine chips recovered from dismantled equipment at high cash prices. We offer a one-stop service, including on-site inspection and immediate settlement, to help businesses clear surplus stock and quickly recover working capital.

Recycling Service Details

Acceptable Categories: Brand-new, factory-sealed products on pallets or in tubes; loose new items; fully functional components recovered from dismantled equipment; components mounted on circuit boards; end-of-line stock from manufacturing plants; and customs stock. We do not accept refurbished or sanded items, nor defective or damaged components from dismantled equipment.

Payment Terms: Cash on delivery; settlement within seconds of receipt. Absolutely no delayed payments, deductions, hidden depreciation or price reductions.

Key Advantages of Our Buyback Service

Competitive Pricing: Leveraging our global distribution channels, we price according to spot market conditions, offering quotes for products of the same model that exceed those of standard market buyback operators;

Reliable credentials: As a registered company with on-site warehousing facilities and many years’ experience in the chip trading sector, we are able to accurately classify and price products according to model, batch and quality;

Compliant disposal: We recycle idle chips in accordance with environmental protection requirements and treat customer inventory information as confidential to prevent any disclosure of supply sources.

I. Solution Overview

In large-scale networking scenarios for smart homes, smart buildings and the Industrial Internet of Things (IIoT), traditional wireless protocols suffer from pain points such as poor network stability, weak cross-device compatibility, insufficient IPv6 support and a lack of multi-protocol concurrency capabilities. As an IPv6 mesh networking protocol designed for low-power IoT, the Thread protocol has become the core underlying protocol for Matter smart homes and large-scale IoT mesh networks, thanks to its key advantages of self-healing networking, high reliability and low latency, a fully IP-based architecture, robust security encryption, and multi-protocol compatibility.

Silicon Labs has been deeply involved in the Thread ecosystem for many years, developing a comprehensive range of Thread chips covering high-end computing power, general-purpose high performance, ultra-low power consumption and entry-level lightweight solutions. This portfolio comprises four core products: the next-generation Series 3 platform (SiMG301) and the classic Series 2 platforms (MG26, MG24 and MG21). The entire range of chips natively supports the Thread standard protocol, Matter over Thread, Zigbee and Bluetooth, enabling concurrent operation of multiple protocols. Combined with the mature OpenThread protocol stack, Secure Vault security architecture and Concurrent Multi-Protocol (CMP) technology, they can meet the networking requirements of all categories of IoT devices—including gateways, lighting, sensors, switches and smart locks—providing enterprises with a one-stop, highly compatible, highly secure and mass-production-ready Thread mesh network solution.

II. Core Technical Advantages of the Thread Protocol

Compared to wireless protocols such as Zigbee, standard Bluetooth and Wi-Fi, Silicon Labs’ optimised Thread networks offer exceptional adaptability to various scenarios. The core advantages are as follows:

- Full IPv6-based networking: With native support for the IPv6 protocol, end-to-end device communication is achieved without the need for gateway protocol conversion. The network architecture is simple and adapts to both direct cloud connectivity and whole-home smart interconnectivity scenarios, perfectly aligning with the Matter device interconnectivity standard.

- Self-healing mesh networking: Supports multi-node self-discovery, self-organisation and self-healing. A single network can accommodate hundreds of nodes; the addition or removal of devices, or faults and disconnections, do not affect the overall network operation, resolving the single points of failure and coverage blind spots associated with traditional star-shaped networks.

- Concurrent multi-protocol operation: Leveraging Silicon Labs’ proprietary CMP concurrent multi-protocol technology, a single chip can simultaneously run protocol combinations such as Thread+Zigbee, Thread+Bluetooth and Matter over Thread, without the need to replace hardware, thereby significantly reducing SKU management costs for enterprises.

- High-security encryption mechanisms: The entire product range is equipped with the Secure Vault hardware security system, supporting hardware encryption, secure key storage and ECC (Elliptic Curve Cryptography). This prevents key leakage and device hijacking, meeting the stringent security and compliance requirements of smart home and industrial IoT applications.

- Balancing low power consumption and high reliability: Optimised separately for mains-powered and battery-powered devices, these chips feature extremely low sleep-mode power consumption and strong resistance to communication interference. They deliver excellent RF performance in the 2.4 GHz band, ensuring minimal crosstalk when multiple devices coexist.

III. Key Features and Positioning of the Four Core Chip Products

Silicon Labs’ four Thread chips cover four tiers: high-end computing power, high-performance general-purpose, ultra-low power consumption, and entry-level value-for-money. Their hardware specifications and functional features are precisely tailored to different end-device scenarios, forming a comprehensive product portfolio.

3.1 SiMG301 (Series 3 Next-Generation High-End Flagship)

The SiMG301 is Silicon Labs’ flagship wireless SoC from the third-generation Series 3 platform, specifically designed for high-performance mesh network devices powered by mains electricity. It offers high-end computing power, ultimate security and full multi-protocol support, making it the core solution for next-generation Matter whole-home smart systems, high-end lighting and smart gateways.

- Core hardware configuration: Equipped with a 150MHz high-performance processor, it supports up to 4MB of Flash and 512KB of RAM. This generous memory capacity enables the smooth execution of concurrent multi-protocol operations, complex application algorithms and the full Matter protocol stack, without any memory bottlenecks.

- Scenario-Specific Optimisation: Deeply optimised for LED smart lighting, it integrates the PIXELRZ single-wire communication interface, enabling direct adaptation to LED lighting control scenarios, simplifying peripheral circuit design and reducing hardware costs for lighting equipment.

- Protocol Capabilities: Native support for Thread 1.3, Matter over Thread, Zigbee 3.0 and Bluetooth Low Energy; supports CMP concurrent multi-protocol operation, enabling simultaneous multi-protocol networking and device interconnection.

- Security and RF: Equipped with an upgraded Secure Vault security engine, it provides hardware acceleration for various encryption algorithms and supports secure firmware updates and isolated key storage; enhanced RF interference resistance significantly improves stability in large-scale networks.

- Core Positioning: High-end smart lighting, whole-home smart gateways, central control devices, and high-computational-power mains-powered IoT terminals, emphasising high performance, high scalability and long-term iterative capability.

3.2 EFR32MG26 (Series 2 High-Performance Balanced Model)

The MG26 is an advanced chip within the Series 2 platform, striking a balance between computing power, power consumption and cost. It serves as the general-purpose flagship model for mid-range Thread networking devices, is compatible with the vast majority of Matter-standard smart home devices, and offers exceptional mass-production stability.

- Core hardware configuration: Equipped with a high-performance, low-power core and featuring high-capacity storage as standard, it provides ample memory to support the concurrent operation of the Matter protocol stack and multiple protocols, striking a balance between computing power and power consumption.

- Protocol compatibility: Fully compatible with Thread, Matter, Zigbee and BLE, it supports the full-featured OpenThread stack and can be flexibly deployed as a network router, end node or gateway node.

- Power Consumption and Performance: Optimised dynamic power management mechanisms ensure low power consumption during continuous operation for mains-powered devices and extended battery life for battery-powered devices. High RF consistency makes it suitable for large-scale mass production.

- Core Applications: Mid-range smart lighting, smart sockets, wall switches, home sensors and small IoT routing nodes, emphasising universal compatibility, excellent value for money and stable mass production.

3.3 EFR32MG24 (Series 2 Ultra-Low Power Security Model)

The MG24 features hardware encryption acceleration, ultra-low power consumption and high security, making it the optimal choice for battery-powered Thread end devices. It is widely used in IoT end devices with stringent requirements for battery life and security.

- Outstanding security capabilities: Integrates a dedicated hardware encryption accelerator and natively supports cryptographic operations such as ECC (Elliptic Curve Cryptography), ECDSA (Elliptic Curve Digital Signature Algorithm) signing and ECDH (Elliptic Curve Diffie-Hellman) key exchange, enabling rapid adaptation to high-security scenarios such as secure access control systems and smart locks.

- Ultra-low-power design: Deeply optimised sleep and active power consumption, with extremely low standby power consumption, enabling several years of operation on a single battery charge, making it perfectly suited for passive IoT end devices.

- Protocols and networking: Supports Thread RCP/SOC dual modes, Matter over Thread, Bluetooth and Zigbee, with seamless multi-protocol switching, fast mesh network onboarding and a low disconnection rate.

- Core Applications: Smart door locks, passive infrared (PIR) sensors, door and window sensors, temperature and humidity sensors, and battery-powered smart devices, with a focus on ultra-low power consumption and high-security protection.

3.4 EFR32MG21 (Series 2 Entry-Level, High Value-for-Money Model)

The MG21 is Silicon Labs’ classic entry-level Thread networking chip. Thanks to its exceptional cost-effectiveness and mature, stable performance, it has become the solution of choice for large-scale, low-cost IoT networking, and is well-suited to lightweight terminal devices.

- Hardware Features: A streamlined and efficient core architecture, with hardware resources precisely tailored to the requirements of lightweight Thread end devices; the chip is compact in size and available in a wide range of package options, making it suitable for miniaturised device designs.

- Networking Capabilities: Excellent RF performance and multi-device coexistence capabilities; supports Thread standard mesh networking and can be deployed on a large scale as either end nodes or router nodes, offering exceptional network compatibility.

- Cost Advantages: Outstanding value for money and a mature mass-production supply chain, significantly reducing the hardware costs of lightweight IoT devices, making them suitable for the large-scale deployment of vast numbers of end devices.

- Core Positioning: Entry-level smart sensors, simple smart switches, standard lighting terminals and vast numbers of IoT edge nodes, focusing on low cost, high stability and ease of mass production.

IV. Typical Application Scenarios

Whole-Home Matter Smart Home Networking

The SiMG301 is used as the whole-home smart gateway and high-end lighting controller; the MG26 is suited for sockets, switches and mid-range lighting fixtures; the MG24 is used for smart locks and various sensor devices; and the MG21 covers entry-level sensor terminals. This enables the interconnection of all devices throughout the home via a Thread network, supports unified management within the Matter ecosystem, and facilitates seamless coordination between devices from different brands.

Large-Scale Smart Lighting Networking

Leveraging the SiMG301’s dedicated optimisation capabilities for lighting, in combination with MG26 and MG21 lighting terminals, this solution enables large-scale mesh networking for commercial, residential and building lighting. It supports the synchronised control of hundreds of lights, group dimming and scene-based coordination, with a stable, low-latency network suitable for scenarios involving a vast number of nodes.

Smart Building IoT Monitoring

Using MG24 and MG21 low-power sensor terminals to collect data on temperature, humidity, human presence, door and window status, and energy consumption, with the MG26 acting as a zone router and the SiMG301 responsible for data aggregation and cloud interaction, this solution establishes a low-power, highly reliable, and comprehensive building IoT monitoring network to enable intelligent building management.

Lightweight Industrial IoT Networking

Leveraging the high interference resistance, high security and self-organising networking capabilities of the entire chip series, this solution establishes an industrial edge IoT network. It is suited to lightweight industrial sensing, equipment condition monitoring and the interconnection of small industrial terminals, meeting the networking requirements of industrial scenarios for high stability, high security and low operational and maintenance overhead.