Smart Home
Smart Home
Overview
Typical smart home devices usually possess the following core communication and control capabilities:
- Network provisioning through Bluetooth and Wi-Fi hotspots
- Local communication and control with electrical control boards via common peripherals like UART
- Cloud service interaction through Wi-Fi and protocols like MQTT/WebSocket
- Perform OTA firmware updates via the cloud
The final product form factors and application scenarios are highly diverse, with varying priorities in power consumption, performance, security, and cost across different devices. Realtek offers comprehensive smart home solutions dedicated to building a secure, efficient, and user-friendly smart home ecosystem. Leveraging advanced chip technology and a robust software architecture, Realtek's smart home solutions are widely applicable to scenarios such as smart lighting, home appliance control, and environmental monitoring, meeting the diverse demands of modern smart home applications.
Wi-Fi 6 Dual-Band High-Speed Engine
- Wi-Fi 6 Speed Boost: Delivers over 3x theoretical throughput compared to Wi-Fi 5, with support for OFDMA and MU-MIMO technologies—ensuring high-speed, stable performance even when multiple devices are connected simultaneously, significantly improving smart home device responsiveness.
- Intelligent Dual-Band Switching: The 2.4 GHz band offers strong wall-penetration for reliable long-range connectivity, while the 5 GHz band provides higher bandwidth and less interference—ideal for congested environments. Devices can dynamically select the optimal band based on real-time conditions.
- R-Mesh Network Expansion: Realtek’s proprietary R-Mesh technology enables seamless whole-home coverage through multi-hop node collaboration, effectively eliminating traditional Wi-Fi dead zones and freeing smart home devices from disconnection issues.
- Wi-Fi CSI (Channel State Information): Enables advanced features such as human activity sensing, indoor positioning, and gesture recognition—enhancing product intelligence and user experience.
- Broad Router Compatibility: Rigorously tested with thousands of AP routers to ensure reliable interoperability with widely available consumer networking equipment.
End-to-End Cloud Connectivity
- Built-in Matter Support: Embracing the new standard for smart homes to break down ecosystem silos. Devices seamlessly integrate across major platforms—including Apple Home, Google Home, and Amazon Alexa—enabling true interoperability.
- Built-in AWS IoT Support: Fully aligned with the leading cloud IoT ecosystem to bridge edge devices and cloud services. Protocol implementations are continuously updated to match the latest AWS IoT standards, allowing devices to effortlessly join the full AWS IoT ecosystem for globally scalable, flexible, and efficient cloud integration.
- Comprehensive Protocol Stack: Full support for mainstream IoT communication protocols including HTTP, MQTT, WebSocket, and CoAP—ensuring optimal transport choices for both high-frequency real-time control and low-power data reporting scenarios.
Tiered Low-Power Strategy
- Ultra-Low-Power Cloud Keep-Alive: Customized low-power Wi-Fi keep-alive mechanism maintains cloud connectivity with an average current consumption of less than 100 µA, significantly extending standby time for battery-powered devices.
- Deep Sleep for Maximum Energy Savings: In idle scenarios, deep sleep mode is supported—disabling power to non-essential peripherals—to achieve an average current consumption of less than 12 µA, minimizing battery drain.
- Flexible Multi-Source Wake-Up: Supports multiple wake-up triggers including Wi-Fi wake-up (initiated by cloud commands), GPIO wake-up (triggered by external sensors such as PIR or door contacts), and Timer wake-up (for scheduled polling). All enable millisecond-level transitions to active mode, balancing ultra-low power consumption with real-time responsiveness.
End-to-End Security Protection
- Chip-Level Root of Trust: Supports Secure Boot to prevent unauthorized firmware modification, and integrates hardware-based TrustZone isolation technology to run sensitive data and applications in strictly separated partitions—establishing a robust security foundation at the silicon level.
- Enhanced Wireless Encryption: Fully supports the latest Wi-Fi security protocol WPA3, offering significantly stronger resistance against brute-force attacks compared to legacy encryption methods, and effectively preventing eavesdropping or tampering of data during wireless transmission.
- End-to-End Network Encryption: Features a hardware-accelerated TLS/SSL protocol stack for mutual authentication and encrypted communication between the device and cloud servers, ensuring user privacy is protected and meeting commercial-grade security standards.
Advantages
Supports FreeRTOS and Zephyr real-time operating systems
Supports various peripheral interfaces including UART, SPI, I2C, ADC, SDIO, etc.
Supports OTA firmware Updates, including Boot OTA and compressed OTA.
Development Resources
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SDK Download | Link | ![]() |
Matter SDK | Link |
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AWS SDK | Link |
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Wi-Fi Development Guide | Link |
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Wi-Fi R-MESH Development Guide | Link |
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Peripherals Development Guide | Link |
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OTA Development Guide | Link |
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Network Example | Link |
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Contact Us | Link |
Recommended ICs
| Features | Filter | RTL8721Dx | RTL8720E | RTL8710E | RTL8726E | RTL8713E | RTL8730E | RTL8721F | RTL872xD | RTL8735B |
|---|---|---|---|---|---|---|---|---|---|---|
| Application Processor |
Cortex-M | Cortex-M | Cortex-M | Cortex-M | Cortex-M | Cortex-A | Cortex-M | Cortex-M | Cortex-M | |
| DSP | ||||||||||
| ISP | ||||||||||
| Arm TrustZone | ||||||||||
| Dual Band | ||||||||||
| Wi-Fi 6 | ||||||||||
| R-MESH | ||||||||||
| Ultra-low Power | ||||||||||
| Ethernet | ||||||||||
| BT Dual Mode | ||||||||||
| HMI | ||||||||||
| Audio ADC | ||||||||||
| Audio DAC | ||||||||||
| SDIO Host | ||||||||||
| SD/EMMC Host | ||||||||||
| USB | ||||||||||
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BT Dedicated Antenna |
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| A2C |



