Applications > Smart Lock
Bluetooth smart locks use advanced wireless technology to deliver a secure and efficient access control solution. With Bluetooth connectivity, users can effortlessly unlock doors via smartphone apps or custom password, enabling a keyless, smart lifestyle. The low-power, stable Bluetooth connection ensures fast response within short distances, while enhancing data security to prevent unauthorized access. Easy to install without complex wiring, it is the perfect upgrade for homes and commercial spaces.
Realtek's Bluetooth chip series provides comprehensive support for smart locks, catering to diverse needs from entry-level to high-end models. Its ultra-low power consumption extends battery life, while robust Bluetooth connectivity ensures a seamless user experience. Realtek offers mature development kits and detailed technical documentation, accelerating product development, testing, and mass production. From solution selection to certification support, we provide end-to-end expertise to help customers bring competitive products to market quickly.
System Structure
RTL8762EMF is designed specifically for smart locks, focusing on providing Bluetooth wireless connectivity for inter-device communication.
The RTL8762CKF/RTL8762DKF-VS serve as the main control chips for smart locks, responsible for connecting and managing various peripherals to enable basic functions such as password unlocking. These chips feature low power consumption and fast response times, meeting fundamental requirements. For higher security functions like fingerprint recognition, they need to be paired with a dedicated security chip to operate together.
RTL8772GWF & RTL8762GKH are Bluetooth SoC Solutions optimized for smart locks.
RTL8772GWF features a Real-M300V 125MHz MCU (Cortex-M55 compatible) with ample SRAM resources to support fingerprint algorithm processing. It integrates hardware-level security mechanisms like Trust Zone and has obtained PSA-L2 certification, providing financial grade security for smart door lock applications. The QFN88 package offers up to 56 general purpose GPIOs, supporting rich peripheral interfaces through pin multiplexing, making it suitable as a single-chip solution for smart door locks.
RTL8762GKH also provides sufficient computing power for fingerprint algorithms while maintaining PSA-L2 security level. Its compact QFN48 package is designed for main control solutions requiring fewer peripheral interfaces.
Realtek partners with financial grade security solution providers to deliver complete security solutions from chip to system level, accelerating smart door lock product development and deployment.
Advantages of Solution
Utilizing Realtek's low-power chips can significantly extend battery life, reduce maintenance frequency, and ensure long-term stable operation of the smart lock.
Leveraging its optimized Bluetooth connectivity technology, Realtek enables fast and stable pairing and unlocking between smart locks and mobile phones, enhancing convenience while reducing the risk of connection failures.
From basic Bluetooth connectivity to single-chip solutions with integrated fingerprint algorithms, Realtek offers a comprehensive product portfolio that precisely meets the development needs of smart locks ranging from economical models to high-end fully-featured ones.
Realtek offers well-developed SDKs and detailed technical documentation, helping customers streamline functional development, testing, and mass production, reducing time to market.
From solution selection to certification services, Realtek ensures fast and high-quality support at every stage, empowering customers to succeed.
Start Implementing My Smart Lock Application
Feature Definition: Identify core functionalities such as Bluetooth unlocking, PIN code access, remote control, security alarms, etc.
User Needs: Consider user habits and security requirements to determine the lock's UI and operation methods.
Chip Selection: Refer to the component selection guide to choose a suitable chip that ensures stable connectivity and fast response.
Evaluation Board Purchase: Buy the corresponding evaluation board from online stores for functional assessment and performance testing to verify hardware compatibility.
App Development: Development based on the Common SDK for secondary development to achieve smart lock functions including remote control, user management, and log recording.
Security Integration: Implement advanced encryption and security protocols to ensure data transmission and storage safety.
SDK Download Portal: RTK8762C SDK | RTK8762D SDK | RTK8762E SDK | RTK87x2G SDK
Hardware Integration: Assemble chips, sensors, actuators, and other components into the door lock system.
Software Testing: Conduct comprehensive functional, performance, and security tests to ensure system stability and reliability.
Certification Preparation: Gather required documentation and test reports to apply for certifications (e.g., Bluetooth SIG, security compliance).
Mass Production Setup: Configure and test production lines to ensure quality and consistency in large-scale manufacturing.
Recommended Chips
| RTL8772GWF | RTL8762GKH | RTL8762CKF | RTL8762DKF-VS | RTL8762EMF | |
|---|---|---|---|---|---|
| MCU | Real-M300V 125MHz | Real-M300V 125MHz | CM4F 40MHz | CM4F 90MHz | CM0+ 40MHz |
| Flash | 1MB | 1MB | 512KB | 1MB | 512KB |
| SRAM | 384KB | 384KB | 160KB | 192KB | 104KB |
| Tx Power | 7.5dBm | 7.5dBm | 7.5dBm | 7.5dBm | 7.5dBm |
| Security | Secure Boot TrustZone PSA-L2 Certification | Secure Boot Trust Zone PSA-L2 Certification | Secure Boot | Secure Boot | Secure Boot |
| Audio Codec | Mono DAC | Mono DAC | - | - | - |
| GPIO (Max) | 58 | 31 | 34 | 34 | 26 |
| UART | 5 | 5 | 2 | 2 | 1 |
| DLPS | ~6uA | ~6uA | ~3uA | ~3uA | ~3uA |
| Package (mm) | QFN88, 10x10 | QFN48, 6x6 | QFN48, 6x6 | QFN48, 6x6 | QFN40, 5x5 |
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