Feasycom Bluetooth Car Key Practical Solution: Effortlessly Enhancing the Travel Experience

Amid the wave of automotive intelligence, digital car keys have emerged as an innovative solution that replaces traditional physical keys with digital technology. By enabling communication and interaction between vehicles and digital devices such as smartphones, smartwatches, or other smart terminals, digital keys allow users to lock, unlock, and start the engine with ease. Feasycom’s Bluetooth modules, with their outstanding performance and innovative applications, provide a fresh solution for Bluetooth-based digital car keys, making travel more convenient, secure, and intelligent.

Working Principle

Digital keys typically rely on technologies such as Bluetooth, NFC (Near Field Communication), or mobile networks. When a digital device approaches the vehicle, the vehicle’s sensing system receives the signal and verifies it. Once authenticated, the system performs the corresponding operation.

A future trend is the integration of all three technologies—BLE, NFC, and UWB—into a single terminal (such as a smartphone or smart wearable). In this integrated solution:

  • BLE handles vehicle wake-up and authorization transmission,

  • UWB provides precise user positioning after wake-up,

  • NFC serves as a backup method for unlocking and starting the vehicle when the phone battery is dead.

Automotive-Grade and Secure

Security: Digital keys usually employ encryption to ensure communication safety, significantly reducing the risk of duplication or theft.

Automotive-grade: Feasycom’s BT3721V Bluetooth module is built with Silicon Labs’ EFR32BG22 chip and complies with AEC-Q100 automotive-grade standards. It is specifically designed for automotive applications, capable of withstanding extreme temperatures, humidity, and vibrations. Its Bluetooth 5.3 low energy design extends device lifespan and reduces power consumption, making every vehicle start more environmentally friendly and energy-efficient.

Seamless Entry & One-Touch Start

Convenience: There’s no need to carry a physical key anymore—just bring a device with digital key functionality. Imagine walking to your car with your hands full of shopping bags or holding a child, and the door unlocks automatically without needing to touch anything. Feasycom’s BT3721V module, thanks to precise positioning algorithms and antenna design, enables automatic wake-up and unlocking when your phone approaches the vehicle. Once mutual authentication is complete, the user can unlock the door, start the engine, or even check vehicle status—all effortlessly. This seamless experience makes every trip smooth and enjoyable.

Bluetooth Car Key

Multi-Device Connection & Smart Integration

Feasycom’s BT3721V Bluetooth module supports simultaneous connection of up to 8 devices, enabling robust smart integration for in-vehicle systems. This means users can connect smartphones, smartwatches, and more, unlocking richer functionality—such as remote vehicle control via a mobile app, checking vehicle status, or streaming music and making calls through Bluetooth. This transforms the vehicle into a mobile smart terminal.

Personalized Settings for Customized Experience

Personalization: Different user permissions and functions can be configured according to the preferences and needs of each individual. For example, users can assign temporary access to family or friends, set speed limits for specific users, or automatically adjust seat and mirror positions based on their profile. These personalized settings make the vehicle truly tailored to the user, enhancing the driving experience.

Over-the-Air (OTA) Updates for Continuous Optimization

With continuous technological advancement, Feasycom’s BT3721V Bluetooth module supports OTA (Over-the-Air) updates, ensuring that the device is always up to date. Firmware can be wirelessly updated to optimize performance and functionality—keeping the system current without hardware replacement. This ongoing evolution ensures your vehicle’s tech stays ahead of the curve and delivers cutting-edge intelligent experiences.

Bluetooth Car Key 1

Wide Adoption and Developer Support

Feasycom’s Bluetooth modules are already in mass production for well-known automakers such as Dongfeng, Chery, Hozon, XPeng, and Geely, and have been widely recognized by the market. Feasycom also provides a mobile app SDK, allowing developers to easily integrate and expand functions, enabling users to enjoy more diverse and enhanced applications.

Conclusion

Feasycom’s automotive-grade Bluetooth modules, such as BT3721V and BT618V, offer a comprehensive solution for Bluetooth-based digital car keys. With features like seamless entry, multi-device connectivity, personalized settings, and continuous OTA optimization, Feasycom not only enhances convenience and intelligence in travel but also boosts vehicle security and user experience.

Choose Feasycom Bluetooth modules to start your journey into smarter mobility!