Digital key is a technology that uses wireless signals to communicate with vehicles, enabling keyless entry and starting of vehicles. In addition, the smart key can also lock or unlock the vehicle based on the signal sent, and even automatically close the windows and sunroof.
     With the development of intelligence and IoT technology, smart keys have been applied in more and more car models. In the future, smart keys will become more intelligent and convenient, and achieve better interconnectivity with devices such as smart homes and smartphones.

The i1121e-s and i1662e-s Bluetooth SOC modules designed and developed by BR use ranging and positioning algorithms and can meet the following scenarios for implementation：

• Startup Zone： <50cm
•  Unlock/Lock Area：<2m
•  Welcome/Away Area：8m ~12m
•  Connection area: 17~23m