The development of Bluetooth 5.2 low energy technology on the market has reached a mature stage, which has improved Bluetooth technology by a large margin. With Bluetooth 5.2 smart hardware only rely on a button battery is enough to use for several years, support Android, ios and other devices, making the use of this technology more extensive, applications and smart wear, bracelets, children's watches, Bluetooth speakers, Bluetooth anti-loss, thermometer, scale, Bluetooth smart color lights, Bluetooth water dispensers and other new products.
Apple released AIrTag since the release, everyone pays more attention to the anti-loss of items, Apple's Find My can find iPhone, Mac, AirPods, Apple Watch, today's Find My has not only been able to find Apple's devices, Apple announced the launch of the latest "Find My" function, gradually allowing other manufacturers' products to use this function to find lost and found, that is, third-party products can be composed of hundreds of millions of Apple products "Find." My" network, which activates the private and secure search function, allowing users to retrieve items. Everything is completely anonymous and protected by peer-to-peer encryption, so no one can view the location or information of the device, even Apple and third-party manufacturers.
Apple announced the "Work with Apple Find My" plan, interested manufacturers are not a few, for manufacturers, this is a new door opened by Apple, each time the establishment and opening of new standards, it means a piece of uncultivated land, it is possible to recreate several third-party factories such as Belkin or Anker, creating some new industry opportunities, while bringing more convenience and more choices to users.
Find My workflow
1. After using the Find My app and a Find My peripheral connection, they negotiate a pair of key pairs. The Find My app holds the private and public keys; peripherals hold the public keys.
2. The peripheral, as a BLE beacon, constantly broadcasts a changing key (derived from the public key).
3, the surrounding Apple devices (iPad, iPhone, etc., can be other people's devices) after detecting this broadcast, will combine the key inside with their own positioning data, package and upload to the Apple server.
4. Find My app gets these positioning reports from the server and parses out the relevant positioning data.
Lenz Technology has many Bluetooth product solutions that use the Find My function. Find My function practical application scenarios: children's watches, car keys, pet collars, anti-lost shoes, smart crutches, anti-loss school bags, wallets, card bags.
The ST17H6x chip is used in Apple's Find My app
ST17H6x chip features
Support for Find My Network
Built-in 64 KB SRAM, 96 KB ROM storage, and support for multiple external SPI, PWM, DMA, UART
Supports SIG-Mesh, supports multiple nodes Friend, LowPower, Proxy, Relay
Perfect security mechanism: hardware encryption based on AES-128 algorithm, hardware accelerator supporting encryption algorithm
Rich communication interfaces and GPIO pins can support a variety of scenarios and complex applications
Average power consumption for ST17H6x multi-scenario applications