Scheme Description

       Comply with Bluetooth Low Power BLE V5.2 specification;
       Multiple control modes are available: Bluetooth button, voice control, infrared control;
       Standard HID keyboard mode, key function and number can be customized;
       Support different protocol remote control customization;
       Support OTA upgrade;
       Support SBC voice encoding, support new encoding, can directly control the smart TV that supports Bluetooth function, OTT box, etc;
       Support customization of different voice cloud platforms;
       Connect back speed: <100ms.

The Overall Scheme of Low Cost

       High integration of the chip, less peripheral device demand, low product BOM;
       The main chip supports AMIC and DMIC, which can be selected on demand;
       Main chip built-in DC-DC, LDO, support power testing.

Low power consumption

       The sleep current of the main chip is only 0.3uA, and the measured current of the whole board is 0.53uA;
       In the low-power mode (SRAM Retention condition), the average current is only 15uA;
       Bluetooth receiving current is 4mA;

       The current is 4.6mA in 0dBm emission mode.

Product Bluetooth connection stability, good consistency

       High reception sensitivity;

       Firmware ensures low callback delay and good operation experience.