[Mainchip BL702] RISC-V 144MHz32 bits RISC-V with FPU. [Memory] 132KB RAM192KB ROM, 512KB Flash. [BlueTooth 5.0 / BLE]· 2.4G hz BlueTooth V 5.0. 1Mbps and 2Mbps BLE. [Model Platform] TinyMaix + MaixHub. Optional 0.68 inch 80x160 solution screen. [Multifunctional interface] Onboard screen interface (Optional 0.68 inch 80x160 solution screen) Onboard 1 analog microphone1 LED1 IMU. Route USB 2.0 FS to USB Type-C port