The development board integrates the CH340C serial-to-USB chip, providing basic debugging interface and USB upgrade interface; the design of the wake-up light and the cold and warm light provides status indication and control indication, and is convenient for debugging simple control functions Low-cost pure offline voice recognition module. This module uses chip US516P6 launched by Yunzhisheng, continuously optimizes and innovates algorithms in voice recognition technology, and deeply integrates offline recognition algorithms with chip architecture to provide customers with ultra-low-cost offline voice recognition solutions The US516P6 chip uses a 32-bit RSIC architecture core, and adds a instruction set specifically for signal processing and voice recognition, an FPU operation unit that supports floating-point operations, and an accelerator Supports offline recognition of 150 local instructions, supports RTOS system, has rich peripheral interfaces, and simple and friendly customization tools Can be widely and quickly applied to smart homes, various smart small appliances, 86 boxes, toys, lamps and other products that require voice control Dev-board model:-02-Kit Package:DIP-19 (2.54 spatial standard pin header) Working temperature:-40℃ - 85 ℃ Storage environment:-40℃- 125 ℃,Less than 90%RH Power supply:Supply voltage 5V, current 500mA Interfaces:UART//PWM//GPIO IO:5 GPIOs UART rate:UART1 default 115200 bps, UART0(IOB8) default 57600 Flash:2MB(built-ib) Support language:Chinese and English The product appearance and printed words depending on the batch, but this does not affect use Colour:Black Material:PCB Package Contents: 1 x Development Board Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.