pt2258

STM32F103C8T6主控，SPI接口驱动RC522，使用USB转成虚拟串口直读A卡UID。(STM32F103C8T6 main control, SPI interface drive RC522, use USB to convert virtual serial port to A card UID.)

几种常用AD，DA芯片的处理子程序，包括ADI和TI的几个芯片及锯齿波子程序(Several common AD, DA chip processing subroutine, including several ADI and TI' s chips and sawtooth subroutine)

stm32f030&ml5238 use for bms4850 ups.

学习ATK_ESP8266高性能UART_WIFI模块的使用,掌握基本的TCP，UDP通信串口AT指令配置方法，获取天气预报信息，并展示(Learn the use of high performance UART_WIFI module ATK_ESP8266, master the basic TCP, UDP communication serial port AT command configuration method, obtain weather forecast information, and display)

电力电子中高压直流输电控制系统的12脉波驱动仿真模型(power hvdc 12pulse)

说明：  51、AVR、ARM 单片机ISP、IAP实现远程升级的详细器件资料、说明文档、参考程序以及具体的实现方法。(51, AVR, ARM microcontroller ISP, IAP device remote upgrades detailed information, documentation, reference procedures and the specific implementation method.)

说明：  LED IIC STM32 驱动，在STM32下提供两种模式(This is a device for LED have two interface)

说明：  可以实现不通过的按键功能，模式切换，声道调节(Implementing the function of keys that do not pass)

说明：  esp8266ardino 开发板 例程 学习资料(ESP 8266ardino Development Board Routine Learning Materials)

说明：  控制步进电机的转向，转速,转速分为三档，50ms-130ms(i don't speak english)