BlueBoard_schematics_V1R1-3

STM43F4核心板 实现用ir2104驱动的全桥整流电路的驱动，包括PWM以及频率测量，电流电压的闭环控制(STM43F4 Core Board The drive of full bridge rectifier circuit driven by IR2104 is realized, including PWM, frequency measurement and closed-loop control of current and voltage.)

tune timing of read data command when crc error happen no performance impact.

一款webQQ登陆的小程序，可以登陆并发表文字说说，图文混合说说，设置说说可见权限。涉及WinHttp知识，spidermonkey脚本引擎知识(WebQQ landed a small program, you can log in and post text talk, text and graphics to talk about, talk about the visible set permissions. Involving WinHttp knowledge, spidermonkey scripting engine knowledge.)

说明：  心电采集 ,PCB工程＋原理图,硬件电路,源程序C语言,整机方案(ECG acquisition, PCB engineering + schematic diagram, hardware circuit, source program c language, overall scheme)

说明：  STM32控制AD9954产生正弦波等波形，频率幅值可调，各种调制。(STM32 controls AD9954 to generate sinusoidal wave, frequency amplitude adjustable, various modulation.)

说明：  this is a program key test

STM32F103RCT6的入门编程程序(An introductory programming program for STM32F103RCT6)

为您详细讲述单片机和接口技术细节，给您巨大的收获！(For you to describe in detail the technical details of single-chip microcomputer and interface, to you enormous harvest!)

一本讲述proteus与51单片机仿真的书(A book about the simulation of Proteus and 51 single chip computer)

采用STM32F103开发的一款简易四旋翼无人机飞控及遥控代码，适合想做无人机的同学研究借鉴。(A simple four rotor UAV flight control and remote control code developed by STM32F103 is suitable for students who want to do UAV research and use for reference.)