Music-in-basic

AT89C2051时钟程序，有注释，开心学习！(AT89C2051Clockprocess)

说明：  oled驱动程序，ssd1306芯片驱动程序(OLED rivder,ssd1306 rivder)

AVR单片机实现RTL8019AS的UDP通讯，由UIP修改而来。(UDP by MCU(AVR))

提出了一种无电流传感器的三相 PWM 整流器控制策略。系统采用双闭环控制，外环 PI 调节器控制直流侧输出电压，内环通过滞环调节器控制有功功率和无功功率，达到单位功率因 数运行的目的。根据整流器的数学模型通过电流重构可获得网侧电流，以实现无电流传感器控制。 仿真实验证明该方案具有良好的控制性能。(In this paper a current sensorless control strategy of three-phase PWM rectifiers is presented. Double close-loop control method is applied in the system. DC voltage is regulated by the external loop PI regulator. The system can operate at unity power factor by controlling the active and reactive power with two inner loop hysteresis controllers. The input AC current can be reconstructed the mathematical model of PWM rectifiers in order to eliminating current sensors . The simulation results prove that the system has good performance.)

使用51单片机和HTTP通信,运用AT指令实现，每一次发送指令都会返回OK否则不执行下一步。(Use 51 single chip microcomputer and HTTP communication, use AT instruction to achieve, each time send instruction will return OK or not to execute the next step)

凌阳单片机实验，通用异步接收/发送装置，开发环境µ ’nSP(Sunplus SCM experiment, universal asynchronous receive/transmit devices, development environment μ' nSP)

说明：  esp8266相关模组的AD封装与元件库，包括ESP-01、ESP-01S、ESP-01F、ESP-01M、ESP-07、ESP-07S、ESP-12E、ESP-12F、ESP-12M等模组的PCB封装与元件库(AD PCB and component library of related modules of esp8266, including PCB and component library of esp-01, esp-01s, esp-01f, esp-01m, esp-07, esp-07s, esp-12e, esp-12f, esp-12m, etc)

单片机串口通信功能实现，在VS2010下设计了简单的界面操作，包括打开串口以及传输数据等按钮(Single-chip serial communication functions implemented in VS2010 design a simple interface operations, including opening the serial transmission of data, as well as buttons)

结合电力电子技术，在不同占空比的情况下调节不同的电压，实现对直流电机的开环调速控制(Combined with power electronics, different duty cycle in the regulation of different voltage, to achieve the DC motor open-loop speed control)

基于STM32直接操作寄存器版本，07年开关电源控制程序，采集反馈的电压进行PI调节，达到稳压目的。(Register version based on the STM32 direct operation, 07 switching power supply control procedures, collect feedback PI regulating voltage, voltage regulator.)