Music-in-basic

有源滤波的介绍，文中详细介绍了几种有源滤波电路图(The introduction of the active filter)

基于stm32 的直流无刷电机驱动程序,BLDC 三相直流无刷电机，无霍尔传感器，速度PID环(Based stm32 DC brushless motor driver, BLDC phase DC brushless motor without Hall sensors, speed PID loop)

IAP15F2k61s2的大部分资源示例（采取模块化编程，方便开发、移植）(Most resources IAP15F2k61s2 sample (taken modular programming, facilitate the development of transplant))

利用MultiPlatform仿真软件来模拟交通信号灯(MultiPlatform simulation software to simulate the use of traffic lights)

Matlab Data analysis document

lpc1788-1_3_led_os 例程描述： 本例程使用 CooS 实现流水灯。 操作过程： 将代码运行即可，开发板上四个 LED 灯呈现流水灯模式闪烁。(Lpc1788-1_3_led_os Routine Description:   This routine uses CooS to implement a flow light. Operation process:   The code can run, the development board four LED lights show water lights flashing mode.)

可以在电脑里生成2个VCP口，具体如何操作这两个VCP口，我还没搞清楚。(Two VCP ports can be generated in the computer)

通过使用STM32F407内部的ADC资源，开发出的一款简易版示波器，能够识别并画出波形，显示频率、幅值等要素，可以调Time ，VPP level等。代码简单易读。(By using ADC resources in STM32F407, a simple version oscilloscope is developed, which can recognize and draw waveforms, display frequency, amplitude and other elements, and adjust time, VPP level, etc. The code is easy to read.)

又一种抢答器的AT89S51程序， SW1 SW2 SW3 SW4 用数码管显示最先按下的按键 01 02 03 04 并点亮对应灯： D2 D3 D4 D5 显示2S后退出。 同时发出 “嘟”一声。(Yet another answering device AT89S51 procedures, SW1 SW2 SW3 SW4 with digital display by pressing the button the first 01 02 03 04 and light the corresponding lamp: D2 D3 D4 D5 Display 2S exit. Also issued a " beep" sound.)

PIC16F690驱动PCF8563，内有PROTUES仿真，模拟IIC总线。(PIC16F690 driver PCF8563, there PROTUES simulation, simulation IIC bus.)