pkkh

说明：  电位器输入电压信号，经过ADC转换作为PWM的控制信号，可连续调节直流电机转速(Potentiometer input voltage signal, the ADC conversion as the PWM control signal, Adjustable Speed DC Motor)

单脉冲测角法中的三点线性约束法，此方法能很好的抑制主板内干扰。。。。(Monopulse angle measuring method of three linear constraints method, this method can interfere with the inhibitory motherboard. . . .)

here is a document describing KEy pad decoding techniques and C++ source code as well. it is show 74ls138 role in decoding.. hope it will be helpful. THANKS

实现多量程高精度数字电压的测量，基于proteus 和keil(digital volager)

说明：  STM32F429示波器源代码，实测可用。(STM32F429 oscilloscope source code, the actual measurement is available.)

MSP430F149控制SD卡读写操作，支持FAT16文件系统(The MSP430F149 Control SD card read and write operations to support the FAT16 file system)

BS83B12A-3触摸按键实现的空气净化器C源码.触摸部分的配置使用官方提供的汇编源码.(BS83B12A-3 touch buttons to achieve air purifier C source code. Configure the touch part using the official compilation of source code.)

this program can converts up to 16bits in 5 bcd digits used on a/d converts

东芝单片机 CHECKSUM 检测软件(Toshiba microcontroller CHECKSUM detection software)

可以使用keil软件，利用51单片机实现抢答器功能(Keil software can be used to achieve the use of 51 single-chip Responder function)