GPIO

说明：  利用压电超声导波时间反转法的管道结构裂纹监测研究(Study on the Crack Monitoring of Pipeline Structures Using Piezoelectric Ultrasonic Guided Wave Time Reversal Method)

分别控制四路电机转动，转速以正弦规律变化。与计算机进行串口通信，可用串口控制转速，位置控制。(The rotational speed of the four motor is controlled by the sine law. Serial communication with the computer, using serial port to control the speed, position control.)

利用51单片机，XPT2046内的ad功能和dac081的功能，实现agc的程控放大。程控芯片为AD603，内部参数根据电路不同进行计算(The use of 51 single-chip microcomputer, XPT2046 within the ad function and dac081 functions to achieve AGC program-controlled amplification. The program chip is AD603, and the internal parameters are calculated according to the different circuits)

万高V9203的程序资料，DEMO程序，对使用万高芯片的工程师来说，会帮助比较大(V9203 program information, DEMO program, for engineers using V9203 chip, will help a lot)

官方AD7793参考程序，采用stm32f103(The official AD7793 reference program uses STM32F103)

说明：  Ic卡 cpu 卡 发卡源程序 Ic卡 cpu 卡 发卡源程序(ic card cpucard ic card cpucard)

对于新手调试入手很快,通过32单片进行通信控制,及算法运算。(For beginners, debugging starts very quickly, communication control is carried out through 32 single chip, and arithmetic operation is given to them.)

说明：  本程序为单片机对四相步进电机的控制，使用L297，能够通过键盘设置电机的转动角度，精度为1度，文件夹里附有源代码和仿真电路图(This procedure for the single-chip for four-phase stepper motor control, use L297, set up through the keyboard of the rotating electrical point of view, an accuracy of 1 degree, with a folder in the source code and simulation circuit)

stc89c52测试DHT11并用1602显示(DHT11 stc89c52 test and 1602 showed)

此卫星定位系统通信是没有任何问题的，如果通信不了，那就是你硬件问题了。(The GPS communication is no problem, if can t communicate, that is your hardware problems)