GPIO

奇迹自动捡物按键精灵源码 可自动挂机，捡物文本源码(Miracle Source Wizard button automatically picking up objects)

大整数阶乘新思路，实现了大整数阶乘的程序(Large integer factorial new ideas, the realization of a large integer factorial process)

电子密码锁设计，实现四位密码开锁，可改密码(Electronic password lock design to achieve four bit password lock, password can be changed)

用诺基亚5110显示的悬挂运动控制系统，完美的运行了寻点，直线，画圆，循迹的程序没加进去，如果想要的话发信息至1551142817@qq.com(Nokia 5110 display with a suspension motion control system, running to find the perfect point, line, circle, tracking program not added, if desired send a message to 1551142817@qq.com)

DAC5615的使用，能够控制输出电压为设定电压，并保持恒定。(DAC5615 used to control the output voltage setting voltage, and constant.)

ACR38智能读卡器测试用：芯片IC卡等(ACR38 Smart Card Reader test: IC card, etc.)

超声波测距（5 28线性处理）,测量线性度很高(Ultrasonic Ranging (528 linear processing), high linearity measurements)

用循环程序 画用星号* 组成的方框图，可以设置方框的边长大小(Block diagram with an asterisk* cyclic process consisting of paintings, you can set the size of the box side)

MCU图片解码，使用STM32对JPEG图片解码，(STM32 JPEG decoder code,)

用keilC 开发的基于nRF24LE1的wifi收发程序，已经用于实际数据传输系统(keil C wifi nRF24LE1)