315m_WU_XIAN_3LU_kongzhiqi

基于正点原子stm32的频谱 a1读取ad信号显示(Punctuality atomic spectrum based stm32 a1 read signal display ad)

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)

倒计时倒计时板，可以实现倒计时主题修改，时间设置等功能(dajishi)

包含了C8051的基本例程，如流水灯，IO口控制，蜂鸣器，串口通信等(C8051MCU example programs)

利用ULN2003A进行驱动，产生PWM波，里边有照片，可供参考，通过本例程了解PWM 的基本原理和使用 (#include <reg52.h> unsigned char timer1 sbit PWM=P1^2 void system_Ini() { TMOD|= 0x11 //PWM TH1 = 0xfe //11.0592 TL1 = 0x33 TR1 = 1 IE =0x8A } main() { system_Ini() while(1) { if(timer1>100) timer1=0 if(timer1<30) PWM=0 else PWM=1 } )

编写一段程序 统计从1000年到1999年之间闰年的个数 最后输出到屏幕上来(writing a program to sum up the numbers of leapyear between 1000 and 1999.Finally,showing the result on the screen.)

51单片机 做一个简易的存储示波器的程序清单(51 single-chip storage oscilloscope with a simple list of procedures)

STC12C5A60S2电子负载全部代码,TM7705做AD TM8211做DA(STC12C5A60S2,TM7705AD TM8211DA)

AD9850 AD 9851 并行 串行控制程序 很好的资料 以前自己花钱买的啊 (AD9850 AD 9851 serial parallel data control procedures well before the own money ah)

IAR开发环境，STM8L单片机，Att7053计量芯片，此仪表程序可以显示电压电流频率(IAR development environment, STM8L SCM, Att7053 measurement chip, the instrument can display the voltage and current frequency of program)