1602-clock

利用51单片机做电阻测量仪，实现按键设置阻值自动报警提示(The use of 51 single-chip resistance measuring instrument to achieve automatic alarm button to set the resistance)

本程序主要是对小车进行左转控制，有三种方法左轮抱死，右轮抱死，或者左轮后退右轮前进，三种方式进行左转(This procedure is mainly to control the car on the left, there are three ways, revolver, holding in death of the wheel lock, right or left back right wheel to go forward, three ways to turn left)

MSP430 我们全国电子竞赛老师给的资料(MSP430 National Electronic contest teacher gave us the information)

c8051f060中IO口设置的参考程序，用于IO口设置(C8051F060 IO port settings for the reference program, IO port settings)

xl系列单片机实验仪演示程序 LCD1602显示 步进电机控制器速度方向圈数可调 LCD1602显示 步进电机控制器速度方向圈数可调 K1－启动与停止步进电机运行 K2－设定步进电机运行圈数 （1-20圈） K3－设定步进电机转动方向 K4－设定步进电机运行速度 步进电机的转速控制分16档，数字越小，转速越快。 7.5度步进电机；周期7.5×4=30度，电机转动一圈需12个周期 资源：p1.0-p1.3接反向器74ls14，输出后接步进电机 p3.7接小喇叭提供按键音, p1.4-p1.7接端口按键：lcd1602插入实验仪(xl Series Singlechip Experiment LCD1602 demo program shows the direction of stepper motor speed controller circle shows the number of adjustable LCD1602 direction stepper motor controller lap speed of a few adjustable K1-start and stop the stepper motor running K2-setting step motor running a few laps (1-20 laps) K3-set stepper motor rotation direction of K4-setting speed of stepper motor stepper motor speed control minutes 16 stalls, the number of smaller, faster the speed. 7.5 degree stepper motor cycle of 7.5 × 4 = 30 degrees, rotating electric lap 12 cycles required resources: p1.0-p1.3 then reverse browser 74ls14, followed by stepper motor output p3.7 then provide a small speaker key tone, p1.4-p1.7 port access keys: lcd1602 insert Tester)

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

用程控放大器MCP6S26对信号进行增益放大，并用显示屏显示出来。(With a programmable gain amplifier MCP6S26 the signal amplification, and displayed by the display.)

ssd1289-3.2的基于STM32的测试程序。(ssd1289-3.2 testing procedures based on the STM32 )

51单片机模拟一个USB键盘的代码，c语言编写的(51 USB keyboard microcontroller code that simulates a, c languages)

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.)