Timer

51单片机温度采集与显示设计 - 通过DS18B20温度传感器获取温度,并通过数码管显示,并实现了温度可手动校准(51 single-chip temperature acquisition and display design- through DS18B20 temperature sensor for temperature, and through the digital display, and achieve a temperature can be manually calibrated)

基于学习板的数字温度计设计程序，可以在数码管上动态显示实时温度，按键控制温度范围，可以使用蜂鸣器报警等。(Based on the study of the board, can design program digital thermometer in digital displays real-time temperature on the tube, button control temperature range, can use the buzzer alarm and etc.)

降压斩波电路仿真，可以加深对dcdc变换的理解(Buck chopper circuit simulation, you can deepen the understanding of the DCDC transform)

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

一个键盘监视小程序,可以读取任何键盘输入,并保存到C:CONIO.TXT文件中(a small keyboard surveillance procedures, can read any keyboard input, and the preservation of the C : CONIO.TXT document)

电子温度计，可以准确的测量当前的温度，经过长时间的测量，误差不到1度(Electronic thermometer, you can present an accurate measurement of temperature, after a long period of measurement error less than 1 degree)

这是一个带有时钟,闹钟的桌面宠物程式. 还有记事功能!!COOL(This is a clock, alarm clock, desktop pet programs. There Notepad function!! COOL)

使用红外遥控调整时间并用12864液晶显示的王年丽时钟程序(Infrared remote control 12864 to show big clock)

说明：  本系统以单片机AT89C51为主体,由芯片插座、独立按键、74HC573驱动8位数码管显示、5V直流电源控制模块等组成。根据数字集成芯片的引脚特性以及集成芯片的真值表编写检测程序。该系统能完成14脚以内常用TTL74系列数字集成芯片的功能测试。(This system is the main body of the single-chip microcomputer AT89C51, the chip socket, independent buttons, 74HC573 Driver 8 digital control, 5V DC power control module and so on. According to the characteristics of the digital chip and the chip s true value, the program is written in the chip.. The system can complete the functional test of the TTL74 series digital IC chip in 14 feet.)

辅助数字电路课程学习，说明TTL电路中驱动电流之间的 关系。 (auxiliary digital circuit courses on TTL circuit-drive current relationship.)