电容表89c52，比较精确，可以自己制作，内带pcb图

1602液晶时钟，带仿真-1602 LCD clock, with simulation

本资料是本人在网上收集到的两款时钟芯片ds1302和sd2400的读写程序，适用于单片机开发时钟-This information is collected from the I-line two clock chip ds1302 and sd2400 literacy program for developing MCU clock

avr steper motor control

嵌入式开发板搭建最小系统,在嵌入式开发板上，建立内核，文件系统等等，使最小系统能够在其上运行-to build the minimun system on a board, embedded software programms.you can rely on it to impletement the basic function of an embedded system

tc35 GSM模块与 51 单片机 通讯源文件 适合学习用-tc35 GSM module with 51 Single-Chip Communication source file suitable for learning to use

I2C程序,自动反页-I2C procedures, automatic page-

调试成功的1602驱动程序，程序比较简单易懂！-The success of the 1602 debugger driver, the program is relatively simple to understand!

步进电机及其单片机控制，步进电机及其单片机控制-And its single-chip stepper motor control, and its single-chip stepper motor control

单片机上网原理图-SCM Internet schematics

实现公历与农历的转换一般采用查表法按日查表是速度最快的方法但51 单片机寻址能力有限不可能采用 按日查表的方法除按日查外我们可以通过按月查表和按年查表的方法再通过适当的计算来确定公历日所对应的 农历日期本文采用的是按年查表法最大限度地减少表格所占的程序空间-Limited can not be used In addition to a daily look-up table method of daily things that we can search through monthly and annual look-up table look-up table method and through the appropriate calculations to determine the calendar day corresponding to the Lunar date of this paper is the annual table look-up table method to minimize the space occupied by program