电容表89c52，比较精确，可以自己制作，内带pcb图

基于DS1302的数码管时钟电路设计源程序,使用C51语言编写，可以用于MCS8051单片机-based on the DS1302 digital clock control circuit design source, the use of C51 language, which can be used Mcs8051 MCU

用C实现信号发生装置：1、正弦波：频率、幅度可调。 2、三角波：频率、幅度可调。 3、方 波：频率、幅度、占空比可调。 4、按键：波形切换、频率调节、幅度调节、方波占空比调节。 5、显示：信号的频率、幅度，在方波时还要显示占空比。 -Implementation using C Signal: 1, sine wave: frequency, amplitude adjustable. 2, triangle-wave: frequency, amplitude adjustable. 3, square wave: the frequency, amplitude, duty cycle adjustable. 4, button: switch waveform, frequency regulation, rate regulation, adjust the duty cycle square wave. 5, show that: the signal frequency, amplitude, when they showed at the duty cycle square wave.

USB转串口的VC原代码,CH372连接单片机和计算机，起转接USB作用-USB to serial port of the original VC code, CH372 Singlechip and computer connectivity, USB adapter from the role of

本代码基于凌阳SPCE061A芯片，实现单段录音功能，并可重复播放所录语音。-Based on this code SPCE061A Sunplus chip, to achieve single-stage sound recording function, and repeat playback recorded voice.

大家一起分享,一起努力，互相学习，共同进步-thank you

C8051F52xA_53xA型单片机的串口驱动源码-C8051F52xA_53xA-based single-chip serial driver source code

此为按键部分的,读取按键值是否有按键判断部分函数-this as part of the button, reading keys value judgment whether some function keys

CP2200中文手册，不错的东西，不错的东西-CP2200_cn good good good good good

学习F020的同学， 可以看看这个 ，这是一个关于信号分析的程序，可以测量信号的上升沿，下降沿，脉宽。-If you wanna learn C51 more fast, this resoure maybe give you a helper.

英飞凌C166之XC164CS开关SWITCH程序-Infineon C166 procedures of XC164CS switch SWITCH