avr的ds18b20驱动，大家可以参考下，可以使用

stm32f103 cortex_m3 sd卡操作例程-stm32f103 cortex_m3sd card routine operation

利用51单片机做的USB 应用实例，可模拟三键滚轮鼠标，KEIL开发-use USB MCU do application, can simulate three key wheel mouse, development KEIL

1602 液晶显示 电子表程序时 分 秒 使用的是新华龙单片机 100脚 的 -1602 liquid crystal display digital watches every minute procedure using a new single-chip 100-pin of Hualong

C51单片机开发板电路和源代码，很详细，内部有该开发板的说明。顺便感谢下制作的公司-C51 single-chip development board circuit and the source code, very detailed and has an internal description of the development board. Incidentally, thanks to the production company under the

Proteus仿真实例，在Proteus下仿真中断，非常不错，值得下载。-Proteus simulation example, under the simulation in Proteus interruption, very good, it is worth downloading.

一个电子产品开发时的部分c代码B!绝对能用!-When an electronic product development part of c code B! Absolutely can!

液晶1602 程序----- CVAVR环境下mega8 内部8MHZ晶振-LCD 1602 program

44780lcd驱动源程序,keil C51源码，有参考价值。-44780lcd driving source, Keil C51 source, a reference value.

用ATmega8单片机驱动1602液晶显示，-ATmega8 using 1602 single-chip LCD driver,

AD转换的分辨率=参考电压/(总元素-1) 当AD为8位，总元素=256（ff）取参考电压=Vdd=5V时 分辨率=5/(256-1)= 0.019607843-resolution of the AD converter reference voltage =/(total element 1) When the AD for eight, with a total element = 256 (ff) the reference voltage Vdd = = = 5V resolution 5/(256-1) = 0.019607843